<div dir="ltr"><div><div><div><div><div>Hi Thierry,<br><br></div>I was able to now reporduce the issue.. <br><br></div>the ns-slapd process just got hung,.. however, no core file was generate..<br><br></div>I manually created a coredump using gcore and then took a strace of it<br>this is  strace from the coredump generated<br><br>GNU gdb (GDB) Red Hat Enterprise Linux 7.6.1-80.el7<br>Copyright (C) 2013 Free Software Foundation, Inc.<br>License GPLv3+: GNU GPL version 3 or later <<a href="http://gnu.org/licenses/gpl.html">http://gnu.org/licenses/gpl.html</a>><br>This is free software: you are free to change and redistribute it.<br>There is NO WARRANTY, to the extent permitted by law.  Type "show copying"<br>and "show warranty" for details.<br>This GDB was configured as "x86_64-redhat-linux-gnu".<br>For bug reporting instructions, please see:<br><<a href="http://www.gnu.org/software/gdb/bugs/">http://www.gnu.org/software/gdb/bugs/</a>>...<br>Reading symbols from /usr/sbin/ns-slapd...Reading symbols from /usr/sbin/ns-slapd...(no debugging symbols found)...done.<br>(no debugging symbols found)...done.<br>[New LWP 105159]<br>[New LWP 105160]<br>[New LWP 105161]<br>[New LWP 105162]<br>[New LWP 105163]<br>[New LWP 105164]<br>[New LWP 105165]<br>[New LWP 105166]<br>[New LWP 105167]<br>[New LWP 105168]<br>[New LWP 105171]<br>[New LWP 105172]<br>[New LWP 105173]<br>[New LWP 105174]<br>[New LWP 105175]<br>[New LWP 105176]<br>[New LWP 105177]<br>[New LWP 105178]<br>[New LWP 105179]<br>[New LWP 105180]<br>[New LWP 105181]<br>[New LWP 105182]<br>[New LWP 105183]<br>[New LWP 105184]<br>[New LWP 105185]<br>[New LWP 105186]<br>[New LWP 105187]<br>[New LWP 105188]<br>[New LWP 105189]<br>[New LWP 105190]<br>[New LWP 105191]<br>[New LWP 105192]<br>[New LWP 105193]<br>[New LWP 105194]<br>[New LWP 105195]<br>[New LWP 105196]<br>[New LWP 105197]<br>[New LWP 105198]<br>[New LWP 105199]<br>[New LWP 105200]<br>[New LWP 105201]<br>[New LWP 105203]<br>[New LWP 105215]<br>[New LWP 105158]<br>[Thread debugging using libthread_db enabled]<br>Using host libthread_db library "/lib64/libthread_db.so.1".<br>Core was generated by `/usr/sbin/ns-slapd'.<br>#0  0x00007f1b48ae69b3 in select () from /lib64/libc.so.6<br><br>Thread 44 (Thread 0x7f1b4b6d9840 (LWP 105158)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941b2c3 in PR_EnterMonitor () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4b7125ed in setup_pr_read_pds ()<br>No symbol table info available.<br>#3  0x00007f1b4b715fd9 in slapd_daemon ()<br>No symbol table info available.<br>#4  0x00007f1b4b707c6c in main ()<br>No symbol table info available.<br><br>Thread 43 (Thread 0x7f1a5df0f700 (LWP 105215)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941b050 in PR_WaitCondVar () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4b71df25 in ps_send_results ()<br>No symbol table info available.<br>#3  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#4  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#5  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 42 (Thread 0x7f1b03fe7700 (LWP 105203)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941b050 in PR_WaitCondVar () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4b71df25 in ps_send_results ()<br>No symbol table info available.<br>#3  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#4  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#5  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 41 (Thread 0x7f1b047e8700 (LWP 105201)):<br>#0  0x00007f1b48ae69b3 in select () from /lib64/libc.so.6<br>No symbol table info available.<br>#1  0x00007f1b4b2710e9 in DS_Sleep () from /usr/lib64/dirsrv/libslapd.so.0<br>No symbol table info available.<br>#2  0x00007f1b4b712325 in time_thread ()<br>No symbol table info available.<br>#3  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#4  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#5  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 40 (Thread 0x7f1b04fe9700 (LWP 105200)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b433212f3 in __db_hybrid_mutex_suspend () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#2  0x00007f1b43320640 in __db_tas_mutex_lock () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#3  0x00007f1b4343ae1b in __memp_fget () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#4  0x00007f1b4333e211 in __bam_search () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#5  0x00007f1b43329256 in __bamc_search () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#6  0x00007f1b4332d6c4 in __bamc_put () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#7  0x00007f1b433e46d5 in __dbc_iput () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#8  0x00007f1b433dfa0e in __db_put () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#9  0x00007f1b433f4fa4 in __db_put_pp () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#10 0x00007f1b3e8cf4cf in idl_new_insert_key () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#11 0x00007f1b3e8de5b5 in addordel_values_sv.isra.3 () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#12 0x00007f1b3e8df25a in index_addordel_values_ext_sv () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#13 0x00007f1b3e8df694 in index_addordel_values_sv () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#14 0x00007f1b3e8df75a in index_addordel_entry () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#15 0x00007f1b3e8e25fa in ldbm_back_add () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#16 0x00007f1b4b1e4cca in op_shared_add () from /usr/lib64/dirsrv/libslapd.so.0<br>No symbol table info available.<br>#17 0x00007f1b4b1e6020 in do_add () from /usr/lib64/dirsrv/libslapd.so.0<br>No symbol table info available.<br>#18 0x00007f1b4b711303 in connection_threadmain ()<br>No symbol table info available.<br>#19 0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#20 0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#21 0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 39 (Thread 0x7f1b057ea700 (LWP 105199)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941b050 in PR_WaitCondVar () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4b70efee in connection_wait_for_new_work ()<br>No symbol table info available.<br>#3  0x00007f1b4b710719 in connection_threadmain ()<br>No symbol table info available.<br>#4  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#5  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#6  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 38 (Thread 0x7f1b05feb700 (LWP 105198)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941b050 in PR_WaitCondVar () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4b70efee in connection_wait_for_new_work ()<br>No symbol table info available.<br>#3  0x00007f1b4b710719 in connection_threadmain ()<br>No symbol table info available.<br>#4  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#5  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#6  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 37 (Thread 0x7f1b067ec700 (LWP 105197)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941b050 in PR_WaitCondVar () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4b70efee in connection_wait_for_new_work ()<br>No symbol table info available.<br>#3  0x00007f1b4b710719 in connection_threadmain ()<br>No symbol table info available.<br>#4  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#5  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#6  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 36 (Thread 0x7f1b06fed700 (LWP 105196)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941b050 in PR_WaitCondVar () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4b70efee in connection_wait_for_new_work ()<br>No symbol table info available.<br>#3  0x00007f1b4b710719 in connection_threadmain ()<br>No symbol table info available.<br>#4  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#5  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#6  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 35 (Thread 0x7f1b077ee700 (LWP 105195)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941b2c3 in PR_EnterMonitor () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b3e8c23e6 in dblayer_txn_begin () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#3  0x00007f1b3e8fe007 in ldbm_back_modify () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#4  0x00007f1b4b22b541 in op_shared_modify () from /usr/lib64/dirsrv/libslapd.so.0<br>No symbol table info available.<br>#5  0x00007f1b4b22c004 in modify_internal_pb () from /usr/lib64/dirsrv/libslapd.so.0<br>No symbol table info available.<br>#6  0x00007f1b3eb48b60 in ipapwd_apply_mods () from /usr/lib64/dirsrv/plugins/libipa_pwd_extop.so<br>No symbol table info available.<br>#7  0x00007f1b3eb4c8e0 in store_new_keys () from /usr/lib64/dirsrv/plugins/libipa_pwd_extop.so<br>No symbol table info available.<br>#8  0x00007f1b3eb4ead0 in ipapwd_extop () from /usr/lib64/dirsrv/plugins/libipa_pwd_extop.so<br>No symbol table info available.<br>#9  0x00007f1b4b23bba2 in plugin_call_exop_plugins () from /usr/lib64/dirsrv/libslapd.so.0<br>No symbol table info available.<br>#10 0x00007f1b4b717efe in do_extended ()<br>No symbol table info available.<br>#11 0x00007f1b4b71141a in connection_threadmain ()<br>No symbol table info available.<br>#12 0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#13 0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#14 0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 34 (Thread 0x7f1b07fef700 (LWP 105194)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941b050 in PR_WaitCondVar () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4b70efee in connection_wait_for_new_work ()<br>No symbol table info available.<br>#3  0x00007f1b4b710719 in connection_threadmain ()<br>No symbol table info available.<br>#4  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#5  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#6  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 33 (Thread 0x7f1b087f0700 (LWP 105193)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941b050 in PR_WaitCondVar () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4b70efee in connection_wait_for_new_work ()<br>No symbol table info available.<br>#3  0x00007f1b4b710719 in connection_threadmain ()<br>No symbol table info available.<br>#4  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#5  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#6  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 32 (Thread 0x7f1b08ff1700 (LWP 105192)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941b050 in PR_WaitCondVar () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4b70efee in connection_wait_for_new_work ()<br>No symbol table info available.<br>#3  0x00007f1b4b710719 in connection_threadmain ()<br>No symbol table info available.<br>#4  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#5  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#6  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 31 (Thread 0x7f1b097f2700 (LWP 105191)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941b050 in PR_WaitCondVar () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4b70efee in connection_wait_for_new_work ()<br>No symbol table info available.<br>#3  0x00007f1b4b710719 in connection_threadmain ()<br>No symbol table info available.<br>#4  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#5  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#6  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 30 (Thread 0x7f1b09ff3700 (LWP 105190)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b433212f3 in __db_hybrid_mutex_suspend () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#2  0x00007f1b43320640 in __db_tas_mutex_lock () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#3  0x00007f1b433cad3a in __lock_get_internal () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#4  0x00007f1b433cb820 in __lock_get () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#5  0x00007f1b433f7142 in __db_lget () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#6  0x00007f1b4333e605 in __bam_search () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#7  0x00007f1b43329256 in __bamc_search () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#8  0x00007f1b4332ad0f in __bamc_get () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#9  0x00007f1b433e3ca6 in __dbc_iget () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#10 0x00007f1b433f2b02 in __dbc_get_pp () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#11 0x00007f1b3e8ce680 in idl_new_fetch () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#12 0x00007f1b3e8dcb26 in index_read_ext_allids () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#13 0x00007f1b3e8c7284 in keys2idl () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#14 0x00007f1b3e8c79e3 in ava_candidates.isra.0 () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#15 0x00007f1b3e8c7fd2 in filter_candidates_ext () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#16 0x00007f1b3e8c9096 in list_candidates () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#17 0x00007f1b3e8c7f40 in filter_candidates_ext () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#18 0x00007f1b3e8c9096 in list_candidates () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#19 0x00007f1b3e8c7f40 in filter_candidates_ext () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#20 0x00007f1b3e8c9096 in list_candidates () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#21 0x00007f1b3e8c7f40 in filter_candidates_ext () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#22 0x00007f1b3e90380c in subtree_candidates () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#23 0x00007f1b3e904e7f in ldbm_back_search () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#24 0x00007f1b4b2321d6 in op_shared_search () from /usr/lib64/dirsrv/libslapd.so.0<br>No symbol table info available.<br>#25 0x00007f1b4b72333e in do_search ()<br>No symbol table info available.<br>#26 0x00007f1b4b7113c3 in connection_threadmain ()<br>No symbol table info available.<br>#27 0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#28 0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#29 0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 29 (Thread 0x7f1b0a7f4700 (LWP 105189)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941b050 in PR_WaitCondVar () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4b70efee in connection_wait_for_new_work ()<br>No symbol table info available.<br>#3  0x00007f1b4b710719 in connection_threadmain ()<br>No symbol table info available.<br>#4  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#5  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#6  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 28 (Thread 0x7f1b0aff5700 (LWP 105188)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941b050 in PR_WaitCondVar () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4b70efee in connection_wait_for_new_work ()<br>No symbol table info available.<br>#3  0x00007f1b4b710719 in connection_threadmain ()<br>No symbol table info available.<br>#4  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#5  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#6  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 27 (Thread 0x7f1b0b7f6700 (LWP 105187)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941b050 in PR_WaitCondVar () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4b70efee in connection_wait_for_new_work ()<br>No symbol table info available.<br>#3  0x00007f1b4b710719 in connection_threadmain ()<br>No symbol table info available.<br>#4  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#5  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#6  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 26 (Thread 0x7f1b0bff7700 (LWP 105186)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b433212f3 in __db_hybrid_mutex_suspend () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#2  0x00007f1b43320640 in __db_tas_mutex_lock () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#3  0x00007f1b433cad3a in __lock_get_internal () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#4  0x00007f1b433cb820 in __lock_get () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#5  0x00007f1b433f7142 in __db_lget () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#6  0x00007f1b4333e605 in __bam_search () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#7  0x00007f1b43329256 in __bamc_search () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#8  0x00007f1b4332ad0f in __bamc_get () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#9  0x00007f1b433e3ca6 in __dbc_iget () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#10 0x00007f1b433f2b02 in __dbc_get_pp () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#11 0x00007f1b3e8ce680 in idl_new_fetch () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#12 0x00007f1b3e8dcb26 in index_read_ext_allids () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#13 0x00007f1b3e8c7284 in keys2idl () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#14 0x00007f1b3e8c79e3 in ava_candidates.isra.0 () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#15 0x00007f1b3e8c7fd2 in filter_candidates_ext () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#16 0x00007f1b3e8c9096 in list_candidates () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#17 0x00007f1b3e8c7f40 in filter_candidates_ext () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#18 0x00007f1b3e90380c in subtree_candidates () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#19 0x00007f1b3e904e7f in ldbm_back_search () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#20 0x00007f1b4b2321d6 in op_shared_search () from /usr/lib64/dirsrv/libslapd.so.0<br>No symbol table info available.<br>#21 0x00007f1b4b24294e in search_internal_callback_pb () from /usr/lib64/dirsrv/libslapd.so.0<br>No symbol table info available.<br>#22 0x00007f1b4b242be8 in search_internal_pb () from /usr/lib64/dirsrv/libslapd.so.0<br>No symbol table info available.<br>#23 0x00007f1b4b72149b in ids_sasl_canon_user ()<br>No symbol table info available.<br>#24 0x00007f1b491e193b in _sasl_canon_user () from /lib64/libsasl2.so.3<br>No symbol table info available.<br>#25 0x00007f1b491e1c4c in _sasl_canon_user_lookup () from /lib64/libsasl2.so.3<br>No symbol table info available.<br>#26 0x00007f1b430e9fb9 in gssapi_server_mech_step () from /usr/lib64/sasl2/libgssapiv2.so<br>No symbol table info available.<br>#27 0x00007f1b491edb9b in sasl_server_step () from /lib64/libsasl2.so.3<br>No symbol table info available.<br>#28 0x00007f1b4b72283b in ids_sasl_check_bind ()<br>No symbol table info available.<br>#29 0x00007f1b4b70a61a in do_bind ()<br>No symbol table info available.<br>#30 0x00007f1b4b7113fd in connection_threadmain ()<br>No symbol table info available.<br>#31 0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#32 0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#33 0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 25 (Thread 0x7f1b0c7f8700 (LWP 105185)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941b050 in PR_WaitCondVar () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4b70efee in connection_wait_for_new_work ()<br>No symbol table info available.<br>#3  0x00007f1b4b710719 in connection_threadmain ()<br>No symbol table info available.<br>#4  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#5  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#6  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 24 (Thread 0x7f1b0cff9700 (LWP 105184)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941b050 in PR_WaitCondVar () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4b70efee in connection_wait_for_new_work ()<br>No symbol table info available.<br>#3  0x00007f1b4b710719 in connection_threadmain ()<br>No symbol table info available.<br>#4  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#5  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#6  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 23 (Thread 0x7f1b0d7fa700 (LWP 105183)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941b050 in PR_WaitCondVar () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4b70efee in connection_wait_for_new_work ()<br>No symbol table info available.<br>#3  0x00007f1b4b710719 in connection_threadmain ()<br>No symbol table info available.<br>#4  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#5  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#6  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 22 (Thread 0x7f1b0dffb700 (LWP 105182)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941b050 in PR_WaitCondVar () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4b70efee in connection_wait_for_new_work ()<br>No symbol table info available.<br>#3  0x00007f1b4b710719 in connection_threadmain ()<br>No symbol table info available.<br>#4  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#5  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#6  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 21 (Thread 0x7f1b0e7fc700 (LWP 105181)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941b050 in PR_WaitCondVar () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4b70efee in connection_wait_for_new_work ()<br>No symbol table info available.<br>#3  0x00007f1b4b710719 in connection_threadmain ()<br>No symbol table info available.<br>#4  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#5  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#6  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 20 (Thread 0x7f1b0effd700 (LWP 105180)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b433212f3 in __db_hybrid_mutex_suspend () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#2  0x00007f1b43320b37 in __db_tas_mutex_readlock () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#3  0x00007f1b4343ad35 in __memp_fget () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#4  0x00007f1b433e4333 in __dbc_iget () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#5  0x00007f1b433f2b02 in __dbc_get_pp () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#6  0x00007f1b3e8ce822 in idl_new_fetch () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#7  0x00007f1b3e8dcb26 in index_read_ext_allids () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#8  0x00007f1b3e8c7284 in keys2idl () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#9  0x00007f1b3e8c79e3 in ava_candidates.isra.0 () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#10 0x00007f1b3e8c7fd2 in filter_candidates_ext () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#11 0x00007f1b3e8c9096 in list_candidates () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#12 0x00007f1b3e8c7f40 in filter_candidates_ext () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#13 0x00007f1b3e8c9096 in list_candidates () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#14 0x00007f1b3e8c7f40 in filter_candidates_ext () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#15 0x00007f1b3e8c9096 in list_candidates () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#16 0x00007f1b3e8c7f40 in filter_candidates_ext () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#17 0x00007f1b3e90380c in subtree_candidates () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#18 0x00007f1b3e904e7f in ldbm_back_search () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#19 0x00007f1b4b2321d6 in op_shared_search () from /usr/lib64/dirsrv/libslapd.so.0<br>No symbol table info available.<br>#20 0x00007f1b4b72333e in do_search ()<br>No symbol table info available.<br>#21 0x00007f1b4b7113c3 in connection_threadmain ()<br>No symbol table info available.<br>#22 0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#23 0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#24 0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 19 (Thread 0x7f1b0f7fe700 (LWP 105179)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b433212f3 in __db_hybrid_mutex_suspend () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#2  0x00007f1b43320640 in __db_tas_mutex_lock () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#3  0x00007f1b433cad3a in __lock_get_internal () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#4  0x00007f1b433cb820 in __lock_get () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#5  0x00007f1b433f7142 in __db_lget () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#6  0x00007f1b4333e605 in __bam_search () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#7  0x00007f1b43329256 in __bamc_search () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#8  0x00007f1b4332ad0f in __bamc_get () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#9  0x00007f1b433e3ca6 in __dbc_iget () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#10 0x00007f1b433f2b02 in __dbc_get_pp () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#11 0x00007f1b3e8ce680 in idl_new_fetch () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#12 0x00007f1b3e8dcb26 in index_read_ext_allids () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#13 0x00007f1b3e8c7284 in keys2idl () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#14 0x00007f1b3e8c79e3 in ava_candidates.isra.0 () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#15 0x00007f1b3e8c7fd2 in filter_candidates_ext () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#16 0x00007f1b3e8c9096 in list_candidates () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#17 0x00007f1b3e8c7f40 in filter_candidates_ext () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#18 0x00007f1b3e8c9096 in list_candidates () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#19 0x00007f1b3e8c7f40 in filter_candidates_ext () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#20 0x00007f1b3e8c9096 in list_candidates () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#21 0x00007f1b3e8c7f40 in filter_candidates_ext () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#22 0x00007f1b3e90380c in subtree_candidates () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#23 0x00007f1b3e904e7f in ldbm_back_search () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#24 0x00007f1b4b2321d6 in op_shared_search () from /usr/lib64/dirsrv/libslapd.so.0<br>No symbol table info available.<br>#25 0x00007f1b4b72333e in do_search ()<br>No symbol table info available.<br>#26 0x00007f1b4b7113c3 in connection_threadmain ()<br>No symbol table info available.<br>#27 0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#28 0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#29 0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 18 (Thread 0x7f1b0ffff700 (LWP 105178)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941b050 in PR_WaitCondVar () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4b70efee in connection_wait_for_new_work ()<br>No symbol table info available.<br>#3  0x00007f1b4b710719 in connection_threadmain ()<br>No symbol table info available.<br>#4  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#5  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#6  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 17 (Thread 0x7f1b14d28700 (LWP 105177)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941b050 in PR_WaitCondVar () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4b70efee in connection_wait_for_new_work ()<br>No symbol table info available.<br>#3  0x00007f1b4b710719 in connection_threadmain ()<br>No symbol table info available.<br>#4  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#5  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#6  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 16 (Thread 0x7f1b15529700 (LWP 105176)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941b050 in PR_WaitCondVar () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4b70efee in connection_wait_for_new_work ()<br>No symbol table info available.<br>#3  0x00007f1b4b710719 in connection_threadmain ()<br>No symbol table info available.<br>#4  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#5  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#6  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 15 (Thread 0x7f1b15d2a700 (LWP 105175)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941b050 in PR_WaitCondVar () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4b70efee in connection_wait_for_new_work ()<br>No symbol table info available.<br>#3  0x00007f1b4b710719 in connection_threadmain ()<br>No symbol table info available.<br>#4  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#5  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#6  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 14 (Thread 0x7f1b1652b700 (LWP 105174)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941b050 in PR_WaitCondVar () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4b70efee in connection_wait_for_new_work ()<br>No symbol table info available.<br>#3  0x00007f1b4b710719 in connection_threadmain ()<br>No symbol table info available.<br>#4  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#5  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#6  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 13 (Thread 0x7f1b16d2c700 (LWP 105173)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b433212f3 in __db_hybrid_mutex_suspend () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#2  0x00007f1b43320640 in __db_tas_mutex_lock () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#3  0x00007f1b433cad3a in __lock_get_internal () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#4  0x00007f1b433cb820 in __lock_get () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#5  0x00007f1b433f7142 in __db_lget () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#6  0x00007f1b4333e605 in __bam_search () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#7  0x00007f1b43329256 in __bamc_search () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#8  0x00007f1b4332ad0f in __bamc_get () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#9  0x00007f1b433e3ca6 in __dbc_iget () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#10 0x00007f1b433f2b02 in __dbc_get_pp () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#11 0x00007f1b3e8ce680 in idl_new_fetch () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#12 0x00007f1b3e8dcb26 in index_read_ext_allids () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#13 0x00007f1b3e8c7284 in keys2idl () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#14 0x00007f1b3e8c79e3 in ava_candidates.isra.0 () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#15 0x00007f1b3e8c7fd2 in filter_candidates_ext () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#16 0x00007f1b3e8c9096 in list_candidates () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#17 0x00007f1b3e8c7f40 in filter_candidates_ext () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#18 0x00007f1b3e8c9096 in list_candidates () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#19 0x00007f1b3e8c7f40 in filter_candidates_ext () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#20 0x00007f1b3e8c9096 in list_candidates () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#21 0x00007f1b3e8c7f40 in filter_candidates_ext () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#22 0x00007f1b3e90380c in subtree_candidates () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#23 0x00007f1b3e904e7f in ldbm_back_search () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#24 0x00007f1b4b2321d6 in op_shared_search () from /usr/lib64/dirsrv/libslapd.so.0<br>No symbol table info available.<br>#25 0x00007f1b4b72333e in do_search ()<br>No symbol table info available.<br>#26 0x00007f1b4b7113c3 in connection_threadmain ()<br>No symbol table info available.<br>#27 0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#28 0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#29 0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 12 (Thread 0x7f1b1752d700 (LWP 105172)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941b050 in PR_WaitCondVar () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4b70efee in connection_wait_for_new_work ()<br>No symbol table info available.<br>#3  0x00007f1b4b710719 in connection_threadmain ()<br>No symbol table info available.<br>#4  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#5  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#6  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 11 (Thread 0x7f1b17d2e700 (LWP 105171)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941b050 in PR_WaitCondVar () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4b70efee in connection_wait_for_new_work ()<br>No symbol table info available.<br>#3  0x00007f1b4b710719 in connection_threadmain ()<br>No symbol table info available.<br>#4  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#5  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#6  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 10 (Thread 0x7f1b2509d700 (LWP 105168)):<br>#0  0x00007f1b48dc5a82 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941ab07 in pt_TimedWait () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4941afce in PR_WaitCondVar () from /lib64/libnspr4.so<br>No symbol table info available.<br>#3  0x00007f1b4b2061e8 in eq_loop () from /usr/lib64/dirsrv/libslapd.so.0<br>No symbol table info available.<br>#4  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#5  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#6  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 9 (Thread 0x7f1b2589e700 (LWP 105167)):<br>#0  0x00007f1b48dc5a82 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941ab07 in pt_TimedWait () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4941afce in PR_WaitCondVar () from /lib64/libnspr4.so<br>No symbol table info available.<br>#3  0x00007f1b4b719d03 in housecleaning ()<br>No symbol table info available.<br>#4  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#5  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#6  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 8 (Thread 0x7f1b2609f700 (LWP 105166)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941b050 in PR_WaitCondVar () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4b260198 in slapi_wait_condvar () from /usr/lib64/dirsrv/libslapd.so.0<br>No symbol table info available.<br>#3  0x00007f1b3cf5deed in roles_cache_wait_on_change () from /usr/lib64/dirsrv/plugins/libroles-plugin.so<br>No symbol table info available.<br>#4  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#5  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#6  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 7 (Thread 0x7f1b268a0700 (LWP 105165)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941b050 in PR_WaitCondVar () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4b260198 in slapi_wait_condvar () from /usr/lib64/dirsrv/libslapd.so.0<br>No symbol table info available.<br>#3  0x00007f1b3cf5deed in roles_cache_wait_on_change () from /usr/lib64/dirsrv/plugins/libroles-plugin.so<br>No symbol table info available.<br>#4  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#5  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#6  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 6 (Thread 0x7f1b270a1700 (LWP 105164)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941b050 in PR_WaitCondVar () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4b260198 in slapi_wait_condvar () from /usr/lib64/dirsrv/libslapd.so.0<br>No symbol table info available.<br>#3  0x00007f1b3cf5deed in roles_cache_wait_on_change () from /usr/lib64/dirsrv/plugins/libroles-plugin.so<br>No symbol table info available.<br>#4  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#5  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#6  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 5 (Thread 0x7f1b278a2700 (LWP 105163)):<br>#0  0x00007f1b48dc56d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#1  0x00007f1b4941b050 in PR_WaitCondVar () from /lib64/libnspr4.so<br>No symbol table info available.<br>#2  0x00007f1b4b260198 in slapi_wait_condvar () from /usr/lib64/dirsrv/libslapd.so.0<br>No symbol table info available.<br>#3  0x00007f1b415f262e in cos_cache_wait_on_change () from /usr/lib64/dirsrv/plugins/libcos-plugin.so<br>No symbol table info available.<br>#4  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#5  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#6  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 4 (Thread 0x7f1b282ac700 (LWP 105162)):<br>#0  0x00007f1b48ae69b3 in select () from /lib64/libc.so.6<br>No symbol table info available.<br>#1  0x00007f1b4b2710e9 in DS_Sleep () from /usr/lib64/dirsrv/libslapd.so.0<br>No symbol table info available.<br>#2  0x00007f1b3e8ba707 in perf_threadmain () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#3  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#4  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#5  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 3 (Thread 0x7f1b28aad700 (LWP 105161)):<br>#0  0x00007f1b48ae69b3 in select () from /lib64/libc.so.6<br>No symbol table info available.<br>#1  0x00007f1b4b2710e9 in DS_Sleep () from /usr/lib64/dirsrv/libslapd.so.0<br>No symbol table info available.<br>#2  0x00007f1b3e8bfb7f in trickle_threadmain () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#3  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#4  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#5  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 2 (Thread 0x7f1b292ae700 (LWP 105160)):<br>#0  0x00007f1b48ae69b3 in select () from /lib64/libc.so.6<br>No symbol table info available.<br>#1  0x00007f1b4344dbad in __os_yield () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#2  0x00007f1b434492b3 in __memp_sync_int () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#3  0x00007f1b43459752 in __txn_checkpoint () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#4  0x00007f1b43459b74 in __txn_checkpoint_pp () from /lib64/<a href="http://libdb-5.3.so">libdb-5.3.so</a><br>No symbol table info available.<br>#5  0x00007f1b3e8c3a87 in checkpoint_threadmain () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#6  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#7  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#8  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br>Thread 1 (Thread 0x7f1b29aaf700 (LWP 105159)):<br>#0  0x00007f1b48ae69b3 in select () from /lib64/libc.so.6<br>No symbol table info available.<br>#1  0x00007f1b4b2710e9 in DS_Sleep () from /usr/lib64/dirsrv/libslapd.so.0<br>No symbol table info available.<br>#2  0x00007f1b3e8bf907 in deadlock_threadmain () from /usr/lib64/dirsrv/plugins/libback-ldbm.so<br>No symbol table info available.<br>#3  0x00007f1b494207bb in _pt_root () from /lib64/libnspr4.so<br>No symbol table info available.<br>#4  0x00007f1b48dc1dc5 in start_thread () from /lib64/libpthread.so.0<br>No symbol table info available.<br>#5  0x00007f1b48aef28d in clone () from /lib64/libc.so.6<br>No symbol table info available.<br><br><br><br></div>Thanks,<br><br></div>Rakesh<br><div><div><br></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Sep 5, 2016 at 4:48 PM, thierry bordaz <span dir="ltr"><<a href="mailto:tbordaz@redhat.com" target="_blank">tbordaz@redhat.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
  
    
  
  <div text="#000000" bgcolor="#FFFFFF">
    <br>
    <br>
    <div>On 09/05/2016 12:05 PM, Rakesh
      Rajasekharan wrote:<br>
    </div>
    <blockquote type="cite">
      <div dir="ltr">
        <div>
          <div>
            <div>
              <div>
                <div>Hi Thierry,<br>
                  <br>
                  <br>
                </div>
                <div>I was getting the hang issue while running
                  ipa-client-install simultaneously on few clients..<br>
                </div>
                <div>However, today, I am not able to replicate that. <br>
                </div>
                <div><br>
                </div>
                <div>I could not get a gdb . But i will try getting that
                  the next time I face this issue.<br>
                  <br>
                </div>
                The CPU does not stay high.. it just momentarily touches
                a high value and then drops down to around 2-7%<br>
                <br>
              </div>
              One question I have is , is it ok to set it
              nsslapd-threadnumber to a very high value .<br>
            </div>
            I have around 4000 clients and with
            nsslapd-maxthreadsperconn set to 5..So, can I set
            nsslapd-threadnumber to around 25000.<br>
          </div>
        </div>
      </div>
    </blockquote>
    <br>
    Hello,<br>
    <br>
    I know some users running in production with several hunderds of
    threads (>600) and this without problem.<br>
    <br>
    I do not recall having suggested to increase that number and for
    what reason.<br>
    Usually 30 workers is a good enough value. It can create bootleneck
    if for some reason each operation is very long to satisfy and
    exhaust the number of workers. You can monitor the work queue:<br>
    <blockquote><tt>ldapsearch  -D "cn=directory manager" -w xxx -LLL -b
        "cn=monitor" -s base opsinitiated opscompleted</tt><br>
    </blockquote>
    <br>
    If opscompleted-opsinitiated remains close to threadnumber, then yes
    it would be valuable to increase it.<br>
    <br>
    The computation #client * #async_op_per_client sound an overkill.
    Even if all clients send at the exact same time all their requests,
    it is very likely that some common resource (db page, log,
    allocator...) will serialize them. If you monitor a need to increase
    the work, you would for example set it to 50, then monitor, then set
    it to 100, then monitor... until you find a good enough value.<br>
    Note the increasing the #thread, increases the memory footprint that
    will reduce the efficiency of file system cache and can increase the
    response time.<br>
    <br>
    <br>
    best regards<br>
    thierry <br>
    <br>
    <blockquote type="cite">
      <div dir="ltr">
        <div><br>
        </div>
        Thanks<br>
      </div>
      <div class="gmail_extra"><br>
        <div class="gmail_quote">On Mon, Sep 5, 2016 at 1:03 PM, thierry
          bordaz <span dir="ltr"><<a href="mailto:tbordaz@redhat.com" target="_blank">tbordaz@redhat.com</a>></span>
          wrote:<br>
          <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
            <div text="#000000" bgcolor="#FFFFFF"> <br>
              Hi Rakesh,<br>
              <br>
              Were you able to get a pstack or full stack with gdb (<a href="http://www.port389.org/docs/389ds/FAQ/faq.html#debugging-crashes" target="_blank"></a><a href="http://www.port389.org/docs/" target="_blank">http://www.port389.org/docs/</a>3<wbr>89ds/FAQ/faq.html#debugging-cr<wbr>ashes)
              when the server hangs ?<br>
              <br>
              If it happens with 500 threads as well as with 30, using
              30 threads is a better choice to debug this issue.<br>
              I will try to reproduce using 150 parallel 'ipa user-find
              p-testipa' commands<br>
              <br>
              Something I am unsure is if the CPU consumption stays high
              (you mentioned 340% CPU usage) as long as the hang happens
              or if after a suddent shot up to 340% (that marks the
              beginning of the hang) it drops and stay hanging ?<br>
              <br>
              thanks<br>
              thierry<br>
              <br>
              <div>On 09/04/2016 08:40 PM, Rakesh Rajasekharan wrote:<br>
              </div>
              <blockquote type="cite">
                <div dir="ltr">
                  <div>starce on the slapd process actually had this in
                    the output.. <br>
                    FUTEX_WAIT_PRIVATE<br>
                    <br>
                  </div>
                  and checking for the number of threads slapd had..
                  there were 5015 threads<br>
                  <div><br>
                    ps -efL|grep slapd|wc -l<br>
                    5015<br>
                    <br>
                    strace on most of the threads gave this output <br>
                    <br>
                    strace -p 67411<br>
                    Process 67411 attached<br>
                    futex(0x7f3f0226b41c, FUTEX_WAIT_PRIVATE, 1, NULL) =
                    -1 EAGAIN (Resource temporarily unavailable)<br>
                    futex(0x7f3f0226b41c, FUTEX_WAIT_PRIVATE, 2,
                    NULL^CProcess 67411 detached<br>
                    <br>
                    <br>
                    <br>
                    <br>
                  </div>
                </div>
                <div class="gmail_extra"><br>
                  <div class="gmail_quote">On Sun, Sep 4, 2016 at 5:34
                    PM, Rakesh Rajasekharan <span dir="ltr"><<a href="mailto:rakesh.rajasekharan@gmail.com" target="_blank"></a><a href="mailto:rakesh.rajasekharan@gmail.com" target="_blank">rakesh.rajasekharan@gmail.com</a><wbr>></span>
                    wrote:<br>
                    <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
                      <div dir="ltr">
                        <div>
                          <div>
                            <div>
                              <div>
                                <div>I have again got the issue of IPA
                                  hanging.. The issue came up when i
                                  tried to run ipa-client-isntall on 142
                                  clients simultaneously<br>
                                  <br>
                                  <br>
                                </div>
                                <div>None of the IPA commands are
                                  responding,  and I see this error<br>
                                  <br>
                                  ipa user-find p-testipa<br>
                                  ipa: ERROR: Insufficient access:
                                  SASL(-1): generic failure: GSSAPI
                                  Error: Unspecified GSS failure.  Minor
                                  code may provide more information (KDC
                                  returned error string: PROCESS_TGS)<br>
                                  <br>
                                   KRB5_TRACE=/dev/stdout kinit admin<br>
                                  [41178] 1472984115.233214: Getting
                                  initial credentials for <a href="mailto:admin@XYZ.COM" target="_blank"></a><a href="mailto:admin@XYZ.COM" target="_blank">admin@XYZ.COM</a><br>
                                  [41178] 1472984115.235257: Sending
                                  request (167 bytes) to <a href="http://XYZ.COM" target="_blank">XYZ.COM</a><br>
                                  [41178] 1472984115.235419: Initiating
                                  TCP connection to stream <a href="http://10.1.3.36:88" target="_blank">10.1.3.36:88</a><br>
                                  [41178] 1472984115.235685: Sending TCP
                                  request to stream <a href="http://10.1.3.36:88" target="_blank">10.1.3.36:88</a><br>
                                  [41178] 1472984120.238914: Received
                                  answer (174 bytes) from stream <a href="http://10.1.3.36:88" target="_blank">10.1.3.36:88</a><br>
                                  [41178] 1472984120.238925: Terminating
                                  TCP connection to stream <a href="http://10.1.3.36:88" target="_blank">10.1.3.36:88</a><br>
                                  [41178] 1472984120.238993: Response
                                  was from master KDC<br>
                                </div>
                                <div>[41<br>
                                  <br>
                                  <br>
                                </div>
                                <div>Running an ldapsearch to see the
                                  db.. does not give any results and
                                  just hangs there<br>
                                  <br>
                                  ldapsearch -x -D 'cn=Directory
                                  Manager' -W -s one -b
                                  'cn=kerberos,dc=xyz,dc=com'<br>
                                  Enter LDAP Password:<br>
                                  <br>
                                </div>
                                <div>even an ldapsearch -x does not
                                  respond<br>
                                </div>
                                <div>At this point, am sure that slapd
                                  is the one causing issues<br>
                                </div>
                                <div><br>
                                </div>
                                <div>Running an strace against the hung
                                  slapd itself seems to get stuck does
                                  not proceed after saying "attaching to
                                  process"<br>
                                  <br>
                                </div>
                                <div>From some others posts I read
                                  Thierry suggesting to increase the
                                  nsslapd-threadnumber value<br>
                                  <br>
                                </div>
                                <div>It was set to 30, I think that
                                  might be too low.<br>
                                  <br>
                                </div>
                                <div>I have raised it to  500<br>
                                </div>
                                <br>
                              </div>
                              <div>Now after restarting the service ..
                                ldapsearch starts responding.<br>
                              </div>
                              But running the test to add a sudden high
                              number of clients again left ns-slapd to
                              hung state<br>
                              <br>
                            </div>
                            When i attempted adding the clients.. the
                            ns-slapd cpu usage shot up to 340% and after
                            that ns-slapd stopped responding<br>
                            <br>
                          </div>
                          So now, atleast I know what might be causing
                          the issue and I can now easily reproduce it.<br>
                          <br>
                        </div>
                        <div>Is there a way I can make ns-slapd handle a
                          sudden bump in incoming request for
                          ipa-client-install<br>
                          <br>
                        </div>
                        <div>Thanks<span><font color="#888888"><br>
                            </font></span></div>
                        <span><font color="#888888">
                            <div>Rakesh<br>
                            </div>
                            <br>
                            <div>
                              <div>
                                <div>
                                  <div>
                                    <div>
                                      <div><br>
                                      </div>
                                      <div><br>
                                        <br>
                                        <br>
                                      </div>
                                    </div>
                                  </div>
                                </div>
                              </div>
                            </div>
                          </font></span></div>
                      <div class="gmail_extra"><br>
                        <div class="gmail_quote">
                          <div>
                            <div>On Mon, Aug 29, 2016 at 11:18 PM, Rich
                              Megginson <span dir="ltr"><<a href="mailto:rmeggins@redhat.com" target="_blank"></a><a href="mailto:rmeggins@redhat.com" target="_blank">rmeggins@redhat.com</a>></span>
                              wrote:<br>
                            </div>
                          </div>
                          <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
                            <div>
                              <div>
                                <div bgcolor="#FFFFFF" text="#000000"><span>
                                    <div>On 08/29/2016 10:53 AM, Rakesh
                                      Rajasekharan wrote:<br>
                                    </div>
                                    <blockquote type="cite">
                                      <div dir="ltr">
                                        <div>
                                          <div>Hi Thierry,<br>
                                            <br>
                                            My machine has 30GB RAM
                                            ..and  389-ds version is
                                            1.3.4<br>
                                            <br>
                                          </div>
                                          ldapsearch shows the values
                                          for nsslapd-cachememsize
                                          updated to 200MB.<br>
                                          <br>
                                          ldapsearch -LLL -o
                                          ldif-wrap=no -D "cn=directory
                                          manager" -w 'mypassword' -b
                                          'cn=userRoot,cn=ldbm
                                          database,cn=plugins,cn=config'<wbr>|grep

                                          nsslapd-cachememsize<br>
                                          nsslapd-cachememsize:
                                          209715200<br>
                                          <br>
                                          <br>
                                          So, it seems to have updated
                                          though seeing that
                                          warning(WARNING: ipaca: entry
                                          cache size 10485760B is less
                                          than db size 11599872B) in the
                                          log confuses me a bit.<br>
                                          <br>
                                        </div>
                                        <div>Thers one more entry that I
                                          found from the ldapsearch to
                                          be bit low<br>
                                          <br>
                                          nsslapd-dncachememsize:
                                          10485760<br>
                                          maxdncachesize: 10485760<br>
                                          <br>
                                        </div>
                                        <div>Should I update these as
                                          well to a higher value<br>
                                          <br>
                                        </div>
                                        <div>At the time when the issue
                                          happened, the memory usage as
                                          well as the overall load of
                                          the system was very low . <br>
                                          I will try reproducing the
                                          issue atleast in my QA
                                          env..probably by trying to
                                          mock  simultaneous parallel
                                          logins to a large number of
                                          hosts <br>
                                        </div>
                                      </div>
                                    </blockquote>
                                    <br>
                                  </span> To monitor your cache sizes,
                                  please use the dbmon.sh tool provided
                                  with your distro.  If that is not
                                  available with your particular distro,
                                  see <a href="https://github.com/richm/scripts/wiki/dbmon.sh" target="_blank">https://github.com/richm/scrip<wbr>ts/wiki/dbmon.sh</a>
                                  <div>
                                    <div><br>
                                      <br>
                                      <blockquote type="cite">
                                        <div dir="ltr">
                                          <div><br>
                                            <br>
                                          </div>
                                          <div>thanks<br>
                                          </div>
                                          <div>Rakesh<br>
                                          </div>
                                          <div><br>
                                          </div>
                                          <div><br>
                                          </div>
                                          <br>
                                        </div>
                                        <div class="gmail_extra"><br>
                                          <div class="gmail_quote">On
                                            Mon, Aug 29, 2016 at 8:16
                                            PM, thierry bordaz <span dir="ltr"><<a href="mailto:tbordaz@redhat.com" target="_blank"></a><a href="mailto:tbordaz@redhat.com" target="_blank">tbordaz@redhat.com</a>></span>
                                            wrote:<br>
                                            <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
                                              <div text="#000000" bgcolor="#FFFFFF"> Hi
                                                Rakesh,<br>
                                                <br>
                                                Those tuning may depend
                                                on the memory available
                                                on your machine. <br>
                                                nsslapd-cachememsize
                                                allows the entry cache
                                                to consume up to 200Mb
                                                but its memory footprint
                                                is known to go above. <br>
                                                200Mb both looks pretty
                                                good to me. How large is
                                                your machine ? What is
                                                your version of 389-ds ?<br>
                                                <br>
                                                Those warnings do not
                                                change your settings. It
                                                just raise that entry
                                                cache of 'ipaca' and
                                                'retrocl' are small but
                                                it is fine. The size of
                                                the entry cache is
                                                important mostly in
                                                userRoot.<br>
                                                You may double check the
                                                actual values, after
                                                restart, with ldapsearch
                                                on 'cn=userRoot,cn=ldbm
                                                database,cn=plugins,cn=config'
                                                and 'cn=config,cn=ldbm
                                                database,cn=plugins,cn=config'<wbr>.<br>
                                                <br>
                                                A step is to know what
                                                will be response time of
                                                DS to know if it is
                                                responsible of the hang
                                                or not.<br>
                                                The logs and possibly
                                                pstack during those
                                                intermittent hangs will
                                                help to determine that.<br>
                                                <br>
                                                regards<span><font color="#888888"><br>
                                                    thierry</font></span>
                                                <div>
                                                  <div><br>
                                                    <br>
                                                    <br>
                                                    <br>
                                                    <br>
                                                    <div>On 08/29/2016
                                                      04:25 PM, Rakesh
                                                      Rajasekharan
                                                      wrote:<br>
                                                    </div>
                                                    <blockquote type="cite">
                                                      <div dir="ltr">
                                                        <div>
                                                          <div>
                                                          <div>
                                                          <div>
                                                          <div>
                                                          <div>I tried
                                                          increasing the
                                                          nsslapd-dbcachesize

                                                          and
                                                          nsslapd-cachememsize
                                                          in my QA envs
                                                          to 200MB.<br>
                                                          <br>
                                                          </div>
                                                          However, in my
                                                          log files, I
                                                          still see this
                                                          message<br>
                                                          [29/Aug/2016:04:34:37

                                                          +0000] -
                                                          WARNING:
                                                          ipaca: entry
                                                          cache size
                                                          10485760B is
                                                          less than db
                                                          size
                                                          11599872B; We
                                                          recommend to
                                                          increase the
                                                          entry cache
                                                          size
nsslapd-cachememsize.<br>
                                                          [29/Aug/2016:04:34:37

                                                          +0000] -
                                                          WARNING:
                                                          changelog:
                                                          entry cache
                                                          size 2097152B
                                                          is less than
                                                          db size
                                                          441647104B; We
                                                          recommend to
                                                          increase the
                                                          entry cache
                                                          size
nsslapd-cachememsize.<br>
                                                          <br>
                                                          </div>
                                                          these are my
                                                          ldif files
                                                          that i used to
                                                          modify the
                                                          values<br>
                                                          modify entry
                                                          cache size<br>
                                                          cat
                                                          modify-cache-mem-size.ldif<br>
                                                          dn:
                                                          cn=userRoot,cn=ldbm
database,cn=plugins,cn=config<br>
                                                          changetype:
                                                          modify<br>
                                                          replace:
                                                          nsslapd-cachememsize<br>
                                                          nsslapd-cachememsize:

                                                          209715200<br>
                                                          <br>
                                                          modify db
                                                          cache size<br>
                                                          cat
                                                          modfy-db-cache-size.ldif<br>
                                                          dn:
                                                          cn=config,cn=ldbm
database,cn=plugins,cn=config<br>
                                                          changetype:
                                                          modify<br>
                                                          replace:
                                                          nsslapd-dbcachesize<br>
                                                          nsslapd-dbcachesize:

                                                          209715200<br>
                                                          <br>
                                                          </div>
                                                          After
                                                          modifying , i
                                                          restarted IPA
                                                          services<br>
                                                          <br>
                                                          </div>
                                                          Is there
                                                          anything else
                                                          that  I need
                                                          to take care
                                                          of as the logs
                                                          suggest its
                                                          still not
                                                          getting the
                                                          updated values<br>
                                                          <br>
                                                          </div>
                                                          Thanks<br>
                                                        </div>
                                                        Rakesh<br>
                                                      </div>
                                                      <div class="gmail_extra"><br>
                                                        <div class="gmail_quote">On

                                                          Mon, Aug 29,
                                                          2016 at 6:07
                                                          PM, Rakesh
                                                          Rajasekharan <span dir="ltr"><<a href="mailto:rakesh.rajasekharan@gmail.com" target="_blank"></a><a href="mailto:rakesh.rajasekharan@gmail.com" target="_blank">rakesh.rajasekharan@gmail.com</a><wbr>></span>
                                                          wrote:<br>
                                                          <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
                                                          <div dir="ltr">
                                                          <div>
                                                          <div>
                                                          <div>
                                                          <div>
                                                          <div>
                                                          <div>Hi
                                                          Thierry,<br>
                                                          <br>
                                                          </div>
                                                          Coz of the
                                                          issues we had
                                                          to revert back
                                                          to earlier
                                                          running
                                                          openldap in
                                                          production.<br>
                                                          <br>
                                                          </div>
                                                          I have now
                                                          done a few TCP
                                                          related
                                                          changes in
                                                          sysctl.conf
                                                          and have also
                                                          increased the
                                                          nsslapd-dbcachesize


                                                          and
                                                          nsslapd-cachememsize
                                                          to 200MB<br>
                                                          <br>
                                                          </div>
                                                          I will again
                                                          start
                                                          migrating
                                                          hosts back to
                                                          IPA and see if
                                                          I face the
                                                          earlier issue.<br>
                                                          <br>
                                                          </div>
                                                          I will update
                                                          back once I
                                                          have something<br>
                                                          <br>
                                                          <br>
                                                          </div>
                                                          Thanks,<br>
                                                          </div>
                                                          Rakesh<br>
                                                          <div>
                                                          <div>
                                                          <div>
                                                          <div><br>
                                                          <br>
                                                          </div>
                                                          </div>
                                                          </div>
                                                          </div>
                                                          </div>
                                                          <div>
                                                          <div>
                                                          <div class="gmail_extra"><br>
                                                          <div class="gmail_quote">On

                                                          Thu, Aug 25,
                                                          2016 at 2:17
                                                          PM, thierry
                                                          bordaz <span dir="ltr"><<a href="mailto:tbordaz@redhat.com" target="_blank"></a><a href="mailto:tbordaz@redhat.com" target="_blank">tbordaz@redhat.com</a>></span>
                                                          wrote:<br>
                                                          <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
                                                          <div text="#000000" bgcolor="#FFFFFF">
                                                          <div>
                                                          <div> <br>
                                                          <br>
                                                          <div>On
                                                          08/25/2016
                                                          10:15 AM,
                                                          Rakesh
                                                          Rajasekharan
                                                          wrote:<br>
                                                          </div>
                                                          <blockquote type="cite">
                                                          <div dir="ltr">
                                                          <div>All of
                                                          the
                                                          troubleshooting
                                                          seems fine.<br>
                                                          <br>
                                                          <br>
                                                          </div>
                                                          <div>However,
                                                          Running <a href="http://libconv.pl" target="_blank">libconv.pl</a> gives me this
                                                          output<br>
                                                          <br>
                                                          -----
                                                          Recommendations
                                                          -----<br>
                                                          <br>
                                                           1.  You have
                                                          unindexed
                                                          components,
                                                          this can be
                                                          caused from a
                                                          search on an
                                                          unindexed
                                                          attribute, or
                                                          your returned
                                                          results
                                                          exceeded the
                                                          allidsthreshold. 
                                                          Unindexed
                                                          components are
                                                          not
                                                          recommended.
                                                          To refuse
                                                          unindexed
                                                          searches,
                                                          switch
                                                          'nsslapd-require-index'
                                                          to 'on' under
                                                          your database
                                                          entry (e.g.
                                                          cn=UserRoot,cn=ldbm
database,cn=plugins,cn=config)<wbr>.<br>
                                                          <br>
                                                           2.  You have
                                                          a significant
                                                          difference
                                                          between binds
                                                          and unbinds. 
                                                          You may want
                                                          to investigate
                                                          this
                                                          difference.<br>
                                                          <br>
                                                          </div>
                                                          <div><br>
                                                          </div>
                                                          <div>I feel,
                                                          this could be
                                                          a pointer to
                                                          things going
                                                          slow.. and IPA
                                                          hanging. I
                                                          think i now
                                                          have something
                                                          that I can try
                                                          and nail down
                                                          this issue.<br>
                                                          <br>
                                                          On a sidenote,
                                                          I was earlier
                                                          running
                                                          openldap and
                                                          migrated over
                                                          to Freeipa, <br>
                                                          <br>
                                                          </div>
                                                          <div>Thanks<br>
                                                          </div>
                                                          <div>Rakesh<br>
                                                          </div>
                                                          <div><br>
                                                          <br>
                                                          </div>
                                                          </div>
                                                          <div class="gmail_extra"><br>
                                                          <div class="gmail_quote">On


                                                          Wed, Aug 24,
                                                          2016 at 12:38
                                                          PM, Petr
                                                          Spacek <span dir="ltr"><<a href="mailto:pspacek@redhat.com" target="_blank"></a><a href="mailto:pspacek@redhat.com" target="_blank">pspacek@redhat.com</a>></span>
                                                          wrote:<br>
                                                          <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span>On


                                                          23.8.2016
                                                          18:44, Rakesh
                                                          Rajasekharan
                                                          wrote:<br>
                                                          > I think
                                                          thers
                                                          something
                                                          seriously
                                                          wrong with my
                                                          system<br>
                                                          ><br>
                                                          > not able
                                                          to run any 
                                                          IPA commands<br>
                                                          ><br>
                                                          > klist<br>
                                                          > Ticket
                                                          cache:
                                                          KEYRING:persistent:0:0<br>
                                                          > Default
                                                          principal: <a href="mailto:admin@XYZ.COM" target="_blank"></a><a href="mailto:admin@XYZ.COM" target="_blank">admin@XYZ.COM</a><br>
                                                          ><br>
                                                          > Valid
                                                          starting     
                                                           Expires     
                                                                 
                                                          Service
                                                          principal<br>
                                                          >
                                                          2016-08-23T16:26:36 
                                                          2016-08-24T16:26:22 


                                                          krbtgt/<a href="mailto:XYZ.COM@XYZ.COM" target="_blank"></a><a href="mailto:XYZ.COM@XYZ.COM" target="_blank">XYZ.COM@XYZ.COM</a><br>
                                                          ><br>
                                                          ><br>
                                                          >
                                                          [root@prod-ipa-master-1a
                                                          :~] ipactl
                                                          status<br>
                                                          > Directory
                                                          Service:
                                                          RUNNING<br>
                                                          > krb5kdc
                                                          Service:
                                                          RUNNING<br>
                                                          > kadmin
                                                          Service:
                                                          RUNNING<br>
                                                          >
                                                          ipa_memcached
                                                          Service:
                                                          RUNNING<br>
                                                          > httpd
                                                          Service:
                                                          RUNNING<br>
                                                          >
                                                          pki-tomcatd
                                                          Service:
                                                          RUNNING<br>
                                                          > ipa-otpd
                                                          Service:
                                                          RUNNING<br>
                                                          > ipa:
                                                          INFO: The
                                                          ipactl command
                                                          was successful<br>
                                                          ><br>
                                                          ><br>
                                                          ><br>
                                                          >
                                                          [root@prod-ipa-master
                                                          :~] ipa
                                                          user-find
                                                          p-testuser<br>
                                                          > ipa:
                                                          ERROR:
                                                          Kerberos
                                                          error:
                                                          ('Unspecified
                                                          GSS failure. 
                                                          Minor code may<br>
                                                          > provide
                                                          more
                                                          information',
                                                          851968)/("Cannot


                                                          contact any
                                                          KDC for realm
                                                          '<br>
                                                          > <a href="http://XYZ.COM" rel="noreferrer" target="_blank">XYZ.COM</a>'",
                                                          -1765328228)<br>
                                                          </span></blockquote>
                                                          </div>
                                                          </div>
                                                          </blockquote>
                                                          <br>
                                                          </div>
                                                          </div>
                                                          Hi Rakesh,<br>
                                                          <br>
                                                          <blockquote>Having

                                                          a reproducible
                                                          test case
                                                          would you
                                                          rerun the
                                                          command above.<br>
                                                          During its
                                                          processing you
                                                          may monitor DS
                                                          process load
                                                          (top). If it
                                                          is high, you
                                                          may get some
                                                          pstacks of it.<br>
                                                          Also would you
                                                          attach the
                                                          part of DS
                                                          access logs
                                                          taken during
                                                          the command.<br>
                                                          <br>
                                                          regards<br>
                                                          thierry<br>
                                                          </blockquote>
                                                          <div>
                                                          <div>
                                                          <blockquote type="cite">
                                                          <div class="gmail_extra">
                                                          <div class="gmail_quote">
                                                          <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span>
                                                          ><br>
                                                          <br>
                                                          </span>This is
                                                          weird because
                                                          the server
                                                          seems to be
                                                          up.<br>
                                                          <br>
                                                          Please follow<br>
                                                          <a href="http://www.freeipa.org/page/Tr" target="_blank"></a><a href="http://www.freeipa.org/page/Tr" target="_blank">http://www.freeipa.org/page/Tr</a><wbr>oubleshooting#Authentication.2<wbr>FKerberos<br>
                                                          <br>
                                                          Petr^2 Spacek<br>
                                                          <div>
                                                          <div><br>
                                                          ><br>
                                                          ><br>
                                                          > Thanks<br>
                                                          ><br>
                                                          > Rakesh<br>
                                                          ><br>
                                                          > On Tue,
                                                          Aug 23, 2016
                                                          at 10:01 PM,
                                                          Rakesh
                                                          Rajasekharan
                                                          <<br>
                                                          > <a href="mailto:rakesh.rajasekharan@gmail.com" target="_blank"></a><a href="mailto:rakesh.rajasekharan@gmail.com" target="_blank">rakesh.rajasekharan@gmail.com</a>>


                                                          wrote:<br>
                                                          ><br>
                                                          >> i
                                                          changed the
                                                          loggin level
                                                          to 4 .
                                                          Modifying
                                                          nsslapd-accesslog-level<br>
                                                          >><br>
                                                          >> But,
                                                          the hang is
                                                          still there.
                                                          though I dont
                                                          see the
                                                          sigfault now<br>
                                                          >><br>
                                                          >><br>
                                                          >><br>
                                                          >><br>
                                                          >> On
                                                          Tue, Aug 23,
                                                          2016 at 9:02
                                                          PM, Rakesh
                                                          Rajasekharan
                                                          <<br>
                                                          >> <a href="mailto:rakesh.rajasekharan@gmail.com" target="_blank"></a><a href="mailto:rakesh.rajasekharan@gmail.com" target="_blank">rakesh.rajasekharan@gmail.com</a>>


                                                          wrote:<br>
                                                          >><br>
                                                          >>>
                                                          My disk was
                                                          getting filled
                                                          too fast<br>
                                                          >>><br>
                                                          >>>
                                                          logs under
                                                          /var/log/dirsrv
                                                          was coming
                                                          around 5 gb
                                                          quickly
                                                          filling up<br>
                                                          >>><br>
                                                          >>>
                                                          Is there a way
                                                          to make the
                                                          logging less
                                                          verbose<br>
                                                          >>><br>
                                                          >>><br>
                                                          >>><br>
                                                          >>>
                                                          On Tue, Aug
                                                          23, 2016 at
                                                          6:41 PM, Petr
                                                          Spacek <<a href="mailto:pspacek@redhat.com" target="_blank"></a><a href="mailto:pspacek@redhat.com" target="_blank">pspacek@redhat.com</a>>


                                                          wrote:<br>
                                                          >>><br>
                                                          >>>>


                                                          On 23.8.2016
                                                          15:07, Rakesh
                                                          Rajasekharan
                                                          wrote:<br>
                                                          >>>>>

                                                          I was able to
                                                          fix that may
                                                          be
                                                          temporarily...
                                                          when i checked
                                                          the<br>
                                                          >>>>


                                                          network..<br>
                                                          >>>>>

                                                          there was
                                                          another
                                                          process that
                                                          was running
                                                          and consuming
                                                          a lot of<br>
                                                          >>>>


                                                          network (<br>
                                                          >>>>>

                                                          i have no idea
                                                          who did that.
                                                          I need to
                                                          seriously
                                                          start
                                                          restricting<br>
                                                          >>>>


                                                          people<br>
                                                          >>>>>

                                                          access to this
                                                          machine )<br>
>>>>><br>
                                                          >>>>>

                                                          after killing
                                                          that
                                                          perfomance
                                                          improved
                                                          drastically<br>
>>>>><br>
                                                          >>>>>

                                                          But now,
                                                          suddenly I
                                                          started
                                                          experiencing
                                                          the same hang.<br>
>>>>><br>
                                                          >>>>>

                                                          This time , I
                                                          gert the
                                                          following
                                                          error when
                                                          checked dmesg<br>
>>>>><br>
                                                          >>>>>

                                                          [  301.236976]
                                                          ns-slapd[3124]:

                                                          segfault at 0
                                                          ip
                                                          00007f1de416951c
                                                          sp<br>
                                                          >>>>>

                                                          00007f1dee1dba70

                                                          error 4 in
                                                          libcos-plugin.so[7f1de4166000+<wbr>b000]<br>
                                                          >>>>>

                                                          [ 1116.248431]
                                                          TCP:
                                                          request_sock_TCP:
                                                          Possible SYN
                                                          flooding on
                                                          port 88.<br>
                                                          >>>>>

                                                          Sending
                                                          cookies. 
                                                          Check SNMP
                                                          counters.<br>
                                                          >>>>>

                                                          [11831.397037]
                                                          ns-slapd[22550]:

                                                          segfault at 0
                                                          ip
                                                          00007f533d82251c
                                                          sp<br>
                                                          >>>>>

                                                          00007f5347894a70

                                                          error 4 in
                                                          libcos-plugin.so[7f533d81f000+<wbr>b000]<br>
                                                          >>>>>

                                                          [11832.727989]
                                                          ns-slapd[22606]:

                                                          segfault at 0
                                                          ip
                                                          00007f6231eb951c
                                                          sp<br>
                                                          >>>>>

                                                          00007f623bf2ba70

                                                          error 4 in
                                                          libcos-plugin.so[7f6231eb6000+<wbr>b00<br>
>>>><br>
                                                          >>>>


                                                          Okay, this one
                                                          is serious.
                                                          The LDAP
                                                          server
                                                          crashed.<br>
>>>><br>
                                                          >>>>


                                                          1. Make sure
                                                          all your
                                                          packages are
                                                          up-to-date.<br>
>>>><br>
                                                          >>>>


                                                          Please see<br>
                                                          >>>>

                                                          <a href="http://directory.fedoraproject" target="_blank"></a><a href="http://directory.fedoraproject" target="_blank">http://directory.fedoraproject</a><wbr>.org/docs/389ds/FAQ/faq.html#d<br>
>>>>
ebugging-crashes<br>
                                                          >>>>


                                                          for further
                                                          instructions
                                                          how to debug
                                                          this.<br>
>>>><br>
                                                          >>>>


                                                          Petr^2 Spacek<br>
>>>><br>
>>>>><br>
                                                          >>>>>

                                                          and in
                                                          /var/log/dirsrv/example-com/er<wbr>rors<br>
>>>>><br>
                                                          >>>>>

                                                          [23/Aug/2016:12:49:36

                                                          +0000]
                                                          DSRetroclPlugin
                                                          -
                                                          delete_changerecord:<br>
                                                          >>>>


                                                          could<br>
                                                          >>>>>

                                                          not delete
                                                          change record
                                                          3291138 (rc:
                                                          32)<br>
                                                          >>>>>

                                                          [23/Aug/2016:12:49:36

                                                          +0000]
                                                          DSRetroclPlugin
                                                          -
                                                          delete_changerecord:<br>
                                                          >>>>


                                                          could<br>
                                                          >>>>>

                                                          not delete
                                                          change record
                                                          3291139 (rc:
                                                          32)<br>
                                                          >>>>>

                                                          [23/Aug/2016:12:49:36

                                                          +0000]
                                                          DSRetroclPlugin
                                                          -
                                                          delete_changerecord:<br>
                                                          >>>>


                                                          could<br>
                                                          >>>>>

                                                          not delete
                                                          change record
                                                          3291140 (rc:
                                                          32)<br>
                                                          >>>>>

                                                          [23/Aug/2016:12:49:36

                                                          +0000]
                                                          DSRetroclPlugin
                                                          -
                                                          delete_changerecord:<br>
                                                          >>>>


                                                          could<br>
                                                          >>>>>

                                                          not delete
                                                          change record
                                                          3291141 (rc:
                                                          32)<br>
                                                          >>>>>

                                                          [23/Aug/2016:12:49:36

                                                          +0000]
                                                          DSRetroclPlugin
                                                          -
                                                          delete_changerecord:<br>
                                                          >>>>


                                                          could<br>
                                                          >>>>>

                                                          not delete
                                                          change record
                                                          3291142 (rc:
                                                          32)<br>
                                                          >>>>>

                                                          [23/Aug/2016:12:49:36

                                                          +0000]
                                                          DSRetroclPlugin
                                                          -
                                                          delete_changerecord:<br>
                                                          >>>>


                                                          could<br>
                                                          >>>>>

                                                          not delete
                                                          change record
                                                          3291143 (rc:
                                                          32)<br>
                                                          >>>>>

                                                          [23/Aug/2016:12:49:36

                                                          +0000]
                                                          DSRetroclPlugin
                                                          -
                                                          delete_changerecord:<br>
                                                          >>>>


                                                          could<br>
                                                          >>>>>

                                                          not delete
                                                          change record
                                                          3291144 (rc:
                                                          32)<br>
                                                          >>>>>

                                                          [23/Aug/2016:12:49:36

                                                          +0000]
                                                          DSRetroclPlugin
                                                          -
                                                          delete_changerecord:<br>
                                                          >>>>


                                                          could<br>
                                                          >>>>>

                                                          not delete
                                                          change record
                                                          3291145 (rc:
                                                          32)<br>
                                                          >>>>>

                                                          [23/Aug/2016:12:49:50

                                                          +0000] - Retry
                                                          count exceeded
                                                          in delete<br>
                                                          >>>>>

                                                          [23/Aug/2016:12:49:50

                                                          +0000]
                                                          DSRetroclPlugin
                                                          -
                                                          delete_changerecord:<br>
                                                          >>>>


                                                          could<br>
                                                          >>>>>

                                                          not delete
                                                          change record
                                                          3292734 (rc:
                                                          51)<br>
>>>>><br>
>>>>><br>
                                                          >>>>>

                                                          Can  i do
                                                          something
                                                          about this
                                                          error.. I
                                                          treid to
                                                          restart ipa a
                                                          couple<br>
                                                          >>>>


                                                          of<br>
                                                          >>>>>

                                                          time but that
                                                          did not help<br>
>>>>><br>
                                                          >>>>>

                                                          Thanks<br>
                                                          >>>>>

                                                          Rakesh<br>
>>>>><br>
                                                          >>>>>

                                                          On Mon, Aug
                                                          22, 2016 at
                                                          2:27 PM, Petr
                                                          Spacek <<a href="mailto:pspacek@redhat.com" target="_blank"></a><a href="mailto:pspacek@redhat.com" target="_blank">pspacek@redhat.com</a>><br>
                                                          >>>>


                                                          wrote:<br>
>>>>><br>
                                                          >>>>>>

                                                          On 19.8.2016
                                                          19:32, Rakesh
                                                          Rajasekharan
                                                          wrote:<br>
                                                          >>>>>>>

                                                          I am running
                                                          my set up on
                                                          AWS cloud, and
                                                          entropy is low
                                                          at around<br>
                                                          >>>>


                                                          180 .<br>
>>>>>>><br>
                                                          >>>>>>>

                                                          I plan to
                                                          increase it bu
                                                          installing
                                                          haveged . But,
                                                          would low
                                                          entropy<br>
                                                          >>>>


                                                          by<br>
                                                          >>>>>>

                                                          any<br>
                                                          >>>>>>>

                                                          chance cause
                                                          this issue of
                                                          intermittent
                                                          hang .<br>
                                                          >>>>>>>

                                                          Also, the hang
                                                          is mostly
                                                          observed when
                                                          registering
                                                          around 20
                                                          clients<br>
                                                          >>>>>>>

                                                          together<br>
>>>>>><br>
                                                          >>>>>>

                                                          Possibly, I'm
                                                          not sure. If
                                                          you want to
                                                          dig into this,
                                                          I would do
                                                          this:<br>
                                                          >>>>>>

                                                          1. look what
                                                          process hangs
                                                          on client
                                                          (using pstree
                                                          command or so)<br>
                                                          >>>>>>

                                                          $ pstree<br>
>>>>>><br>
                                                          >>>>>>

                                                          2. look to
                                                          what server
                                                          and port is
                                                          the hanging
                                                          client
                                                          connected to<br>
                                                          >>>>>>

                                                          $ lsof -p
                                                          <PID of the
                                                          hanging
                                                          process><br>
>>>>>><br>
                                                          >>>>>>

                                                          3. jump to
                                                          server and see
                                                          what process
                                                          is bound to
                                                          the target
                                                          port<br>
                                                          >>>>>>

                                                          $ netstat -pn<br>
>>>>>><br>
                                                          >>>>>>

                                                          4. see where
                                                          the process if
                                                          hanging<br>
                                                          >>>>>>

                                                          $ strace -p
                                                          <PID of the
                                                          hanging
                                                          process><br>
>>>>>><br>
                                                          >>>>>>

                                                          I hope it
                                                          helps.<br>
>>>>>><br>
                                                          >>>>>>

                                                          Petr^2 Spacek<br>
>>>>>><br>
                                                          >>>>>>>

                                                          On Fri, Aug
                                                          19, 2016 at
                                                          7:24 PM,
                                                          Rakesh
                                                          Rajasekharan
                                                          <<br>
                                                          >>>>>>>

                                                          <a href="mailto:rakesh.rajasekharan@gmail.com" target="_blank"></a><a href="mailto:rakesh.rajasekharan@gmail.com" target="_blank">rakesh.rajasekharan@gmail.com</a>>


                                                          wrote:<br>
>>>>>>><br>
                                                          >>>>>>>>

                                                          yes there
                                                          seems to be
                                                          something
                                                          thats
                                                          worrying.. I
                                                          have faced
                                                          this<br>
                                                          >>>>


                                                          today<br>
                                                          >>>>>>>>

                                                          as well.<br>
                                                          >>>>>>>>

                                                          There are few
                                                          hosts around
                                                          280 odd left
                                                          and when i try
                                                          adding them<br>
                                                          >>>>


                                                          to<br>
                                                          >>>>>>

                                                          IPA<br>
                                                          >>>>>>>>

                                                          , the slowness
                                                          begins..<br>
>>>>>>>><br>
                                                          >>>>>>>>

                                                          all the ipa
                                                          commands like
                                                          ipa
                                                          user-find..
                                                          etc becomes
                                                          very slow in<br>
                                                          >>>>>>>>

                                                          responding.<br>
>>>>>>>><br>
                                                          >>>>>>>>

                                                          the SYNC_RECV
                                                          are not many
                                                          though just
                                                          around 80-90
                                                          and today that<br>
                                                          >>>>


                                                          was<br>
                                                          >>>>>>>>

                                                          around 20 only<br>
>>>>>>>><br>
>>>>>>>><br>
                                                          >>>>>>>>

                                                          I have for now
                                                          increased
                                                          tcp_max_syn_backlog
                                                          to 5000.<br>
                                                          >>>>>>>>

                                                          For now the
                                                          slowness seems
                                                          to have gone..
                                                          but I will do
                                                          a try<br>
                                                          >>>>


                                                          adding the<br>
                                                          >>>>>>>>

                                                          clients again
                                                          tomorrow and
                                                          see how it
                                                          goes<br>
>>>>>>>><br>
                                                          >>>>>>>>

                                                          Thanks<br>
                                                          >>>>>>>>

                                                          Rakesh<br>
>>>>>>>><br>
                                                          >>>>>>>>

                                                          The issues<br>
>>>>>>>><br>
                                                          >>>>>>>>

                                                          On Fri, Aug
                                                          19, 2016 at
                                                          12:58 PM, Petr
                                                          Spacek <<a href="mailto:pspacek@redhat.com" target="_blank"></a><a href="mailto:pspacek@redhat.com" target="_blank">pspacek@redhat.com</a>><br>
                                                          >>>>>>

                                                          wrote:<br>
>>>>>>>><br>
                                                          >>>>>>>>>

                                                          On 18.8.2016
                                                          17:23, Rakesh
                                                          Rajasekharan
                                                          wrote:<br>
                                                          >>>>>>>>>>

                                                          Hi<br>
>>>>>>>>>><br>
                                                          >>>>>>>>>>

                                                          I am migrating
                                                          to freeipa
                                                          from openldap
                                                          and have
                                                          around 4000<br>
                                                          >>>>


                                                          clients<br>
>>>>>>>>>><br>
                                                          >>>>>>>>>>

                                                          I had openned
                                                          a another
                                                          thread on
                                                          that, but
                                                          chose to start
                                                          a new<br>
                                                          >>>>


                                                          one<br>
                                                          >>>>>>>>>

                                                          here<br>
                                                          >>>>>>>>>>

                                                          as its a
                                                          separate issue<br>
>>>>>>>>>><br>
                                                          >>>>>>>>>>

                                                          I was able to
                                                          change the
                                                          nssslapd-maxdescriptors
                                                          adding an ldif<br>
                                                          >>>>


                                                          file<br>
>>>>>>>>>><br>
                                                          >>>>>>>>>>

                                                          cat
                                                          nsslapd-modify.ldif<br>
                                                          >>>>>>>>>>

                                                          dn: cn=config<br>
                                                          >>>>>>>>>>

                                                          changetype:
                                                          modify<br>
                                                          >>>>>>>>>>

                                                          replace:
                                                          nsslapd-maxdescriptors<br>
                                                          >>>>>>>>>>

                                                          nsslapd-maxdescriptors:

                                                          17000<br>
>>>>>>>>>><br>
                                                          >>>>>>>>>>

                                                          and running
                                                          the ldapmodify
                                                          command<br>
>>>>>>>>>><br>
                                                          >>>>>>>>>>

                                                          I have now
                                                          started moving
                                                          clients
                                                          running an
                                                          openldap to
                                                          Freeipa<br>
                                                          >>>>


                                                          and<br>
                                                          >>>>>>>>>

                                                          have<br>
                                                          >>>>>>>>>>

                                                          today moved
                                                          close to 2000
                                                          clients<br>
>>>>>>>>>><br>
                                                          >>>>>>>>>>

                                                          However, I
                                                          have noticed
                                                          that IPA hangs
intermittently.<br>
>>>>>>>>>><br>
                                                          >>>>>>>>>>

                                                          running a
                                                          kinit admin
                                                          returns the
                                                          below error<br>
                                                          >>>>>>>>>>

                                                          kinit: Generic
                                                          error (see
                                                          e-text) while
                                                          getting
                                                          initial<br>
                                                          >>>>


                                                          credentials<br>
>>>>>>>>>><br>
                                                          >>>>>>>>>>

                                                          from the
                                                          /var/log/messages,
                                                          I see this
                                                          entry<br>
>>>>>>>>>><br>
                                                          >>>>>>>>>> 

                                                          prod-ipa-master-int

                                                          kernel:
                                                          [104090.315801]
                                                          TCP:<br>
>>>>
request_sock_TCP:<br>
                                                          >>>>>>>>>>

                                                          Possible SYN
                                                          flooding on
                                                          port 88.
                                                          Sending
                                                          cookies. 
                                                          Check SNMP<br>
                                                          >>>>>>

                                                          counters.<br>
>>>>>>>>><br>
                                                          >>>>>>>>>

                                                          I would be
                                                          worried about
                                                          this message.
                                                          Maybe
                                                          kernel/firewall
                                                          is<br>
                                                          >>>>


                                                          doing<br>
                                                          >>>>>>>>>

                                                          something
                                                          fishy behind
                                                          your back and
                                                          blocking some
                                                          connections or<br>
                                                          >>>>


                                                          so.<br>
>>>>>>>>><br>
                                                          >>>>>>>>>

                                                          Petr^2 Spacek<br>
>>>>>>>>><br>
>>>>>>>>><br>
                                                          >>>>>>>>>>

                                                          Aug 18
                                                          13:00:01
                                                          prod-ipa-master-int
                                                          systemd[1]:
                                                          Started
                                                          Session<br>
                                                          >>>>


                                                          4885<br>
                                                          >>>>>>

                                                          of<br>
                                                          >>>>>>>>>>

                                                          user root.<br>
                                                          >>>>>>>>>>

                                                          Aug 18
                                                          13:00:01
                                                          prod-ipa-master-int
                                                          systemd[1]:
                                                          Starting
                                                          Session<br>
                                                          >>>>


                                                          4885<br>
                                                          >>>>>>

                                                          of<br>
                                                          >>>>>>>>>>

                                                          user root.<br>
                                                          >>>>>>>>>>

                                                          Aug 18
                                                          13:01:01
                                                          prod-ipa-master-int
                                                          systemd[1]:
                                                          Started
                                                          Session<br>
                                                          >>>>


                                                          4886<br>
                                                          >>>>>>

                                                          of<br>
                                                          >>>>>>>>>>

                                                          user root.<br>
                                                          >>>>>>>>>>

                                                          Aug 18
                                                          13:01:01
                                                          prod-ipa-master-int
                                                          systemd[1]:
                                                          Starting
                                                          Session<br>
                                                          >>>>


                                                          4886<br>
                                                          >>>>>>

                                                          of<br>
                                                          >>>>>>>>>>

                                                          user root.<br>
                                                          >>>>>>>>>>

                                                          Aug 18
                                                          13:02:40
                                                          prod-ipa-master-int
                                                          python[28984]:
ansible-command<br>
                                                          >>>>>>>>>

                                                          Invoked<br>
                                                          >>>>>>>>>>

                                                          with
                                                          creates=None
                                                          executable=None
                                                          shell=True
                                                          args=
                                                          removes=None<br>
                                                          >>>>>>>>>

                                                          warn=True<br>
                                                          >>>>>>>>>>

                                                          chdir=None<br>
                                                          >>>>>>>>>>

                                                          Aug 18
                                                          13:04:37
                                                          prod-ipa-master-int
                                                          sssd_be:
                                                          GSSAPI Error:<br>
                                                          >>>>


                                                          Unspecified<br>
                                                          >>>>>>>>>

                                                          GSS<br>
                                                          >>>>>>>>>>

                                                          failure. 
                                                          Minor code may
                                                          provide more
                                                          information
                                                          (KDC returned<br>
                                                          >>>>


                                                          error<br>
                                                          >>>>>>>>>>

                                                          string:
                                                          PROCESS_TGS)<br>
>>>>>>>>>><br>
                                                          >>>>>>>>>>

                                                          Could it be
                                                          possible that
                                                          its due to the
                                                          initial load
                                                          of adding<br>
                                                          >>>>


                                                          the<br>
                                                          >>>>>>>>>

                                                          clients<br>
                                                          >>>>>>>>>>

                                                          or is there
                                                          something else
                                                          that I need to
                                                          take care of.<br>
                                                          </div>
                                                          </div>
                                                          </blockquote>
                                                          </div>
                                                          <br>
                                                          </div>
                                                          <br>
                                                          <fieldset></fieldset>
                                                          <br>
                                                          </blockquote>
                                                          <br>
                                                          </div>
                                                          </div>
                                                          </div>
                                                          </blockquote>
                                                          </div>
                                                          <br>
                                                          </div>
                                                          </div>
                                                          </div>
                                                          </blockquote>
                                                        </div>
                                                        <br>
                                                      </div>
                                                    </blockquote>
                                                    <br>
                                                  </div>
                                                </div>
                                              </div>
                                            </blockquote>
                                          </div>
                                          <br>
                                        </div>
                                        <br>
                                        <fieldset></fieldset>
                                        <br>
                                      </blockquote>
                                      <p><br><span class="HOEnZb"><font color="#888888">
                                        <span><font color="#888888"> </font></span></font></span></p><span class="HOEnZb"><font color="#888888">
                                      <span><font color="#888888"> </font></span></font></span></div><span class="HOEnZb"><font color="#888888">
                                    <span><font color="#888888"> </font></span></font></span></div><span class="HOEnZb"><font color="#888888">
                                  <span><font color="#888888"> </font></span></font></span></div><span class="HOEnZb"><font color="#888888">
                                <span><font color="#888888"> <br>
                                  </font></span></font></span></div><span class="HOEnZb"><font color="#888888">
                              <span><font color="#888888">
                                </font></span></font></span></div><span class="HOEnZb"><font color="#888888">
                            <span><font color="#888888">
                                <span>--<br>
                                  Manage your subscription for the
                                  Freeipa-users mailing list:<br>
                                  <a href="https://www.redhat.com/mailman/listinfo/freeipa-users" rel="noreferrer" target="_blank">https://www.redhat.com/mailman<wbr>/listinfo/freeipa-users</a><br>
                                  Go to <a href="http://freeipa.org" rel="noreferrer" target="_blank">http://freeipa.org</a>
                                  for more info on the project<br>
                                </span></font></span></font></span></blockquote><span class="HOEnZb"><font color="#888888">
                          <span><font color="#888888"> </font></span></font></span></div><span class="HOEnZb"><font color="#888888">
                        <span><font color="#888888"> <br>
                          </font></span></font></span></div><span class="HOEnZb"><font color="#888888">
                      <span><font color="#888888"> </font></span></font></span></blockquote><span class="HOEnZb"><font color="#888888">
                    <span><font color="#888888"> </font></span></font></span></div><span class="HOEnZb"><font color="#888888">
                  <span><font color="#888888"> <br>
                    </font></span></font></span></div><span class="HOEnZb"><font color="#888888">
                <span><font color="#888888"> <br>
                    <fieldset></fieldset>
                    <br>
                  </font></span></font></span></blockquote><span class="HOEnZb"><font color="#888888">
              <br>
            </font></span></div><span class="HOEnZb"><font color="#888888">
          </font></span></blockquote><span class="HOEnZb"><font color="#888888">
        </font></span></div><span class="HOEnZb"><font color="#888888">
        <br>
      </font></span></div>
    </blockquote>
    <br>
  </div>

</blockquote></div><br></div>