[Freeipa-users] lock table errors

[Ludwig Krispenz]

On 02/23/2016 03:02 PM, Andy Thompson wrote:
> Came across one of my replicas this morning with the following in the error log
>
> [20/Feb/2016:17:23:38 -0500] - libdb: BDB2055 Lock table is out of available lock entries
> [20/Feb/2016:17:23:38 -0500] entryrdn-index - _entryrdn_delete_key: Deleting C1 failed; Cannot allocate memory(12)
> [20/Feb/2016:17:23:38 -0500] - database index operation failed BAD 1031, err=12 Cannot allocate memory
> [20/Feb/2016:17:23:38 -0500] - index_del_entry(changenumber=1328662,cn=changelog, 0x26) failed (12)
> [20/Feb/2016:17:23:38 -0500] DSRetroclPlugin - delete_changerecord: could not delete change record 1328662 (rc: 1)
> [20/Feb/2016:17:23:38 -0500] - libdb: BDB2055 Lock table is out of available lock entries
> [20/Feb/2016:17:23:38 -0500] entryrdn-index - _entryrdn_get_elem: Failed to position cursor at the key: 1328666: Cannot allocate memory(12)
> [20/Feb/2016:17:23:38 -0500] entryrdn-index - _entryrdn_delete_key: Failed to position cursor at the key: 1328666: Cannot allocate memory(12)
> [20/Feb/2016:17:23:38 -0500] - libdb: BDB2055 Lock table is out of available lock entries
> [20/Feb/2016:17:23:38 -0500] - database index operation failed BAD 1031, err=12 Cannot allocate memory
> [20/Feb/2016:17:23:38 -0500] - index_del_entry(changenumber=1328663,cn=changelog, 0x26) failed (12)
> [20/Feb/2016:17:23:38 -0500] NSMMReplicationPlugin - changelog program - _cl5CompactDBs: failed to compact 5f1d2b12-cf1411e4-b055ba8a-f4b484f7; db error - 12 Cannot allocate memory
> [20/Feb/2016:17:23:38 -0500] DSRetroclPlugin - delete_changerecord: could not delete change record 1328663 (rc: 1)
> [20/Feb/2016:17:23:41 -0500] ldbm_back_delete - conn=0 op=0 [retry: 1] No original_tombstone for changenumber=1330335,cn=changelog!!
>
> And then nothing.  Was troubleshooting some clients that were having issues resolving some trusted domain users.
>
> I restarted IPA and it rolled through a few thousand missing change records
>
> 23/Feb/2016:08:39:34 -0500] DSRetroclPlugin - delete_changerecord: could not delete change record 1328696 (rc: 32)
>
> Any thoughts as to what might have caused the lock table errors?
in BerkeleyDB this means that the number of pages which would have to be 
locked in one transaction exceeds the configured number of locks. This 
could happen if eg a large group is deleted and for each member of the 
group inside the same transaction the memberof attribute has to be modified
>
> Thanks
>
> -andy
>
>
>
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