<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:st1="urn:schemas-microsoft-com:office:smarttags" xmlns="http://www.w3.org/TR/REC-html40"> <head> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"> <meta name=Generator content="Microsoft Word 11 (filtered medium)">  <title>Message</title> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="PersonName"/>  <style>  </style> </head> <body lang=EN-US link=blue vlink=purple> <div class=Section1> # /etc/security/limits.conf<o:p></o:p> #<o:p></o:p> #Each line describes a limit for a user in the form:<o:p></o:p> #<o:p></o:p> #<domain> <type> <item> <value><o:p></o:p> #<o:p></o:p> #Where:<o:p></o:p> #<domain> can be:<o:p></o:p> # - an user name<o:p></o:p> # - a group name, with @group syntax<o:p></o:p> # - the wildcard *, for default entry<o:p></o:p> #<o:p></o:p> #<type> can have the two values:<o:p></o:p> # - "soft" for enforcing the soft limits<o:p></o:p> # - "hard" for enforcing hard limits<o:p></o:p> #<o:p></o:p> #<item> can be one of the following:<o:p></o:p> # - core - limits the core file size (KB)<o:p></o:p> # - data - max data size (KB)<o:p></o:p> # - fsize - maximum filesize (KB)<o:p></o:p> # - memlock - max locked-in-memory address space (KB)<o:p></o:p> # - nofile - max number of open files<o:p></o:p> # - rss - max resident set size (KB)<o:p></o:p> # - stack - max stack size (KB)<o:p></o:p> # - cpu - max CPU time (MIN)<o:p></o:p> # - nproc - max number of processes<o:p></o:p> # - as - address space limit<o:p></o:p> # - maxlogins - max number of logins for this user<o:p></o:p> # - priority - the priority to run user process with<o:p></o:p> # - locks - max number of file locks the user can hold<o:p></o:p> #<o:p></o:p> #<domain> <type> <item> <value><o:p></o:p> #<o:p></o:p> <o:p> </o:p> * soft nofile 63536<o:p></o:p> * hard nofile 63536<o:p></o:p> testuser1 hard nofile 63536<o:p></o:p> testuser1 soft nofile 63536<o:p></o:p> # End of file<o:p></o:p> <o:p> </o:p> <div> <div class=MsoNormal align=center style='text-align:center'> <hr size=2 width="100%" align=center tabindex=-1> </div> From: rhn-users-bounces@redhat.com [mailto:rhn-users-bounces@redhat.com] On Behalf Of Doerbeck, Christoph Sent: Tuesday, May 24, 2005 10:38 AM To: <st1:PersonName w:st="on">Red Hat Network Users List</st1:PersonName> Subject: RE: [rhn-users] Ulimit and cron scheduler - too many open files error<o:p></o:p> </div> <o:p> </o:p> <div> please post your limits.conf<o:p></o:p> </div> <div> <o:p></o:p> </div> <div> <o:p></o:p> </div> <o:p> </o:p> Christoph <o:p></o:p> <o:p></o:p> -----Original Message----- From: <st1:PersonName w:st="on">Serge Bianda</st1:PersonName> [mailto:serge.bianda@appiancorp.com] Sent: Tuesday, May 24, 2005 10:28 AM To: rhn-users@redhat.com Subject: [rhn-users] Ulimit and cron scheduler - too many open files error<o:p></o:p> <blockquote style='margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'> <o:p> </o:p> We are trying to run a script using the cron scheduler. For the script to run, we had to increase the number of open file descriptors using "ulimit -n" to 63000 from 1024. We increased the file descriptor value in /etc/security/limits.conf. But crontab scheduler does not read the new increased value for the file descriptors and always errors out throwing - "too many open files" error. We tried to increase the value in the script that is scheduled using the cron job, but it looks like cron does not pick the new value even if it is set in the script. Are you aware of any global setting for the cron scheduler which will force it to have more open file descriptors? Note that when the script is ran from the command line apart from the cron scheduler it works fine and does not throw out errors stating “too many open files”.<o:p></o:p> </blockquote> </div> </body> </html>