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@ 2006-09-12 19:33 jallgood@the-allgoods.net
  2006-09-13 06:35 ` Re: Jim C. Nasby <jim@nasby.net>
  0 siblings, 1 reply; 2+ messages in thread

From: jallgood@the-allgoods.net @ 2006-09-12 19:33 UTC (permalink / raw)
  To: pgsql-performance

Hello All

I am getting this message in my log files for my database.
 
LOG: out of file descriptors: Too many open files; release and retry.

At some point the memomy didn't get released and the postmaster reset itself terminating all client connections. I am not sure what direction to go. I can increase the file-max in the kernel but it looks reasonably sized already . Or decrease the max_file_per_process. Has anyone on the list encountered this issue. I am running Postgres 7.4.7.


Thanks

John Allgood



^ permalink  raw  reply  [nested|flat] 2+ messages in thread

* Re:
  2006-09-12 19:33 (no subject) jallgood@the-allgoods.net
@ 2006-09-13 06:35 ` Jim C. Nasby <jim@nasby.net>
  0 siblings, 0 replies; 2+ messages in thread

From: Jim C. Nasby @ 2006-09-13 06:35 UTC (permalink / raw)
  To: jallgood@the-allgoods.net; +Cc: pgsql-performance

On Tue, Sep 12, 2006 at 03:33:08PM -0400, jallgood@the-allgoods.net wrote:
> Hello All
> 
> I am getting this message in my log files for my database.
>  
> LOG: out of file descriptors: Too many open files; release and retry.
> 
> At some point the memomy didn't get released and the postmaster reset itself terminating all client connections. I am not sure what direction to go. I can increase the file-max in the kernel but it looks reasonably sized already . Or decrease the max_file_per_process. Has anyone on the list encountered this issue. I am running Postgres 7.4.7.

PostgreSQL could be using somewhere around as much as
max_files_per_process * ( max_connections + 5 ), so make sure that
matches file-max (the + 5 is because there are non-connection processes
such as the bgwriter).

If that looks OK, some file descriptors might have been left around from
the crash... I know this can happen with shared memory segments. It
normally won't happen with file descriptors, but perhaps it is possible.
If that's the case, a reboot would certainly fix it.

BTW, you should upgrade to the latest 7.4 release.
-- 
Jim Nasby                                            jim@nasby.net
EnterpriseDB      http://enterprisedb.com      512.569.9461 (cell)



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