Here is the output of pid postgres@symds-pg:~ $ cat /proc/15610/limits Limit Soft Limit Hard Limit Units Max cpu time unlimited unlimited seconds Max file size unlimited unlimited bytes Max data size unlimited unlimited bytes Max stack size 10485760 unlimited bytes Max core file size 0 0 bytes Max resident set unlimited unlimited bytes Max processes 16384 16384 processes Max open files 4096 4096 files Max locked memory 32768 32768 bytes Max address space unlimited unlimited bytes Max file locks unlimited unlimited locks Max pending signals 790527 790527 signals Max msgqueue size 819200 819200 bytes Max nice priority 0 0 Max realtime priority 0 0 Thanks Prabhjot Singh -----Original Message----- From: Jerry Sievers [mailto:gsievers19@xxxxxxxxxxx] Sent: Thursday, June 18, 2015 12:47 PM To: Sheena, Prabhjot Cc: ktm@xxxxxxxx; Will Platnick; pgsql-performance@xxxxxxxxxxxxxx; pgsql-general@xxxxxxxxxxxxxx Subject: Re: PGBOUNCER ISSUE PLEASE HELP(Slowing down the site) "Sheena, Prabhjot" <Prabhjot.Singh@xxxxxxxxxxxxxx> writes: > Hi Ken/ Will > > I have checked the ulimit value and we are nowhere hitting the max > 4096 that we have currently set. Is there any other explanation why > we should be thinking of bumping it to like ulimit -n 50000 ( Add > ulimit -n 50000 to the start of whatever you use to start pgbouncer > (init script, etc..)) even though we are not reaching 4096 max value If I can assume you're running on linux, best you get limits readout from... /proc/$PID-of-bouncer-process/limits Best not to trust that run time env of interactive shell is same as where bouncer launched from. FWIW > Regards > Prabhjot Singh > > > > -----Original Message----- > From: ktm@xxxxxxxx [mailto:ktm@xxxxxxxx] > Sent: Thursday, June 18, 2015 11:10 AM > To: Sheena, Prabhjot > Cc: pgsql-performance@xxxxxxxxxxxxxx; pgsql-general@xxxxxxxxxxxxxx > Subject: Re: PGBOUNCER ISSUE PLEASE HELP(Slowing down the > site) > > On Thu, Jun 18, 2015 at 05:41:01PM +0000, Sheena, Prabhjot wrote: >> Here is the output of OS limits >> >> postgres@symds-pg:~ $ ulimit -a >> >> core file size (blocks, -c) 0 >> data seg size (kbytes, -d) unlimited >> scheduling priority (-e) 0 >> file size (blocks, -f) unlimited >> pending signals (-i) 790527 >> max locked memory (kbytes, -l) 32 >> max memory size (kbytes, -m) unlimited >> open files (-n) 4096 >> pipe size (512 bytes, -p) 8 >> POSIX message queues (bytes, -q) 819200 >> real-time priority (-r) 0 >> stack size (kbytes, -s) 10240 >> cpu time (seconds, -t) unlimited >> max user processes (-u) 16384 >> virtual memory (kbytes, -v) unlimited >> file locks (-x) unlimited >> >> >> Thanks >> Prabhjot >> > > I would bump your open files as was suggested in your pgbouncer start script. > > Regards, > Ken -- Jerry Sievers Postgres DBA/Development Consulting e: postgres.consulting@xxxxxxxxxxx p: 312.241.7800 -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance