On Fri, Nov 8, 2013 at 8:16 PM, Sandeep Gupta <gupta.sandeep@xxxxxxxxx> wrote: > Hi, > > My postgres sessions, after being idle for 5 --6 hrs, crash on their own. > Sometimes with error messages sometimes without. The message I get appended > below. I was looking for suggestion to narrow down as to what could have > caused this problem. System log doesn't show anything. Just in case you don't know. PostgreSQL itself NEVER issues a kill -9 to a backend, and a crashing backend will show as a sig 11 not 9. While it's possible that, as Tom suggested, it's the OOM killer, it's also possible somebody got too smart and wrote a script to kill idle connections and used kill -9 instead of kill or kill -15 (default on linux for kill is -15). kill -9, much like a regular backend crash or panic, is bad because it causes all back ends to restart. This can kill server performance if it happens much. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
