Re: ERROR: out of memory | with 23GB cached 7GB reserved on 30GB machine

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Montana Low <montanalow(at)gmail(dot)com>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: ERROR: out of memory | with 23GB cached 7GB reserved on 30GB machine
Date: 2014-10-21 22:35:10
Message-ID: 15197.1413930910@sss.pgh.pa.us
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Montana Low <montanalow(at)gmail(dot)com> writes:
> I'm running postgres-9.3 on a 30GB ec2 xen instance w/ linux kernel 3.16.3.
> I receive numerous Error: out of memory messages in the log, which are
> aborting client requests, even though there appears to be 23GB available in
> the OS cache.

Perhaps the postmaster is being started with a ulimit setting that
restricts process size?

regards, tom lane

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