Re: PostgreSQL 9.3 abd CentOS 7 memory usage

From: Elías David <elias(dot)moreno(dot)tec(at)gmail(dot)com>
To: Jeff Frost <jeff(at)pgexperts(dot)com>
Cc: pgsql-admin <pgsql-admin(at)postgresql(dot)org>
Subject: Re: PostgreSQL 9.3 abd CentOS 7 memory usage
Date: 2014-10-12 23:55:00
Message-ID: CANNE3r1gU=V90PzEQZPvxLHF6cc+=Ps3+VgW-9h9cAbNFAq2QA@mail.gmail.com
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That's negative, zone_reclaim_mode is disabled in this server
On Oct 12, 2014 1:26 PM, "Jeff Frost" <jeff(at)pgexperts(dot)com> wrote:

>
> On Oct 12, 2014, at 10:33 AM, Elías David <elias(dot)moreno(dot)tec(at)gmail(dot)com>
> wrote:
>
> I know that shared memory usage in postgres was changed on 9.3 from sys v
> to posix so changing things like shmmax and the like aren't needed anymore
> (although we've trying changing those to no effect)
>
> We've even seen out of memory errors on postgres logs a few times when the
> server is just using something like 8GB out of 128GB of ram
>
> Has anyone experienced a similar issue or have seen weird memory usage
> patrons with CentOS 7?
>
>
> Any chance zone reclaim mode is enabled?
>
> cat /proc/sys/vm/zone_reclaim_mode
>

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