Re: Issues with OSX and SHMMAX?

From: Steve Atkins <steve(at)blighty(dot)com>
To: "pgsql-performance(at)postgresql(dot)org Performance" <pgsql-performance(at)postgresql(dot)org>
Subject: Re: Issues with OSX and SHMMAX?
Date: 2013-04-22 22:30:26
Message-ID: 1D0403C5-CA5C-4FE7-AB66-D0C6401509B3@blighty.com
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On Apr 22, 2013, at 11:19 AM, Josh Berkus <josh(at)agliodbs(dot)com> wrote:

> On 04/21/2013 02:33 PM, Evgeny Shishkin wrote:
>>
>> On Apr 22, 2013, at 1:29 AM, Josh Berkus <josh(at)agliodbs(dot)com> wrote:
>>
>>> Folks,
>>>
>>> I've heard a rumor that the most recent update of OSX "mountain lion"
>>> lowers the installed SHMMAX to 4MB, which prevents PostgreSQL from
>>> installing. Can anyone verify this?
>>>
>>
>> kern.sysv.shmmax: 4194304
>
> That would be 4MB. Can anyone else verify this?

It's the default setting on my 10.8.3 box. (I'm setting it higher in /etc/sysctl.conf
and have no problems, but it stopped postgres.app starting when I removed
that).

Cheers,
Steve

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