Re: Issues with OSX and SHMMAX? - Mailing list pgsql-performance

On Apr 22, 2013, at 11:19 AM, Josh Berkus <josh@agliodbs.com> wrote:

> On 04/21/2013 02:33 PM, Evgeny Shishkin wrote:
>>
>> On Apr 22, 2013, at 1:29 AM, Josh Berkus <josh@agliodbs.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