From: | Decibel! <decibel(at)decibel(dot)org> |
---|---|
To: | Medi Montaseri <montaseri(at)gmail(dot)com> |
Cc: | pgsql-admin(at)postgresql(dot)org |
Subject: | Re: postmaster restart on a different dataDir |
Date: | 2007-08-14 22:01:51 |
Message-ID: | 20070814220151.GU54135@nasby.net |
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Thread: | |
Lists: | pgsql-admin |
On Mon, Aug 13, 2007 at 04:05:37PM -0700, Medi Montaseri wrote:
> Hi,
>
> I am trying to measure startup time of postmaster. Say I have postmaster
Why?
> running on -D /tmp/d1 and would like to restart it on -D /tmp/d2.
>
> If I just say
> time pg_ctl restart -D /tmp/d2
> it will not produce an accurate result because pg_ctl will start postmaster
> in the background and return immediately but if you query the engine right
> away, you'll see that it is not ready yet as in
> time ( pg_ctl restart -D /tmp/d2 ; psql -l )
>
> If I call postmaster, then the command is blocking waiting for postmaster to
> exit.
So let it stop, start the timer, then start it again.
--
Decibel!, aka Jim Nasby decibel(at)decibel(dot)org
EnterpriseDB http://enterprisedb.com 512.569.9461 (cell)
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