Re: SIGUSR1 pingpong between master na autovacum launcher causes crash

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
Cc: Zdenek Kotala <Zdenek(dot)Kotala(at)Sun(dot)COM>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: SIGUSR1 pingpong between master na autovacum launcher causes crash
Date: 2009-08-24 18:10:51
Message-ID: 26794.1251137451@sss.pgh.pa.us
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Alvaro Herrera <alvherre(at)commandprompt(dot)com> writes:
> Tom Lane wrote:
>> Yeah, I added that recently to try to detect postmaster children
>> that exit without cleaning up properly. I seem to have missed this
>> error case :-(. Actually it looks like fork failure for regular
>> backends gets it wrong too :-( :-( --- would you please also add one
>> in the pid<0 path in BackendStartup? I think this logic is in 8.4
>> too, in which case it'll need to be back-patched.

> And this one too.

Almost right --- we only want to release for non-dead_end children.
I fixed that part.

regards, tom lane

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