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List:       pgsql-bugs
Subject:    Re: [BUGS] pg_listener entries deleted under heavy NOTIFY load only on Windows
From:       Tom Lane <tgl () sss ! pgh ! pa ! us>
Date:       2009-01-30 15:18:28
Message-ID: 8699.1233328708 () sss ! pgh ! pa ! us
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"Marshall, Steve" <smarshall@wsi.com> writes:
> The solution that seems to work is to call CallNamedPipe repeatedly in a 
> loop if it fails.

Seems a bit nervous-making, since there's no principled way to know how
many retries to try.

> I also notice that signals that should fail, do fail.  For example, 
> signal 30 seems to be regularly sent to pid 1, and this fails in both 
> the orignal code and my modified version.

That's probably this bug:
http://archives.postgresql.org/pgsql-bugs/2008-11/msg00077.php
http://archives.postgresql.org/pgsql-committers/2008-11/msg00132.php

It shouldn't be happening, but it does offer a convenient test case that
your patch still fails when it should fail ;-)

			regards, tom lane

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