Re: Shared memory corrupted?

From: Dmitry Morozovsky <marck(at)rinet(dot)ru>
To: Jeff Boes <jboes(at)nexcerpt(dot)com>
Cc: pgsql-admin(at)postgresql(dot)org
Subject: Re: Shared memory corrupted?
Date: 2003-11-01 09:41:24
Message-ID: 20031101124023.W30493@woozle.rinet.ru
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On Thu, 30 Oct 2003, Jeff Boes wrote:

JB> We are experiencing the following error, usually during our nightly
JB> delete-and-vacuum cycle (when there are very few other connections to
JB> the database):
JB>
JB> 2003-10-30 01:36:59 [25392] LOG: server process (pid 697) was
JB> terminated by signal 14
JB> 2003-10-30 01:36:59 [25392] LOG: terminating any other active server
JB> processes
JB> 2003-10-30 01:37:01 [1977] FATAL: The database system is in recovery mode
JB> 2003-10-30 01:37:08 [25392] LOG: all server processes terminated;
JB> reinitializing shared memory and semaphores
JB> 2003-10-30 01:37:09 [2856] FATAL: The database system is starting up
JB> 2003-10-30 01:37:09 [2855] LOG: database system was interrupted at
JB> 2003-10-30 01:26:13 EST
JB>
JB> The only clues we have are that the server processes interrupted by
JB> "signal 14" *seem* to be backends connected to Apache processes (on
JB> another server). But even that isn't certain, because of the difficulty
JB> in tracking down which process was doing what at the time.

Signal 14 is SIGALRM. Some kind of badly-behaving watchdog?

Sincerely,
D.Marck [DM5020, MCK-RIPE, DM3-RIPN]
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*** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck(at)rinet(dot)ru ***
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