What version of Postgresql are you running?
I believe this was a problem in 7.4.1 but fixed by 7.4.3 if I remember
correctly.
Mike
On Mon, 2004-08-02 at 22:08, Kevin Bartz wrote:
> I'm de-duping a 45-million-row table (about 4 gigs) by creating a new table
> with the unique rows of the first table (should be about 3 gigs). I'm on a
> 64-bit SuSE Linux with 2 gigs of memory and another gig of swap space. I
> tracked postmaster's use of memory and swap space after I run the query, and
> I noticed that as soon as postmaster first uses up all available memory and
> swap space, I get this:
>
> 2004-08-02 19:35:52 LOG: checkpoint record is at 7/4AA2F590
> 2004-08-02 19:35:52 LOG: redo record is at 7/4AA2F590; undo record is at
> 0/0; shutdown TRUE
> 2004-08-02 19:35:52 LOG: next transaction ID: 740; next OID: 116212470
> 2004-08-02 19:35:52 LOG: database system is ready
> 2004-08-02 19:38:04 LOG: server process (PID 25302) was terminated by
> signal 9
> 2004-08-02 19:38:04 LOG: terminating any other active server processes
> 2004-08-02 19:38:04 LOG: all server processes terminated; reinitializing
> 2004-08-02 19:38:04 FATAL: the database system is starting up
> 2004-08-02 19:38:04 LOG: database system was interrupted at 2004-08-02
> 19:35:52 PDT
> 2004-08-02 19:38:05 LOG: checkpoint record is at 7/4AA2F590
> 2004-08-02 19:38:05 LOG: redo record is at 7/4AA2F590; undo record is at
> 0/0; shutdown TRUE
> 2004-08-02 19:38:05 LOG: next transaction ID: 740; next OID: 116212470
> 2004-08-02 19:38:05 LOG: database system was not properly shut down;
> automatic recovery in progress
> 2004-08-02 19:38:05 LOG: redo starts at 7/4AA2F5D8
> 2004-08-02 19:38:05 LOG: record with zero length at 7/4AA4D5C0
> 2004-08-02 19:38:05 LOG: redo done at 7/4AA4B560
> 2004-08-02 19:38:07 LOG: database system is ready
>
> And the query never completes. This happens reproducibly and consistently. I
> like to think that two gigs should be enough memory. What is killing the
> postmaster process and how can I stop it? And, more importantly, is there
> any way I can run this query? Thanks for any help you can provide,
>
> Kevin
>
>
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