Re: Database server crash ! URGENT !

From: Justin Clift <justin(at)postgresql(dot)org>
To: Sunit Bhatia <sunit_bhatia(at)hotmail(dot)com>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: Database server crash ! URGENT !
Date: 2001-11-15 03:47:41
Message-ID: 3BF33ADD.8E4FD76F@postgresql.org
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Hi Sunit,

PostgreSQL 7.1.3 has a few bugfixes which make it a better choice than
7.1.1, if you can upgrade it's a good move.

Also, the "-B 5-" looks interesting. I'm not sure what the - on the end
of the 5 will do, it probably won't help though.

Apart from this, I'll defer to the guys with more experience debugging
these kinds of problems.

Regards and best wishes,

Justin Clift

Sunit Bhatia wrote:
>
> Hi all,
>
> I'm running Postgresql 7.1.1 on Solaris and mostly uses JDBC Driver to
> connect to the Database.
>
> Recently I'm seeing very weird behaviour, Database Server automatically
> shuts down and when I restart it, it again shuts down as soon as I start it
> or sometimes it shuts down as soon as I try to establish the connection. I t
> happens 3-4 times and after that it again becomes stable and would run for
> days without any problems. I've seen this in 2-3 production systems.
>
> Here is how I'm starting the server.
> 'postmaster -B 5- -N 25 -D/usr/local/pgsql/data -i'
>
> Here is what I see on the console on two different instances
>
> First Instance:
> Sun Microsystems Inc. SunOS 5.7 Generic October 1998
> stty: : No such device or address
> DEBUG: database system was shut down at 2000-10-17 21:04:30 PDT
> DEBUG: CheckPoint record at (0, 34075216)
> DEBUG: Redo record at (0, 34075216); Undo record at (0, 0); Shutdown TRUE
> DEBUG: NextTransactionId: 21473; NextOid: 68943
> DEBUG: database system is in production state
> Fast Shutdown request at Tue Oct 17 21:40:23 2000
> DEBUG: shutting down
> DEBUG: database system is shut down
> ******************************************
>
> Second Instance:
> Sun Microsystems Inc. SunOS 5.7 Generic October 1998
> stty: : No such device or address
> DEBUG: database system was interrupted at 2000-10-17 05:07:20 PDT
> DEBUG: CheckPoint record at (0, 33362784)
> DEBUG: Redo record at (0, 33362784); Undo record at (0, 0); Shutdown TRUE
> DEBUG: NextTransactionId: 21144; NextOid: 60751
> DEBUG: database system was not properly shut down; automatic recovery in
> progress...
> DEBUG: redo starts at (0, 33362848)
> DEBUG: ReadRecord: record with zero len at (0, 34075152)
> DEBUG: redo done at (0, 34075112)
> DEBUG: database system is in production state
> pq_recvbuf: unexpected EOF on client connection
> pq_recvbuf: unexpected EOF on client connection
> /usr/local/pgsql/bin/postmaster: dumpstatus:
> /usr/local/pgsql/bin/postmaster: dumpstatus:
> Fast Shutdown request at Tue Oct 17 21:04:28 2000
> Aborting any active transaction...
> FATAL 1: This connection has been terminated by the administrator.
> FATAL 1: This connection has been terminated by the administrator.
> DEBUG: shutting down
> DEBUG: MoveOfflineLogs: remove 0000000000000001
> DEBUG: database system is shut down
> ********************************************
>
> I tried following precautions/solutions:
>
> * I tried to make sure that I properly shut down the database server, but it
> happens even if the last shutdown was 'Fast Shutdown'.
> * I issue 'VACCUM' command, every time my application (which is built on top
> of JDBC) starts. and I do it automatically once in 24 hrs.
> But I see this problem on those systems too, where I do auto VACUUM.
>
> Can somebody suggest how to debug this problem or if somebody has
> experienced this before !!
>
> Also please tell what is the meaning of 'Redo Record at..' messages printed
> on the console.
>
> thanks
> Sunit
>
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