We were running 7.4 under Cygwin with Windows 2000 Service Pack 4.

----- Original Message ----- From: "Jim C. Nasby" <[EMAIL PROTECTED]>
To: "Jean-Pierre Pelletier" <[EMAIL PROTECTED]>
Cc: <pgsql-bugs@postgresql.org>
Sent: Monday, October 03, 2005 6:00 PM
Subject: Re: [BUGS] Unreliable pg_stat_activity, Windows 2000, PostgreSQL 8.1 beta2


How were you running 7.4? Under cygwin or on a different OS?

On Mon, Oct 03, 2005 at 12:21:09PM -0400, Jean-Pierre Pelletier wrote:
Hi,

pg_stat_activity sometimes list no connections or a number of connections
much smaller than the number of postgres.exe processes.

We also have these messages in our PostgreSQL log approximately
20 times a day.

FATAL:  could not read from statistics collector pipe: No error
FATAL: could not write to statistics collector pipe: No connection could be
made because the target machine actively refused it.

or

FATAL:  could not read from statistics collector pipe: No error
LOG:  statistics collector process (PID 1628) was terminated by signal 1

It looks like the pg_stat_activity problem and the messages become
more frequent as the load/number of connection increases.

We were having the same pg_stat_activity problem and the same messages
with PostgreSQL 8.0.1 but didn't have the messages with PostgreSQL 7.4.1.
we don't know if pg_stat_activity was ok with 7.4.1 because we weren't using
it back then.

We are using Windows 2000 Server, Service Pack 4.

Thanks
Jean-Pierre Pelletier
e-djuster


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Jim C. Nasby, Sr. Engineering Consultant      [EMAIL PROTECTED]
Pervasive Software      http://pervasive.com    work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461


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