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cache state reset

From: David Lobron <dlobron(at)akamai(dot)com>
To: pgsql-general(at)postgresql(dot)org
Subject: cache state reset
Date: 2002-09-27 16:15:39
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-general

I've recently begun seeing an unusually high number of error messages
from my database, of this type:

NOTICE:  InvalidateSharedInvalid: cache state reset

I noticed in the archives that people have asked about this issue before, 
but my case seems a bit different, in that my errors do not seem related 
to any database vacuuming.  Tom Lane noted in one of his archived replies 
that these messages can sometimes be caused by applications with very long 
database access times.  I'm running a series of cron'ed Perl tools, each 
of which opens a connection to Postgres for up to 5 minutes.  Could this 
be the problem?  More generally: what is a cache state reset, and what 
might trigger one?

Thank you very much in advance.


David Lobron


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