From: Tom Lane <tgl@sss.pgh.pa.us>
To: Florian Helmberger <fh@25th-floor.com>
Cc: pgsql-admin@postgresql.org
Subject: Re: pg_class reltuples/relpages not updated by autovacuum/vacuum
Date: Tue, 24 May 2011 22:47:49 -0400
Message-ID: <25017.1306291669@sss.pgh.pa.us> (raw)
In-Reply-To: <4DD28F73.6010108@25th-floor.com>
References: <4DD28F73.6010108@25th-floor.com>
Florian Helmberger <fh@25th-floor.com> writes:
> I'm running a production database with PostgreSQL 9.0.3 (64-bit) on
> Debian 5.0.4 and have an issue with a TOAST table and far to frequent
> autovacuum runs.
> I think I've pinned the problem down to the values pg_class holds for
> the affected TOAST table:
> relpages | 433596
> reltuples | 1868538
> These values are significantly too low. Interestingly, the autovacuum
> logout reports the correct values:
> pages: 0 removed, 34788136 remain
> tuples: 932487 removed, 69599038 remain
> but these aren't stored in pg_class after each run.
That's exceedingly weird. Do the pg_stat_all_tables columns update
after autovacuums on that table?
regards, tom lane
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To: pgsql-admin@postgresql.org
Cc: tgl@sss.pgh.pa.us, fh@25th-floor.com
Subject: Re: pg_class reltuples/relpages not updated by autovacuum/vacuum
In-Reply-To: <25017.1306291669@sss.pgh.pa.us>
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