From: Tom Lane <tgl@sss.pgh.pa.us>
To: Matteo Sgalaberni <sgala@sgala.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: database bloat,non removovable rows, slow query etc...
Date: Fri, 01 Sep 2006 10:43:30 -0400
Message-ID: <4027.1157121810@sss.pgh.pa.us> (raw)
In-Reply-To: <20060901123915.GT2266@sgala.com>
References: <20060901123915.GT2266@sgala.com>
Matteo Sgalaberni <sgala@sgala.com> writes:
> 22 daemons that have a persistent connection to this database(all
> connection are in "idle"(no transaction opened).
You may think that, but you are wrong.
> INFO: "cliente": found 0 removable, 29931 nonremovable row versions in 559 pages
> DETAIL: 29398 dead row versions cannot be removed yet.
The only way the above can happen is if there are some fairly old open
transactions. Looking in pg_stat_activity might help you identify the
culprit(s).
regards, tom lane
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To: pgsql-performance@postgresql.org
Cc: tgl@sss.pgh.pa.us, sgala@sgala.com
Subject: Re: database bloat,non removovable rows, slow query etc...
In-Reply-To: <4027.1157121810@sss.pgh.pa.us>
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