From: Tom Lane <tgl@sss.pgh.pa.us>
To: gleeco <gleeco@gmail.com>
Cc: pgsql-admin@postgresql.org
Subject: Re: vacuum toast loop?
Date: Tue, 10 Jan 2017 08:04:28 -0500
Message-ID: <30625.1484053468@sss.pgh.pa.us> (raw)
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gleeco <gleeco@gmail.com> writes:
> hello - i've a long-running manual vacuum on a big size table. It's many
> TB db that has some toast. What is odd is that it keeps looping back on
> the same toast / index, eg.
It's not looping ... it's filling up your maintenance_work_mem (which is
evidently set to 1GB) with dead TIDs and then pausing to do a cycle of
index cleaning. You have evidently let that table get, um, severely
bloated. Was autovacuum off?
regards, tom lane
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To: pgsql-admin@postgresql.org
Cc: tgl@sss.pgh.pa.us, gleeco@gmail.com
Subject: Re: vacuum toast loop?
In-Reply-To: <30625.1484053468@sss.pgh.pa.us>
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