Re: Establishing a local connection to PostgreSQL 9.6 takes seconds

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Marcin Barczynski <mbarczynski(at)starfishstorage(dot)com>
Cc: pgsql-general(at)lists(dot)postgresql(dot)org
Subject: Re: Establishing a local connection to PostgreSQL 9.6 takes seconds
Date: 2021-06-16 14:10:11
Message-ID: 646103.1623852611@sss.pgh.pa.us
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Marcin Barczynski <mbarczynski(at)starfishstorage(dot)com> writes:
> It's always /opt/prod/pg/9.6/base/18370/1108887031. Unfortunately, no trace
> of it in pg_class:

It's probably a mapped system catalog, which will have relfilenode = 0.
Try

SELECT relname FROM pg_class WHERE pg_relation_filenode(oid) = 1108887031;

My guess is that whichever catalog it is is badly bloated.

regards, tom lane

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