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Re: max_fsm_relations

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Adam Radłowski <adamr(at)informatyka(dot)gdansk(dot)pl>
Cc: pgsql-admin(at)postgresql(dot)org
Subject: Re: max_fsm_relations
Date: 2008-11-30 17:51:22
Message-ID: 16624.1228067482@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-admin
=?ISO-8859-2?Q?Adam_Rad=B3owski?= <adamr(at)informatyka(dot)gdansk(dot)pl> writes:
> PostgreSQL 8.1.3 (windows), 8.1.9 - 8.1.10 (linux).
> I have databases, what are vacuumed using cron very regularry (vacuumdb 
> -a -f ...) and I know when should do this. Automatic vacuuming is off. 
> There are thousands of tables in one cluster (for ex. 10000). If I do 
> vacuuming manually, I can see the warning:
> NOTICE:  max_fsm_relations(1000) equals the number of relations checked
> HINT:  You have at least 1000 relations.  Consider increasing the 
> configuration parameter "max_fsm_relations".
> But all is working properly.

Only for small values of "properly".  You will be seeing table bloat
over time if you don't make the FSM large enough.

			regards, tom lane

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