Re: max_fsm_pages

From: "Shoaib Mir" <shoaibmir(at)gmail(dot)com>
To: "Abu Mushayeed" <abumushayeed(at)yahoo(dot)com>
Cc: pgsql-admin(at)postgresql(dot)org
Subject: Re: max_fsm_pages
Date: 2007-04-02 09:55:44
Message-ID: bf54be870704020255g424914e6r6015fb3968207933@mail.gmail.com
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First of all run the VACUUM FULL ANALYZE and that should hopefully help you
get rid of this problem without changing the max_fsm_pages. Other then this
I will recommend you to have the autovacuuming process in place for proper
database maintenance.

--
Shoaib Mir
EnterpriseDB (www.enterprisedb.com)

On 4/1/07, Abu Mushayeed <abumushayeed(at)yahoo(dot)com> wrote:
>
> PG DB: 8.1.3
> 12 DB in the cluster
>
> When I do a full vacuum of the database cluster, at the end I am getting
> the message as follows:
>
> psql:dba_task.sql:1: INFO: free space map contains 8033993 pages in 1023
> relations
> DETAIL: A total of 8000000 page slots are in use (including overhead).
> 8201952 page slots are required to track all free space.
> Current limits are: 8000000 page slots, 32768 relations, using 49054 KB.
> psql:dba_task.sql:1: NOTICE: number of page slots needed (8201952)
> exceeds max_fsm_pages (8000000)
> HINT: Consider increasing the configuration parameter "max_fsm_pages" to
> a value over 8201952.
>
> My questions are:
>
> 1. With out increasing the max_fsm_pages, can I bring down the need for
> fsm_pages by deleting unnecessary tables?
> 2. As, the database grows the need for max_fsm_pages grows too, what is
> the best practice?
> 3. As a new postgres DBA, how should one manage this parameter?
>
> Thanks
> Abu Mushayeed
>
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