Re: How overcome wait for vacuum full?

From: Nick Urbanik <nicku(at)nicku(dot)org>
To: pgsql-admin(at)postgresql(dot)org
Subject: Re: How overcome wait for vacuum full?
Date: 2007-05-16 01:20:52
Message-ID: 20070516012052.GC16310@nicku.org
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Dear Alvaro,

On 15/05/07 21:12 -0400, Alvaro Herrera wrote:
>Nick Urbanik wrote:
>> On 15/05/07 18:53 -0400, Alvaro Herrera wrote:
>> >Instead of waiting a month for the time when you can take the
>> >application offline (thus accumulating a month's worth of dead tuples),
>> >run a non-full vacuum more often (say, once a day or more). It doesn't
>> >lock the table so the app can continue to be online while it runs.
>>
>> Yes, it is vacuumed non-full regularly. However, for some reason,
>> only a full vacuum will recover the space.
>
>You probably need to better configure the FSM settings. See
>fsm_max_pages in the docs.

This is probably the critical piece of information we need to prevent
the need for another sleepless night and an outage! Thank you.
--
Nick Urbanik RHCE http://nicku.org nicku(at)nicku(dot)org
GPG: 7FFA CDC7 5A77 0558 DC7A 790A 16DF EC5B BB9D 2C24 ID: BB9D2C24

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