| From: | Guillaume Lelarge <guillaume(at)lelarge(dot)info> |
|---|---|
| To: | Patric de Waha <lists(at)p-dw(dot)com> |
| Cc: | "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>, pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: Vacuum full considered useful ;) |
| Date: | 2007-07-14 16:34:18 |
| Message-ID: | 4698FB0A.4070502@lelarge.info |
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| Lists: | pgsql-performance |
Joshua D. Drake a écrit :
>
>> No wonder, I got IO problems with such a fragmentation.
>>
>> For people not very familiar with postgres especially those coming
>> from mysql,
>> i'd recommend paying attention to this.
>
> Definitely. The problem here is that you just aren't vacuuming enough,
> not that you didn't vacuum full. I would suggest reviewing autovacuum
> and seeing if that will help you.
>
And paying attention to the max_fsm_pages setting. A value too low won't
help vacuum's work.
Regards.
--
Guillaume.
http://www.postgresqlfr.org
http://docs.postgresqlfr.org
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