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Re: Huge memory consumption during vacuum (v.8.0)

From: Oleg Bartunov <oleg(at)sai(dot)msu(dot)su>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Pgsql Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Huge memory consumption during vacuum (v.8.0)
Date: 2005-02-02 07:27:02
Message-ID: Pine.GSO.4.62.0502021025130.20328@ra.sai.msu.su (view raw or flat)
Thread:
Lists: pgsql-hackers
On Tue, 1 Feb 2005, Tom Lane wrote:

> Oleg Bartunov <oleg(at)sai(dot)msu(dot)su> writes:
>> I see that pgsql_tmp/ contains files, looks like clustered table.
>> What postmaster is doing if disk usage doesn't changed ?
>
> Most likely doing a disk-based merge sort ...
>

so, it uses 'work_mem' as a buffer ?


> 			regards, tom lane
>
> ---------------------------(end of broadcast)---------------------------
> TIP 9: the planner will ignore your desire to choose an index scan if your
>      joining column's datatypes do not match
>

 	Regards,
 		Oleg
_____________________________________________________________
Oleg Bartunov, sci.researcher, hostmaster of AstroNet,
Sternberg Astronomical Institute, Moscow University (Russia)
Internet: oleg(at)sai(dot)msu(dot)su, http://www.sai.msu.su/~megera/
phone: +007(095)939-16-83, +007(095)939-23-83

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