| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
| Cc: | Steve Crawford <scrawford(at)pinpointresearch(dot)com>, pgsql-general(at)postgresql(dot)org |
| Subject: | Re: Vacuum-full very slow |
| Date: | 2007-04-25 16:48:53 |
| Message-ID: | 25112.1177519733@sss.pgh.pa.us |
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| Lists: | pgsql-general pgsql-hackers |
Alvaro Herrera <alvherre(at)commandprompt(dot)com> writes:
> I wonder, though, if you set maintenance_work_mem too high and are
> causing the OS to swap?
AFAIR, vacuum full pays no attention to maintenance_work_mem anyway.
If the data it needs doesn't fit in memory, you lose ...
regards, tom lane
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