| From: | Vivek Khera <khera(at)kcilink(dot)com> |
|---|---|
| To: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: Buglist |
| Date: | 2003-08-21 04:07:31 |
| Message-ID: | x7wud73b7g.fsf@yertle.int.kciLink.com |
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| Lists: | pgsql-general pgsql-hackers |
>>>>> "TL" == Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> writes:
TL> Just nice'ing the VACUUM process is likely to be counterproductive
TL> because of locking issues (priority inversion). Though if anyone cares
TL> to try it on a heavily-loaded system, I'd be interested to hear the
TL> results...
tried it once. didn't make much difference except that vacuum took
longer than normal. i didn't see any deadlocks.
i actually figured out what my main problem was. vacuum every 6 hours
on my two busiest tables was taking longer than 6 hours when we were
very busy...
--
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Vivek Khera, Ph.D. Khera Communications, Inc.
Internet: khera(at)kciLink(dot)com Rockville, MD +1-240-453-8497
AIM: vivekkhera Y!: vivek_khera http://www.khera.org/~vivek/
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