>>>>> "TL" == Tom Lane <[EMAIL PROTECTED]> 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: [EMAIL PROTECTED]       Rockville, MD       +1-240-453-8497
AIM: vivekkhera Y!: vivek_khera   http://www.khera.org/~vivek/

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