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Re: degenerate performance on one server of 3

From: Tom Lane
Subject: Re: degenerate performance on one server of 3
Date: ,
Msg-id: 25083.1244063723@sss.pgh.pa.us
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In response to: Re: degenerate performance on one server of 3  (Erik Aronesty)
List: pgsql-performance

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degenerate performance on one server of 3  (Erik Aronesty, )
 Re: degenerate performance on one server of 3  (Tom Lane, )
  Re: degenerate performance on one server of 3  (Craig Ringer, )
   Re: degenerate performance on one server of 3  (Tom Lane, )
    Re: degenerate performance on one server of 3  (Erik Aronesty, )
     Re: degenerate performance on one server of 3  (Tom Lane, )
      Re: degenerate performance on one server of 3  (Erik Aronesty, )
       Re: degenerate performance on one server of 3  (Tom Lane, )
       Re: degenerate performance on one server of 3  (Reid Thompson, )
        Re: degenerate performance on one server of 3  (Erik Aronesty, )
         Re: degenerate performance on one server of 3  (Robert Haas, )
          Re: degenerate performance on one server of 3  (Scott Carey, )
         Re: degenerate performance on one server of 3  (Scott Carey, )
          Re: degenerate performance on one server of 3  (Erik Aronesty, )
         Re: degenerate performance on one server of 3  (Robert Haas, ) 
Erik Aronesty <> writes:
> I think, perhaps, autovac wasn't running on that machine.
> Is there any way to check to see if it's running?

> I have enabled all the options , and I know it's running on my other
> servers because I see

> LOG: autovacuum....  entries (a profusion of them)

> I suspect, perhaps, that it's just not showing up in the log since my
> 8.2 BSD box came with different settings by default.

8.2 has far crummier support for logging what autovacuum is doing than
8.3 does :-(.  The settings you show should mean that it's running, but
the only way to check specifically is to crank log_min_messages way up,
which will clutter your log with a lot of useless noise along with
autovacuum's messages.

            regards, tom lane

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