Re: Hash join on int takes 8..114 seconds

От: Alvaro Herrera
Тема: Re: Hash join on int takes 8..114 seconds
Дата: ,
Msg-id: 20081121202036.GK5210@alvh.no-ip.org
(см: обсуждение, исходный текст)
Ответ на: Re: Hash join on int takes 8..114 seconds  ("Andrus")
Список: pgsql-performance

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Hash join on int takes 8..114 seconds  ("Andrus", )
 Re: Hash join on int takes 8..114 seconds  (PFC, )
  Re: Hash join on int takes 8..114 seconds  ("Andrus", )
 Re: Hash join on int takes 8..114 seconds  (Richard Huxton, )
  Re: Hash join on int takes 8..114 seconds  ("Andrus", )
   Re: Hash join on int takes 8..114 seconds  (Richard Huxton, )
    Re: Hash join on int takes 8..114 seconds  ("Andrus", )
   Re: Hash join on int takes 8..114 seconds  (PFC, )
    Re: Hash join on int takes 8..114 seconds  ("Andrus", )
     Re: Hash join on int takes 8..114 seconds  (, )
      Re: Hash join on int takes 8..114 seconds  ("Andrus", )
       Re: Hash join on int takes 8..114 seconds  (PFC, )
       Re: Hash join on int takes 8..114 seconds  (Alan Hodgson, )
       Re: Hash join on int takes 8..114 seconds  (Tomas Vondra, )
     Re: Hash join on int takes 8..114 seconds  (Richard Huxton, )
      Re: Hash join on int takes 8..114 seconds  ("Andrus", )
       Re: Hash join on int takes 8..114 seconds  (PFC, )
        Re: Hash join on int takes 8..114 seconds  ("Andrus", )
         Re: Hash join on int takes 8..114 seconds  (Alvaro Herrera, )
          Re: Hash join on int takes 8..114 seconds  ("Andrus", )
           Re: Hash join on int takes 8..114 seconds  (Alvaro Herrera, )
            Re: Hash join on int takes 8..114 seconds  ("Andrus", )
             Re: Hash join on int takes 8..114 seconds  (Alvaro Herrera, )
           Re: Hash join on int takes 8..114 seconds  (Tomas Vondra, )
      Re: Hash join on int takes 8..114 seconds  ("Andrus", )
       Re: Hash join on int takes 8..114 seconds  (Scott Carey, )
     Re: Hash join on int takes 8..114 seconds  (PFC, )
      Re: Hash join on int takes 8..114 seconds  (Tom Lane, )
       Re: Hash join on int takes 8..114 seconds  (PFC, )
      Re: Hash join on int takes 8..114 seconds  ("Andrus", )
       Re: Hash join on int takes 8..114 seconds  (PFC, )
        Re: Hash join on int takes 8..114 seconds  ("Andrus", )
         Re: Hash join on int takes 8..114 seconds  (Tomas Vondra, )
          Re: Hash join on int takes 8..114 seconds  ("Andrus", )
           Re: Hash join on int takes 8..114 seconds  (Tomas Vondra, )
         Re: Hash join on int takes 8..114 seconds  (Scott Carey, )
          Re: Hash join on int takes 8..114 seconds  ("Andrus", )
           Re: Hash join on int takes 8..114 seconds  (Tomas Vondra, )
            Re: Hash join on int takes 8..114 seconds  ("Andrus", )
             Re: Hash join on int takes 8..114 seconds  (, )
              Re: Hash join on int takes 8..114 seconds  ("Andrus", )

Andrus wrote:

>> So I gather you're not doing any vacuuming, eh?
>
> Log files for every day are full of garbage messages below.
> So I hope that vacuum is running well, isn't it ?

This does not really mean that autovacuum has done anything in the
databases.  If the times are consistently separated by 1 min, then it's
possible that it always exits without doing anything.

In such old a release we didn't have any decent logging mechanism in
autovacuum :-(  You can change log_min_messages to debug2 to see if it
actually does anything or not.

I suggest you connect to the problem database (and then to all others,
just to be sure) and run "vacuum" (no full).

--
Alvaro Herrera                                http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support


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