From: | Jeff Janes <jeff(dot)janes(at)gmail(dot)com> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | pgsql-bugs(at)postgresql(dot)org |
Subject: | Re: BUG #6068: automatic analyze runs endlessly |
Date: | 2011-06-19 17:35:26 |
Message-ID: | BANLkTikDWPuJry7TUL7VK7_An5Nsrh=jVw@mail.gmail.com |
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Lists: | pgsql-bugs |
On 6/19/11, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> "Jeff Janes" <jeff(dot)janes(at)gmail(dot)com> writes:
>> Starting with commit b4b6923e03f4d29636a94f6f4cc2f5cf6298b8c8,
>> "Fix VACUUM so that it always updates pg_class.reltuples/relpages."
>
>> After running make installcheck, the tables regression.public.slow_emp4000
>> and regression.public.fast_emp4000 get analyzed once a minute even though
>> they have no activity. None of the other installcheck tables, just those
>> two.
>
>> This has no direct negative effect that I know of, but it seems to be a
>> worrying symptom that pg_class or some related entity may not be getting
>> updated correctly.
>
> Hmm ... seems worrisome, all right, but I don't see that happening here.
> At least I don't see any indication of it in
> pg_stat_all_tables.last_autoanalyze. Are you looking at that, or some
> other evidence? Do you have any nondefault settings?
Just log_autovacuum_min_duration=0
Both evidence and setting.
Cheers, Jeff
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