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Re: can't stop autovacuum by HUP'ing the server

From: Dave Cramer <pg(at)fastcrypt(dot)com>
To: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: can't stop autovacuum by HUP'ing the server
Date: 2008-08-25 11:15:04
Message-ID: 6EC5FAF6-82CF-4F91-908F-1479E7B392A5@fastcrypt.com (view raw or flat)
Thread:
Lists: pgsql-hackers
On 24-Aug-08, at 10:17 PM, Alvaro Herrera wrote:

> Hi Dave,
>
> Dave Cramer wrote:
>> I'd like to stop autovac by changing the conf file then sending the
>> server a HUP
>>
>> This "appears" to work, the logs show autovac terminated by
>> administrative command. Then a few minutes later I see a vacuum  
>> process
>> spawned.
>>
>> Is it possible that there are timers that aren't being properly
>> terminated here ?
>
> I wonder whether there are tables that need an emergency vacuum (i.e.
> they have reached the freeze horizon).  What version are you running
> anyway?
>
version 8.3 and doubtful.

Since a number of people actually do this it would seem like a better  
way to temporarily suspend autovac should be on the todo ?

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


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Next:From: Alvaro HerreraDate: 2008-08-25 13:48:04
Subject: Re: can't stop autovacuum by HUP'ing the server
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