Re: Automatic free space map filling - Mailing list pgsql-hackers

From Matthew T. O'Connor
Subject Re: Automatic free space map filling
Date
Msg-id 4408E44E.8090004@zeut.net
Whole thread Raw
In response to Re: Automatic free space map filling  (Csaba Nagy <nagy@ecircle-ag.com>)
Responses Re: Automatic free space map filling
List pgsql-hackers
Csaba Nagy wrote:
>> So he rather needs Hannu Krosing's patch for simultaneous vacuum ...
>>     
>
> Well, I guess that would be a good solution to the "queue table"
> problem. The problem is that I can't deploy that patch on our production
> systems without being fairly sure it won't corrupt any data... and I
> can't rely on non-production testing either. Basically I'm waiting to
> see Tom saying it will fly :-)

That patch is a step forward if it's deemed OK by the powers that be.  
However, autovacuum would still need to be taught to handle simultaneous 
vacuums.  I suppose that in the interim, you could disable autovacuum 
for the problematic queue table and have cron issue a manual vacuum 
command for that table at the required frequency.

Anyone up for working on / testing / improving Hannu's patch?  I think 
it's beyond my skill set.

Matt



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