| From: | Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
|---|---|
| To: | Simon Riggs <simon(at)2ndquadrant(dot)com> |
| Cc: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Autovacuum and OldestXmin |
| Date: | 2008-11-03 19:04:27 |
| Message-ID: | 20081103190427.GU4509@alvh.no-ip.org |
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| Lists: | pgsql-hackers |
Alvaro Herrera wrote:
> Simon Riggs wrote:
> > [Also there is a comment saying "this is a bug" in autovacuum.c
> > Are we thinking to go production with that phrase in the code?]
>
> Yeah, well, it's only a comment ;-) The problem is that a worker can
> decide that a table needs to be vacuumed, if another worker has finished
> vacuuming it in the last 500 ms. I proposed a mechanism to close the
> hole but it was too much of a hassle.
I just committed a patch that should fix this problem.
--
Alvaro Herrera http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support
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