Decibel! wrote:
On Thu, Aug 30, 2007 at 11:50:04AM +0200, Ruben Rubio wrote:
As you may know, I do a vacuum full and a reindex database each day. I
have logs that confirm that its done and I can check that everything was
fine.
So, this morning, I stopped the website, I stopped database, started it
again. (I was around 200 days without restarting), then I vacuum
database and reindex it (Same command as everyday) . Restart again, and
run again the website.
Now seems its working fine. But I really does not know where is the
problem. Seems vacuum its not working fine? Maybe database should need
a restart? I really don't know.
No, it sounds to me like you just weren't vacuuming aggressively enough
to keep up with demand.
Actually , I think it sounds like a stray long-lived transaction.
Ruben - vacuum can't recover rows if another transaction might be able
to see them. So, if you have a connection that issues BEGIN and sits
there for 200 days you can end up with a lot of bloat in your database.
Now, there's no way to prove that since you've restarted the
database-server, but keep an eye on it.
--
Richard Huxton
Archonet Ltd
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