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Re: vacuum problem

From: "John R Pierce" <pierce(at)hogranch(dot)com>
To: "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: "pgsql -bugs" <pgsql-bugs(at)postgresql(dot)org>
Subject: Re: vacuum problem
Date: 2004-09-13 16:22:38
Message-ID: 06b101c499ad$e318ecf0$ (view raw, whole thread or download thread mbox)
Lists: pgsql-bugs
>> there are no background programs.  I've done all the usual checking of 
>> `ps'
>> outputs looking for such.
>> in the test case I mailed to this list, I had created a standalone 
>> database
>> with one table, and run the test program directly against it.
> That sounds suspiciously like you think that only background clients
> connected to the same database count.  Actually, any other client
> connected to the same *postmaster* can look like an open transaction
> to VACUUM ...

indeed, I did think this.  A completely different development project on the 
same server was in fact leaving a postmaster 'idle in transaction'...  I 
didn't realize this would matter.

I had that developer kill his 'idle in transaction' process, and voila, I 
can vacuum my table now on the fly.      I told him to fix his logic to STOP 
doing that, he's a SQL novice.

so, my huge apologies for wasting the buglist's time on this. 

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