Re: Long Running Commits - Not Checkpoints - Mailing list pgsql-performance

From Tom Lane
Subject Re: Long Running Commits - Not Checkpoints
Date
Msg-id 15180.1189696209@sss.pgh.pa.us
Whole thread Raw
In response to Re: Long Running Commits - Not Checkpoints  (Brad Nicholson <bnichols@ca.afilias.info>)
Responses Re: Long Running Commits - Not Checkpoints
List pgsql-performance
Brad Nicholson <bnichols@ca.afilias.info> writes:
> On Thu, 2007-09-13 at 10:15 -0400, Brad Nicholson wrote:
>> I'm having a problem with long running commits appearing in my database
>> logs.  It may be hardware related, as the problem appeared when we moved
>> the database to a new server connected to a different disk array.

> More on this - we also have long running commits on installations that
> do have the wal files on a separate partition.

What's your definition of "long running commit" --- seconds? milliseconds?
Exactly what are you measuring?  Can you correlate the problem with what
the transaction was doing?

            regards, tom lane

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