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Re: checkpoint_timeout irrelevant in 8.1.9

From: "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>
To: George Wilk <gwilk(at)ellacoya(dot)com>
Cc: pgsql-admin(at)postgresql(dot)org
Subject: Re: checkpoint_timeout irrelevant in 8.1.9
Date: 2007-06-20 17:45:55
Message-ID: 467967D3.9070001@commandprompt.com (view raw or flat)
Thread:
Lists: pgsql-admin
George Wilk wrote:


> However, it seems as though setting 
> my checkpoint_timeout has no effect on checkpoint creation ( I have it 
> set to 30 seconds).  Forcing checkpoint by running */psql –c CHECKPOINT 
> mydb/* doesn’t do the trick either.  Checkpoints are created solely 
> based on the checkpoint_segments logs reaching their configured size.
> 

There is no such thing as checkpoint creation. Checkpoint timeout means 
that at 30 seconds (based on checkpoint_timeout) it will checkpoint 
unless it needs to do so sooner.

Joshua D. Drake



>  
> 
> This is not satisfactory in a low transaction volume environment.  Any 
> hints on how else can I trigger checkpoint?
> 
>  
> 
> Thanks in advance,
> 
>  
> 
> ~george
> 


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Subject: Re: checkpoint_timeout irrelevant in 8.1.9
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