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
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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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