Re: checkpoint_timeout irrelevant in 8.1.9

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От Joshua D. Drake
Тема Re: checkpoint_timeout irrelevant in 8.1.9
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Msg-id 467967D3.9070001@commandprompt.com
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Ответ на checkpoint_timeout irrelevant in 8.1.9  ("George Wilk" <gwilk@ellacoya.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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