Re: [PATCHES] Load distributed checkpoint

From: ITAGAKI Takahiro <itagaki(dot)takahiro(at)oss(dot)ntt(dot)co(dot)jp>
To: "Inaam Rana" <inaamrana(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: [PATCHES] Load distributed checkpoint
Date: 2007-02-27 08:08:39
Message-ID: 20070227164818.6396.ITAGAKI.TAKAHIRO@oss.ntt.co.jp
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"Inaam Rana" <inaamrana(at)gmail(dot)com> wrote:

> One of the issues we had during testing with original patch was db stop not
> working properly. I think you coded something to do a stop checkpoint in
> immediately but if a checkpoint is already in progress at that time, it
> would take its own time to complete.
> Does this patch resolve that issue?

Yes, I fixed the problem. If a checkpoint by user SQL or shutdown is waiting
during an automatic checkpoint, the running checkpoint will be done without
any delays. At the worst case, you have to wait two checkpoints, (a running
automatic checkpoint and your explicit request) but nothing more of them.

> Also, is it based on pg82stable or HEAD?

It's based on HEAD.

Regards,
---
ITAGAKI Takahiro
NTT Open Source Software Center

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