Re: Streaming Replication: Checkpoint_segment and wal_keep_segments on standby

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От Fujii Masao
Тема Re: Streaming Replication: Checkpoint_segment and wal_keep_segments on standby
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Msg-id AANLkTikGw8mibq_mSU3uOGnoyQbL4prIfishyo07yg8V@mail.gmail.com
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Ответ на Re: Streaming Replication: Checkpoint_segment and wal_keep_segments on standby  (Fujii Masao <masao.fujii@gmail.com>)
Ответы Re: Streaming Replication: Checkpoint_segment and wal_keep_segments on standby  (Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>)
Список pgsql-hackers
On Wed, Jun 2, 2010 at 10:24 PM, Fujii Masao <masao.fujii@gmail.com> wrote:
> On Wed, Jun 2, 2010 at 8:40 PM, Heikki Linnakangas
> <heikki.linnakangas@enterprisedb.com> wrote:
>> On 02/06/10 06:23, Fujii Masao wrote:
>>>
>>> On Mon, May 31, 2010 at 7:17 PM, Fujii Masao<masao.fujii@gmail.com>
>>>  wrote:
>>>>
>>>> 4) Change it so that checkpoint_segments takes effect in standby mode,
>>>> but not during recovery otherwise
>>>
>>> I revised the patch to achieve 4). This will enable checkpoint_segments
>>> to trigger a restartpoint like checkpoint_timeout already does, in
>>> standby mode (i.e., streaming replication or file-based log shipping).
>>
>> Hmm, XLogCtl->Insert.RedoRecPtr is not updated during recovery, so this
>> doesn't work.
>
> Oops! I revised the patch, which changes CreateRestartPoint() so that
> it updates XLogCtl->Insert.RedoRecPtr.

This is one of open items. Please review the patch I submitted, and
please feel free to comment!

Regards,

--
Fujii Masao
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
NTT Open Source Software Center


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