| From: | Fujii Masao <masao(dot)fujii(at)gmail(dot)com> |
|---|---|
| To: | Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, "Sander, Ingo (NSN - DE/Munich)" <ingo(dot)sander(at)nsn(dot)com>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Streaming Replication: Checkpoint_segment and wal_keep_segments on standby |
| Date: | 2010-06-02 13:24:30 |
| Message-ID: | AANLkTil6a8IRZSJFBJ-MxDP8pGvamdmapczDtI-Adb1D@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Wed, Jun 2, 2010 at 8:40 PM, Heikki Linnakangas
<heikki(dot)linnakangas(at)enterprisedb(dot)com> wrote:
> On 02/06/10 06:23, Fujii Masao wrote:
>>
>> On Mon, May 31, 2010 at 7:17 PM, Fujii Masao<masao(dot)fujii(at)gmail(dot)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.
Regards,
--
Fujii Masao
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
NTT Open Source Software Center
| Attachment | Content-Type | Size |
|---|---|---|
| checkpoint_segments_during_recovery_v3.patch | application/octet-stream | 5.5 KB |
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