Re: [COMMITTERS] pgsql: In walsender, don't sleep if there's outstanding WAL waiting to

Fujii Masao <masao.fujii@gmail.com>

From: Fujii Masao <masao.fujii@gmail.com>
To: Heikki Linnakangas <heikki@postgresql.org>
Cc: PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2010-05-31T10:20:28Z
Lists: pgsql-hackers

Attachments

On Mon, May 31, 2010 at 7:03 PM, Fujii Masao <masao.fujii@gmail.com> wrote:
> Hi,
>
> On Thu, May 27, 2010 at 7:21 AM, Heikki Linnakangas
> <heikki@postgresql.org> wrote:
>> Log Message:
>> -----------
>> In walsender, don't sleep if there's outstanding WAL waiting to be sent,
>> otherwise we effectively rate-limit the streaming as pointed out by
>> Simon Riggs. Also, send the WAL in smaller chunks, to respond to signals
>> more promptly.
>>
>> Modified Files:
>> --------------
>>    pgsql/src/backend/replication:
>>        walsender.c (r1.20 -> r1.21)
>>        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/replication/walsender.c?r1=1.20&r2=1.21)
>
> This commit seems to have introduced the bug that walsender exits
> before sending all the WAL up to shutdown checkpoint record when
> smart shutdown is requested.
>
> The attached patch fixes the bug and a tiny typo.

Sorry. I forgot to attach the patch..

Regards,

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