On Wed, Oct 27, 2010 at 3:03 AM, fazool mein <fazoolmein@gmail.com> wrote:
>
>> Might I suggest adopting the same technique walsender does, ie just read
>> the data back from disk? There's a reason why we gave up trying to have
>> walsender read directly from the buffers.
>>
>
> That is exactly what I do not want to do, i.e. read from disk, as long as
> the piece of WAL is available in the buffers.
I implemented before the patch which makes walsender read WAL from the buffer
without holding neither WALInsertLock nor WALWriteLock. That might be helpful
for you. Please see the following post.
http://archives.postgresql.org/pgsql-hackers/2010-06/msg00661.php
Regards,
--
Fujii Masao
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
NTT Open Source Software Center
