Re: Synchronous Log Shipping Replication - Mailing list pgsql-hackers

From Fujii Masao
Subject Re: Synchronous Log Shipping Replication
Date
Msg-id 3f0b79eb0809100701q27f13090t63f073a6ecb63e99@mail.gmail.com
Whole thread Raw
In response to Re: Synchronous Log Shipping Replication  (Markus Wanner <markus@bluegap.ch>)
Responses Re: Synchronous Log Shipping Replication  (Markus Wanner <markus@bluegap.ch>)
List pgsql-hackers
On Tue, Sep 9, 2008 at 10:55 PM, Markus Wanner <markus@bluegap.ch> wrote:
> Hi,
>
> ITAGAKI Takahiro wrote:
>>
>> Signals and locking, borrewed from Postgres-R, are now studied
>> for the purpose in the log shipping,
>
> Cool. Let me know if you have any questions WRT this imessages stuff.

If you're sure it's all right, I have a trivial question.

Which signal should we use for the notification to the backend from
WAL sender? The notable signals are already used.

Or, since a backend don't need to wait on select() unlike WAL sender,
ISTM that it's not so inconvenient to use a semaphore for that notification.

Your thought?

regards

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


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