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Re: Synchronous replication & Hot standby patches

From: Simon Riggs <simon(at)2ndQuadrant(dot)com>
To: Fujii Masao <masao(dot)fujii(at)gmail(dot)com>
Cc: "K, Niranjan (NSN - IN/Bangalore)" <niranjan(dot)k(at)nsn(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Synchronous replication & Hot standby patches
Date: 2009-02-24 17:36:11
Message-ID: 1235496972.16176.163.camel@ebony.2ndQuadrant (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers
On Wed, 2009-02-25 at 00:51 +0900, Fujii Masao wrote:

> On Tue, Feb 24, 2009 at 3:47 PM, K, Niranjan (NSN - IN/Bangalore)
> <niranjan(dot)k(at)nsn(dot)com> wrote:
> > Could you please let me know what are the outstanding features that are still to be developed in the respective patches?
> >
> > I'am currently referring the wiki: "Todo and Claim" for NTT and for HotStandby, i see that almost all issues are closed. Are there any features / refactoring / bugs still need to be fixed.
> At least I'm planning to work on the following two items of Synch Rep for v8.5.
> Of course, Synch Rep works fine without these features.

> - Add new feature which transfers all WAL records via the direct connection
>   between the primary and the standby. In other words, get rid of
>   file-based log shipping part from the patch.

Please bear in mind my strong objection to this. Attempting to transfer
all data via a single connection destroys VLDB usage of this feature. So
for me its just additional code for ease-of-use in the simplest case,
not code replacement.

 Simon Riggs 
 PostgreSQL Training, Services and Support

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Subject: Re: Synchronous replication & Hot standby patches
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Subject: Re: Sync replication tests

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