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Re: register/unregister standby Re: Synchronous replication

From: Dimitri Fontaine <dfontaine(at)hi-media(dot)com>
To: Itagaki Takahiro <itagaki(dot)takahiro(at)gmail(dot)com>
Cc: Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, Fujii Masao <masao(dot)fujii(at)gmail(dot)com>, Joshua Tolley <eggyknap(at)gmail(dot)com>, Yeb Havinga <yebhavinga(at)gmail(dot)com>, Aidan Van Dyk <aidan(at)highrise(dot)ca>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: register/unregister standby Re: Synchronous replication
Date: 2010-09-02 10:54:52
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers
Itagaki Takahiro <itagaki(dot)takahiro(at)gmail(dot)com> writes:
>>> There's been some talk of being able to stream a base backup over the
>>> replication connection too, which would be extremely handy.
>> Yes please ! :)
> One issue of the base backup function is that the operation will
> be a long transaction. So, non-transactional special commands,
> as like as VACUUM, would be better in terms of performance.

Well, you still need to stream the data to the client in a format it
will understand. Would that be the plan of your command proposal?

> Of course, function-based approach is more flexible and
> less invasive to the SQL parser. There are trade-offs.

Well that was easier for a proof-of-concept at least.
Dimitri Fontaine
PostgreSQL DBA, Architecte

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Subject: Re: Synchronous replication - patch status inquiry

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