Re: Upcoming hot standby replication question

From: Guillaume Lelarge <guillaume(at)lelarge(dot)info>
To: Ivan Voras <ivoras(at)freebsd(dot)org>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: Upcoming hot standby replication question
Date: 2010-04-09 14:26:16
Message-ID: 4BBF3908.8000003@lelarge.info
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Hi,

Le 09/04/2010 16:10, Ivan Voras a écrit :
> [...]
> I'd like to ask about the asynchronous nature of upcoming replication
> implementation in 9.0 - what guarantees does it give with regards to
> delays and latency? E.g. do COMMITs "finish" and return to the caller
> before or after the data is sent to the slave? (being asynchronous, they
> probably don't wait for the other side's confirmation, right?).
>

Before data is sent. So, yes, they don't wait.

--
Guillaume.
http://www.postgresqlfr.org
http://dalibo.com

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