Re: Proposal for 9.1: WAL streaming from WAL buffers

From: Simon Riggs <simon(at)2ndQuadrant(dot)com>
To: Fujii Masao <masao(dot)fujii(at)gmail(dot)com>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Stefan Kaltenbrunner <stefan(at)kaltenbrunner(dot)cc>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Proposal for 9.1: WAL streaming from WAL buffers
Date: 2010-06-14 11:55:59
Message-ID: 1276516559.23257.50507.camel@ebony
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On Mon, 2010-06-14 at 17:39 +0900, Fujii Masao wrote:
> No, currently walsender waits for fsync.
> ...

> But that change would cause the problem that Robert pointed out.
> http://archives.postgresql.org/pgsql-hackers/2010-06/msg00670.php

Presumably this means that if synchronous_commit = off on primary that
SR in 9.0 will no longer work correctly if the primary crashes?

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Simon Riggs www.2ndQuadrant.com
PostgreSQL Development, 24x7 Support, Training and Services

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