Re: Can we trust fsync?

From: Craig Ringer <craig(at)2ndquadrant(dot)com>
To: PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Can we trust fsync?
Date: 2013-11-21 00:01:37
Message-ID: 528D4D61.7070405@2ndquadrant.com
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On 11/21/2013 07:45 AM, Craig Ringer wrote:
> I'm really concerned by this post on Linux's fsync and disk flush behaviour:
>
> http://milek.blogspot.com.au/2010/12/linux-osync-and-write-barriers.html

... and yes, I realise that's partly why we have the "fsync" param to
control different sync modes. Just concerned it's even more variable
than I thought.

--
Craig Ringer http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services

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