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Re: We really ought to do something about O_DIRECT and data=journalled on ext4

From: Josh Berkus <josh(at)agliodbs(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: We really ought to do something about O_DIRECT and data=journalled on ext4
Date: 2010-12-01 03:13:11
Message-ID: 4CF5BD47.1040501@agliodbs.com (view raw or flat)
Thread:
Lists: pgsql-hackers
On 11/30/10 7:09 PM, Tom Lane wrote:
> Josh Berkus <josh(at)agliodbs(dot)com> writes:
>> Apparently, testing for O_DIRECT at compile time isn't adequate.  Ideas?
> 
> We should wait for the outcome of the discussion about whether to change
> the default wal_sync_method before worrying about this.

Are we considering backporting that change?

If so, this would be another argument in favor of changing the default.

-- 
                                  -- Josh Berkus
                                     PostgreSQL Experts Inc.
                                     http://www.pgexperts.com

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