Horton

Re: Streaming base backups

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Florian Pflug <fgp@phlo.org>
Cc: Garick Hamlin <ghamlin@isc.upenn.edu>, Cédric Villemain <cedric.villemain.debian@gmail.com>, Magnus Hagander <magnus@hagander.net>, Dimitri Fontaine <dimitri@2ndquadrant.fr>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2011-01-11T17:45:02Z
Lists: pgsql-hackers 
Florian Pflug <fgp@phlo.org> writes:
> On Jan11, 2011, at 18:09 , Garick Hamlin wrote:
>> My gut was that direct io would likely work right on Linux
>> and Solaris, at least.

> Didn't we discover recently that O_DIRECT fails for ext4 on linux
> if ordered=data, or something like that?

Quite.  Blithe assertions that something like this "should work" aren't
worth the electrons they're written on.

			regards, tom lane