On Tue, Nov 13, 2012 at 03:17:12PM -0500, Greg Keller wrote: > >From: Joe Landman ><[email protected]<mailto:[email protected]>> >That's not the issue with glusterfs. It's distributed metadata architecture >is a double edged sword. Very good for distributed data, very very bad for >metadata heavy ops. > >That and the xfs attributes haven't been slow in years though some folks like >bringing up the old behavior pre 2.6.26 as examples of why you shouldn't use >it. Dave Chinner has a great presentation on the topic from 15 months ago or >so. Puts down real numbers. Situation is rather different than implied. > > >We've recently seen XFS kill a pretty important server after an abrupt power >off. It appears someone decided they needed to force it to be "POSIX" >compliant by default, and as a result XFS doesn't sync/flush to disk unless >told to or some rather long timeout (30 seconds can be verrry long ). > >Has anyone else seen this / been surprised / re-tuned / written the how-to for >me?
On the other hand... We use XFS for several hundred TB of files (in multiple separate 20 or 40TB filesystems), and haven't had a serious XFS-related problem since we started using it ~5 or 6 years ago. -- Jesse Becker NHGRI Linux support (Digicon Contractor) _______________________________________________ Beowulf mailing list, [email protected] sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
