Am 24. April 2012 18:26 schrieb Sage Weil <sage@xxxxxxxxxxxx>: > On Tue, 24 Apr 2012, Josef Bacik wrote: >> On Fri, Apr 20, 2012 at 05:09:34PM +0200, Christian Brunner wrote: >> > After running ceph on XFS for some time, I decided to try btrfs again. >> > Performance with the current "for-linux-min" branch and big metadata >> > is much better. The only problem (?) I'm still seeing is a warning >> > that seems to occur from time to time: > > Actually, before you do that... we have a new tool, > test_filestore_workloadgen, that generates a ceph-osd-like workload on the > local file system. It's a subset of what a full OSD might do, but if > we're lucky it will be sufficient to reproduce this issue. Something like > > test_filestore_workloadgen --osd-data /foo --osd-journal /bar > > will hopefully do the trick. > > Christian, maybe you can see if that is able to trigger this warning? > You'll need to pull it from the current master branch; it wasn't in the > last release. I've tried test_filestore_workloadgen, but it didn't work very well. After 5 Minutes it terminated with the following messages: 2012-04-25 11:28:57.768709 7fcac3f69760 0 Destroying collection '0.1_head' (358 objects) 2012-04-25 11:29:07.478747 7fcac3f69760 0 Destroying collection '0.22_head' (477 objects) 2012-04-25 11:29:07.479035 7fcac3f69760 0 We ran out of collections! 2012-04-25 11:29:07.916149 7fcac3f69760 1 journal close /dev/mapper/vg01-lv_osd_journal_0 I guess this is not btrfs related .-) @Josef: If Sage doesn't have any other solution, I'll put up some ceph installation instructions. Regards, Christian -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
