That's fair enough Greg, I'll keep upgrading when the opportunity arises, and maybe it'll spring back to life someday :-)
-----Original Message----- From: Gregory Farnum [mailto:g...@gregs42.com] Sent: 20 March 2015 23:05 To: Chris Murray Cc: ceph-users Subject: Re: [ceph-users] More than 50% osds down, CPUs still busy; will the cluster recover without help? On Fri, Mar 20, 2015 at 4:03 PM, Chris Murray <chrismurra...@gmail.com> wrote: > Ah, I was wondering myself if compression could be causing an issue, but I'm > reconsidering now. My latest experiment should hopefully help troubleshoot. > > So, I remembered that ZLIB is slower, but is more 'safe for old kernels'. I > try that: > > find /var/lib/ceph/osd/ceph-1/current -xdev \( -type f -o -type d \) > -exec btrfs filesystem defragment -v -czlib -- {} + > > After much, much waiting, all files have been rewritten, but the OSD still > gets stuck at the same point. > > I've now unset the compress attribute on all files and started the defragment > process again, but I'm not too hopeful since the files must be > readable/writeable if I didn't get some failure during the defrag process. > > find /var/lib/ceph/osd/ceph-1/current -xdev \( -type f -o -type d \) > -exec chattr -c -- {} + find /var/lib/ceph/osd/ceph-1/current -xdev \( > -type f -o -type d \) -exec btrfs filesystem defragment -v -- {} + > > (latter command still running) > > Any other ideas at all? In the absence of the problem being spelled out to me > with an error of some sort, I'm not sure how to troubleshoot further. Not much, sorry. > Is it safe to upgrade a problematic cluster, when the time comes, in case > this ultimately is a CEPH bug which is fixed in something later than 0.80.9? In general it should be fine since we're careful about backwards compatibility, but without knowing the actual issue I can't promise anything. -Greg ----- No virus found in this message. Checked by AVG - www.avg.com Version: 2015.0.5751 / Virus Database: 4306/9314 - Release Date: 03/16/15 _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
