On Friday, February 8, 2013 at 6:24 AM, Tobias Prousa wrote: > After some more digging and IRC discussion the issue with truncated files seems to be related to me having mounted cephfs on multiple clients concurrently, which in turn cephfs seems to not handle very well at the moment. As soon as there is only on client mounting that ceph filesystem, the problem is gone. > > There is said to be patches around which will improve that situation but those haven't even hit repositories, so be patient. > > Btw. that result is maybe as important as atm. staying away from multiple active MDSs, so maybe a little note on docs could help other brave testers to not experience the same issues. Yikes! This sounds a bit different than the issues I've heard about so far. Among other things, unless you have daemon restarts that you aren't describing here, this sounds like it's a kernel client bug. Can you 1) Try using ceph-fuse and see if the problem manifests there? If it does, 2) Turn on MDS and OSD debugging and reproduce the problem in a new directory? -Greg > > Thanks for helping me finding the root cause of this. > > Regards, > Tobi > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx (mailto:ceph-users@xxxxxxxxxxxxxx) > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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