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. Thanks for helping me finding the root cause of this. Regards, Tobi _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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