Hi everyone, I use Ceph Firefly release. I had a MDS cluster with only one MDS until yesterday, when I tried to add a second one to test multi-mds. I thought I could get back to one MDS when I want, but it seems we can't ! Both crashed this night, and I am unable to get them back today. They appear as active in ceph -s, clients using 3.16 kernel mount it but no operation can be done : "ls" is freezing, load average of client is climbing and nothing is done by MDSes (not using CPU, nothing in logs except some "mdsload" messages and after some time : closing stale session client). How can I do to debug this situation and recover my data ? Thank you a lot. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.ceph.com/pipermail/ceph-users-ceph.com/attachments/20140903/e72e4522/attachment.htm>
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