Hi All
Kernel client: 4.6.4-1.el7.elrepo.x86_64
MDS version: 10.2.2
OS: CentOS 7
I have Cephfs mounted on a few servers, I see the following in the log approx every 20 secs on all of them:
kernel: ceph: mds0 caps went stale, renewing
kernel: ceph: mds0 caps stale
kernel: ceph: mds0 caps renewed
I'm trying to debug a few intermittent nfs related issues (which may or may not be cephfs related) and I'm just wondering if these lines are anything to worry about.
I've mounted on a server that is almost completely idle and I'm still seeing those lines every 20 secs.
Ceph health is OK and the MDS server seems pretty happy although I am occasionally seeing some "closing stale session" lines in the ceph-mds log but I think that's a separate issue.
Thanks,
David
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