Hi "ceph daemon mds.<id> session ls", executed in your mds server, should give you hostname and client id of all your cephfs clients.
"ceph daemon mds.<id> dump_ops_in_flight" should give you operations not completed or pending to complete for certain clients ids. In case of problems, that those problematic clients will probably appear there. Cheers Goncalo ________________________________________ From: ceph-users [[email protected]] on behalf of Yutian Li [[email protected]] Sent: 10 November 2016 15:21 To: [email protected] Subject: [ceph-users] Locating CephFS clients in warn message I get a HEALTH_WARN when I run `ceph status`. It says health HEALTH_WARN mds0: Many clients (17) failing to respond to cache pressure I have 50 OSDs, 3 MONs, and 1 MDS. I just use CephFS and attach it to 20 ~ 30 clients using kernel mount option. I wonder how to locate those "many" clients that are failing to respond. I don't even see an ID of the lagging clients anywhere. Thanks! _______________________________________________ ceph-users mailing list [email protected] http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
