Hello, we have a Ceph Cluster 10.2.10 on VMs with Ubuntu 16.04 using Xen as the hypervisor. We use CephFS and the clients use ceph-fuse to access the files. Some of the ceph-fuse clients hang on write operations to the cephFS. On copying a file to the cephFS, the file is created but it's empty and the write operation hangs forever. Ceph-fuse version is 10.2.9. In the logfile of the mds there are no error messages. Also, ceph health returns HEALTH_OK. ceph daemon mds.eco61 session ls reports no problems (if I interpret correctly): { "id": 64396, "num_leases": 2, "num_caps": 32, "state": "open", "replay_requests": 0, "completed_requests": 1, "reconnecting": false, "inst": "client.64396 192.168.1.179:0\/980852091", "client_metadata": { "ceph_sha1": "2ee413f77150c0f375ff6f10edd6c8f9c7d060d0", "ceph_version": "ceph version 10.2.9 (2ee413f77150c0f375ff6f10edd6c8f9c7d060d0)", "entity_id": "admin", "hostname": "eco79", "mount_point": "\/mnt\/cephfs", "root": "\/" } }, Does anyone have an idea where the problem lies? Any help would be greatly appreciated. Thanks very much, Kind regards Sabine |
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