Ceph » CephFS

yes, we need recent version of ceph-fuse and MDS. old version does not support interrupting flock

http://pulpito.ceph.com/loic-2015-02-28_11:45:50-fs-firefly-backports---basic-multi/783093/
http://pulpito.ceph.com/loic-2015-02-28_11:45:50-fs-firefly-backports---basic-multi/783076/

2014-12-01T16:51:07.475 INFO:teuthology.orchestra.run.plana03:Running: 'mkdir -p -- /home/ubuntu/cephtest/mnt.0/client.0/tmp && cd -- /home/ubuntu/cephtest/mnt.0/client.0/tmp && CEPH_CLI_TEST_DUP_COMMAND=1 CEPH_REF=310a3f1c65d25ee1fc60398f0fe025e4b19f55fe TESTDIR="/home/ubuntu/cephtest" CEPH_ID="0" adjust-ulimits ceph-coverage /home/ubuntu/cephtest/archive/coverage timeout 3h /home/ubuntu/cephtest/workunit.client.0/fs/misc/filelock_interrupt.py'
2014-12-01T16:51:12.560 INFO:tasks.workunit.client.0.plana03.stderr:Traceback (most recent call last):
2014-12-01T16:51:12.560 INFO:tasks.workunit.client.0.plana03.stderr:  File "/home/ubuntu/cephtest/workunit.client.0/fs/misc/filelock_interrupt.py", line 78, in <module>
2014-12-01T16:51:12.560 INFO:tasks.workunit.client.0.plana03.stderr:    main()
2014-12-01T16:51:12.561 INFO:tasks.workunit.client.0.plana03.stderr:  File "/home/ubuntu/cephtest/workunit.client.0/fs/misc/filelock_interrupt.py", line 41, in main
2014-12-01T16:51:12.561 INFO:tasks.workunit.client.0.plana03.stderr:    fcntl.fcntl(f1, fcntl.F_OFD_SETLK, lockdata)
2014-12-01T16:51:12.561 INFO:tasks.workunit.client.0.plana03.stderr:IOError: [Errno 22] Invalid argument

the failure is likely caused by running ceph-fuse on kernel < 3.15, kernels < 3.15 do not support fcntl.F_OFD_SETLK.

hammer backport in commit:e7e0ea626ecca7c74b76099a0c4fc016ca4e410f from pull request https://github.com/ceph/ceph/pull/4170