2013-11-27 15:00:59.456709 7f9b84a12780  0 ceph version 0.72.1 (4d923861868f6a15dcb33fef7f50f674997322de), process ceph-osd, pid 12580
2013-11-27 15:00:59.460808 7f9b84a12780  1 filestore(/var/lib/ceph/osd/ceph-0) mount detected xfs
2013-11-27 15:00:59.460816 7f9b84a12780  1 filestore(/var/lib/ceph/osd/ceph-0)  disabling 'filestore replica fadvise' due to known issues with fadvise(DONTNEED) on xfs
2013-11-27 15:00:59.463589 7f9b84a12780  0 genericfilestorebackend(/var/lib/ceph/osd/ceph-0) detect_features: FIEMAP ioctl is supported and appears to work
2013-11-27 15:00:59.463606 7f9b84a12780  0 genericfilestorebackend(/var/lib/ceph/osd/ceph-0) detect_features: FIEMAP ioctl is disabled via 'filestore fiemap' config option
2013-11-27 15:00:59.464247 7f9b84a12780  0 genericfilestorebackend(/var/lib/ceph/osd/ceph-0) detect_features: syncfs(2) syscall fully supported (by glibc and kernel)
2013-11-27 15:00:59.465652 7f9b84a12780  0 filestore(/var/lib/ceph/osd/ceph-0) mount: enabling WRITEAHEAD journal mode: checkpoint is not enabled
2013-11-27 15:00:59.467825 7f9b84a12780  1 journal _open /var/lib/ceph/osd/ceph-0/journal fd 21: 1999843078144 bytes, block size 4096 bytes, directio = 1, aio = 1
2013-11-27 15:00:59.467972 7f9b84a12780 -1 journal read_header error decoding journal header
2013-11-27 15:00:59.468041 7f9b84a12780 -1 filestore(/var/lib/ceph/osd/ceph-0) mount failed to open journal /var/lib/ceph/osd/ceph-0/journal: (22) Invalid argument
2013-11-27 15:00:59.476127 7f9b84a12780 -1  ** ERROR: error converting store /var/lib/ceph/osd/ceph-0: (22) Invalid argument