Hi, After a host failure (and two disks failing within 8 hours) one of our OSD failed to start after boot with the following error: 0> 2015-10-26 08:15:59.923059 7f67f0cb2900 -1 osd/PG.cc: In function 'static epoch_t PG::peek_map_epoch(ObjectStore*, spg_t, ceph::bufferlist*)' thread 7f67f0cb2900 time 2015-10-26 08:15:59.922041 osd/PG.cc: 2856: FAILED assert(values.size() == 1) Full log attached here: http://tracker.ceph.com/issues/13594 As noted this is similar to http://tracker.ceph.com/issues/4855 Which was closed as cannot reproduce. After a second host failure we got a second OSD with the same error (we tried multiple times to restart), which is scary since our cluster is not that big and recovery takes a very long time. We'd like to restart these OSD, may be the start error is linked to the journal? Would it be sfe to reset the journal with: ceph-osd --mkjournal -i OSDNUM Thanks in advance for any help, Sincerely, Laurent _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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