Hi list, I've run into a bit of a weird error and I'm hoping that you can tell me what is going wrong. There seems to be a race condition in the way I am using "ceph osd create <uuid>" and actually creating the OSD's. The log from one of the servers is at: https://gist.github.com/528e347a5c0ffeb30abd The process I am trying to follow (for the OSDs) is: 1) Create XFS file system on disk. 2) Use FS UUID as source to get a new OSD id #. 'ceph', 'osd', 'create', '32895846-ca1c-4265-9ce7-9f2a42b41672' (Returns 2.) 3) Pass the UUID and OSD id to the create osd command ceph-osd -c /etc/ceph/ceph.conf --fsid e61c1b11-4a1c-47aa-868d-7b51b1e610d3 --osd-uuid 32895846-ca1c-4265-9ce7-9f2a42b41672 -i 2 --mkfs --osd-journal-size 8192 4) Start the OSD, as part of the start process, I verify that the whoami and osd fsid agree (in case this disk came from a previous cluster, somehow) - should be just a sanity check 'ceph', 'osd', 'create', '32895846-ca1c-4265-9ce7-9f2a42b41672' (Returns 1!) This is clearly a race condition because we have several cluster creations without this happening and then this happens about once every 8 times or so. Thoughts? Regards, Mandell Degerness -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
