2011/3/10 huang jun <hjwsm1989@xxxxxxxxx>: > hi Greg: > here is my configure file: <snip> > and i find something wrong in /var/log/ceph/osd.0.log > 2011-03-11 08:42:23.888496 7f207255d6f0 osd0 0 mounting /data/osd0 > 2011-03-11 08:42:23.888517 7f207255d6f0 filestore(/data/osd0) basedir > /data/osd0 journal > 2011-03-11 08:42:23.888576 7f207255d6f0 filestore(/data/osd0) x = > 1804289383 y = 1804289384 > 2011-03-11 08:42:23.888621 7f207255d6f0 filestore(/data/osd0) xattrs > don't appear to work (Operation not supported) on /data/osd0/fsid, be > sure to mount underlying file system with 'user_xattr' option > 2011-03-11 08:42:23.888632 7f207255d6f0 osd0 0 unable to mount object store > > i don't know why "x != y" > thanks! Aha! It looks like the filesystem you are attempting to use as the OSD's data store doesn't have user xattr support enabled. This is a required feature for Ceph to work, so when the OSD boots up, it discovers the xattrs are broken and shuts itself back down again. If you had this working previously, it's possible that you didn't put user xattrs into the default mount options, so the setting was lost on reboot. -Greg -- 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