Ceph

When using /etc/init.d/ceph -a start, and if you have osds spread across multi hosts. The init script failed to run correctly.It will put all osds to the first host,and failed to calculate the default weight according to available space for remote osds.

Here is part of the wrong code.

   get_conf osd_location "" "osd crush location" 
   get_conf osd_weight "" "osd crush initial weight" 
   #this df command should be run remotely by do_root_cmd, not local
   defaultweight=`df $osd_data/. | tail -1 | awk '{ d= $2/1073741824 ; r = sprintf("%.2f", d); print r }'`
   get_conf osd_keyring "$osd_data/keyring" "keyring" 
   $BINDIR/ceph \
         --name="osd.$id" \
         --keyring="$osd_keyring" \
          osd crush create-or-move \
          -- \
          "$id" \
          "${osd_weight:-${defaultweight:-1}}" \
           root=default \
        #the hostname command should also be run remotely ,otherwise all OSDs will be wrongly put under the first host
           host="$(hostname -s)" \