+
+ # sync local transactions on every MDT
+ do_nodes $(comma_list $(mdts_nodes)) \
+ "$LCTL set_param -n osd*.*MDT*.force_sync=1"
+
+ # wait for a while to cancel update logs after transactions committed.
+ sleep 3
+
+ # sync again to guarantee all things done.
+ do_nodes $(comma_list $(mdts_nodes)) \
+ "$LCTL set_param -n osd*.*MDT*.force_sync=1"
+