public static TransitRegionStateProcedure reopen(MasterProcedureEnv env, RegionInfo region) {
    return setOwner(env,
      new TransitRegionStateProcedure(env, region, null, false, TransitionType.REOPEN));
  }
At end of timeout, wake ourselves up so we run again.
hbase-server/src/main/java/org/apache/hadoop/hbase/master/assignment/TransitRegionStateProcedure.java