private void rollbackPrepareSplit(final MasterProcedureEnv env) {
    RegionStateNode parentRegionStateNode =
      env.getAssignmentManager().getRegionStates().getRegionStateNode(getParentRegion());
    if (parentRegionStateNode.getState() == State.SPLITTING) {
      parentRegionStateNode.setState(State.OPEN);
    }
  }
Rollback prepare split region
@param env MasterProcedureEnv
hbase-server/src/main/java/org/apache/hadoop/hbase/master/assignment/SplitTableRegionProcedure.java