private void insertData(final TableName tableName, Admin admin, Table t) throws IOException {
    insertData(tableName, admin, t, 1);
  }
Verifies HBASE-5806. Here the case is that splitting is completed but before the CJ could
remove the parent region the master is killed and restarted.
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestSplitTransactionOnCluster.java