public void unassignRegionByRow(String row, RegionLocator table) throws IOException {
    unassignRegionByRow(Bytes.toBytes(row), table);
  }
Closes the region containing the given row.
@param row   The row to find the containing region.
@param table The table to find the region.
hbase-testing-util/src/main/java/org/apache/hadoop/hbase/HBaseTestingUtility.java