public void unassignRegionByRow(byte[] row, RegionLocator table) throws IOException {
    HRegionLocation hrl = table.getRegionLocation(row);
    unassignRegion(hrl.getRegion().getRegionName());
  }
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