cleanup after the test concode_field_sep MiniDFSCluster cluster concode_elem_sep FSNamesystem namesystem concode_elem_sep int namenodeId concode_elem_sep DFSClient client concode_elem_sep Configuration conf concode_elem_sep RetryCacheMetrics metrics concode_elem_sep DistributedFileSystem filesystem concode_field_sep void checkMetrics concode_elem_sep void testRetryCacheMetrics concode_elem_sep void trySaveNamespace concode_elem_sep void setup
void function ( ) { if ( cluster != null ) { cluster . shutdown ( ) ; } }