question: make local-dirs fail/inaccessible and verify if nodemanager can recognize the disk failures properly and can update the list of local-dirs accordingly with good disks . also verify the overall health status of the node . concode_field_sep int numLogDirs concode_elem_sep long DISK_HEALTH_CHECK_INTERVAL concode_elem_sep File testDir concode_elem_sep FileContext localFS concode_elem_sep Log LOG concode_elem_sep File localFSDirBase concode_elem_sep MiniYARNCluster yarnCluster concode_elem_sep int numLocalDirs concode_elem_sep LocalDirsHandlerService dirsHandler concode_field_sep void prepareDirToFail concode_elem_sep void testLogDirsFailures concode_elem_sep void testDirFailuresOnStartup concode_elem_sep void setup concode_elem_sep void verifyDisksHealth concode_elem_sep void testDirsFailures concode_elem_sep void teardown concode_elem_sep void waitForDiskHealthCheck
target: void function ( ) { testDirsFailures ( true ) ; }