question: grab the jobtracker system directory path where job-specific files will be placed . concode_field_sep Path sysDir concode_elem_sep Path jobHistoryDir concode_elem_sep ClientProtocolProvider clientProtocolProvider concode_elem_sep UserGroupInformation ugi concode_elem_sep Log LOG concode_elem_sep ServiceLoader<ClientProtocolProvider> frameworkLoader concode_elem_sep ClientProtocol client concode_elem_sep Configuration conf concode_elem_sep Path stagingAreaDir concode_elem_sep FileSystem fs concode_field_sep TaskTrackerInfo[] getBlackListedTaskTrackers concode_elem_sep ClusterMetrics getClusterStatus concode_elem_sep void cancelDelegationToken concode_elem_sep TaskTrackerInfo[] getActiveTaskTrackers concode_elem_sep Job[] getAllJobs concode_elem_sep Job[] getJobs concode_elem_sep Job getJob concode_elem_sep LogParams getLogParams concode_elem_sep QueueInfo[] getRootQueues concode_elem_sep QueueInfo getQueue concode_elem_sep JobTrackerStatus getJobTrackerStatus concode_elem_sep void close concode_elem_sep JobStatus[] getAllJobStatuses concode_elem_sep Configuration getConf concode_elem_sep long renewDelegationToken concode_elem_sep ClientProtocol getClient concode_elem_sep FileSystem getFileSystem concode_elem_sep String getJobHistoryUrl concode_elem_sep QueueAclsInfo[] getQueueAclsForCurrentUser concode_elem_sep QueueInfo[] getQueues concode_elem_sep void initialize concode_elem_sep QueueInfo[] getChildQueues concode_elem_sep long getTaskTrackerExpiryInterval concode_elem_sep Token<DelegationTokenIdentifier> getDelegationToken concode_elem_sep Path getStagingAreaDir
target: Path function ( ) { if ( sysDir == null ) { sysDir = new Path ( client . getSystemDir ( ) ) ; } return sysDir ; }