question: checks the status of executor service concode_field_sep Path hdfsOutputPath concode_elem_sep DateUtil.TimeDiff resultsetRetention concode_elem_sep MetricsService metricsService concode_elem_sep String QUERY_RESULT_PURGER_ERROR_COUNTER concode_elem_sep DateUtil.TimeDiff hdfsOutputRetention concode_elem_sep ScheduledExecutorService queryResultPurgerExecutor concode_elem_sep Configuration conf concode_elem_sep Path resultsetPath concode_field_sep void init concode_elem_sep void stop concode_elem_sep boolean canBePurged concode_elem_sep MetricsService getMetrics concode_elem_sep void run concode_elem_sep void purgePaths
target: boolean function ( ) { if ( null == queryResultPurgerExecutor || queryResultPurgerExecutor . isShutdown ( ) || queryResultPurgerExecutor . isTerminated ( ) ) { return false ; } return true ; }