[GitHub] [incubator-doris] caiconghui edited a comment on issue #4046: [ThreadPool Resource Leak]There are more and more scheduler thread in our production environment

[GitBox]

caiconghui edited a comment on issue #4046:
URL: 
https://github.com/apache/incubator-doris/issues/4046#issuecomment-654852287


   Here, we start the thread in MasterTaskExecutor
   
       public MasterTaskExecutor(int threadNum) {
           executor = ThreadPoolManager.newScheduledThreadPool(threadNum, 
"Master-Task-Executor-Pool");
           runningTasks = Maps.newHashMap();
           executor.scheduleAtFixedRate(new TaskChecker(), 0L, 1000L, 
TimeUnit.MILLISECONDS);
       }
   
   
https://github.com/apache/incubator-doris/blob/master/fe/src/main/java/org/apache/doris/task/MasterTaskExecutor.java#L39-#L43
   
   in catalog ,we init loadTaskScheduler, we cannot gc loadTaskScheduler when 
checkpoint catalog is set to be null
   
https://github.com/apache/incubator-doris/blob/c9a7c373a709a9d8c195eaf4245fb06c1cc667fe/fe/src/main/java/org/apache/doris/catalog/Catalog.java#L527


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