acelyc111 commented on a change in pull request #4597:
URL: https://github.com/apache/incubator-doris/pull/4597#discussion_r487661840



##########
File path: be/src/agent/task_worker_pool.cpp
##########
@@ -1007,13 +1038,18 @@ void 
TaskWorkerPool::_report_task_worker_thread_callback() {
 
         if (status != DORIS_SUCCESS) {
             
DorisMetrics::instance()->report_task_requests_failed->increment(1);
-            LOG(WARNING) << "finish report task failed. status:" << status << 
", master host:"
+            LOG(WARNING) << "report task failed. status:" << status << ", 
master host:"

Review comment:
       ```suggestion
               LOG(WARNING) << "report task failed. status: " << status << ", 
master host: "
   ```

##########
File path: be/src/agent/task_worker_pool.h
##########
@@ -43,6 +43,8 @@ class ThreadPool;
 
 class TaskWorkerPool {
 public:
+    // You need to modify the content in TYPE_STRING at the same time,

Review comment:
       Maybe it's not easy to keep order consistency some days later, how about 
use a function to get name of type?

##########
File path: be/src/olap/storage_engine.cpp
##########
@@ -975,11 +975,17 @@ void 
StorageEngine::deregister_report_listener(TaskWorkerPool* listener) {
     _report_listeners.erase(listener);
 }
 
-void StorageEngine::notify_listeners() {
+/// if submit_task is true, it will notify the listeners by submmiting a task.
+/// otherwise, it just notify the thread
+void StorageEngine::notify_listeners(bool submit_task) {
     std::lock_guard<std::mutex> l(_report_mtx);
     for (auto& listener : _report_listeners) {
-        TAgentTaskRequest task;
-        listener->submit_task(task);
+        if (submit_task) {
+            TAgentTaskRequest task;
+            listener->submit_task(task);

Review comment:
       Seems all callers pass a 'false' parameter, how about remove these code?

##########
File path: be/src/agent/task_worker_pool.cpp
##########
@@ -1007,13 +1038,18 @@ void 
TaskWorkerPool::_report_task_worker_thread_callback() {
 
         if (status != DORIS_SUCCESS) {
             
DorisMetrics::instance()->report_task_requests_failed->increment(1);
-            LOG(WARNING) << "finish report task failed. status:" << status << 
", master host:"
+            LOG(WARNING) << "report task failed. status:" << status << ", 
master host:"

Review comment:
       The same to other places.




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