WangJPLeo commented on code in PR #11464:
URL: https://github.com/apache/dolphinscheduler/pull/11464#discussion_r945118447
##########
dolphinscheduler-master/src/main/java/org/apache/dolphinscheduler/server/master/consumer/TaskPriorityQueueConsumer.java:
##########
@@ -176,6 +203,41 @@ public List<TaskPriority> batchDispatch(int fetchTaskNum)
throws TaskPriorityQue
return failedDispatchTasks;
}
+ /**
+ * put the failed dispatch task into the dispatch queue again
+ */
+ private void dispatchFailedBackToTaskPriorityQueue(int fetchTaskNum)
throws TaskPriorityQueueException, InterruptedException {
+ try {
+ for (int i = 0; i < fetchTaskNum; i++) {
+ TaskPriority dispatchFailedTaskPriority =
taskPriorityDispatchFailedQueue.poll(Constants.SLEEP_TIME_MILLIS,
TimeUnit.MILLISECONDS);
+ if (Objects.isNull(dispatchFailedTaskPriority)){
+ continue;
+ }
+ if (canRetry(dispatchFailedTaskPriority)){
+
dispatchFailedTaskPriority.setDispatchFailedRetryTimes(dispatchFailedTaskPriority.getDispatchFailedRetryTimes()
+ 1);
+ taskPriorityQueue.put(dispatchFailedTaskPriority);
+ } else {
+
taskPriorityDispatchFailedQueue.put(dispatchFailedTaskPriority);
+ }
+ }
+ } catch (Exception e) {
+ logger.error("dispatch failed back to task priority queue error",
e);
+ }
+ }
+
+ /**
+ * the time interval is adjusted according to the number of retries
+ */
+ private boolean canRetry (TaskPriority taskPriority){
+ int dispatchFailedRetryTimes =
taskPriority.getDispatchFailedRetryTimes();
+ long now = System.currentTimeMillis();
+ // retry more than 100 times with 100 seconds delay each time
+ if (dispatchFailedRetryTimes >= Constants.DEFAULT_MAX_RETRY_COUNT){
+ return now - taskPriority.getLastDispatchTime() >=
TIME_DELAY[Constants.DEFAULT_MAX_RETRY_COUNT];
Review Comment:
No, the number of retries will exceed the length of the array, and when it
exceeds, the value of the last element of the array will be used as the time
interval.
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