tillrohrmann commented on a change in pull request #9072: [FLINK-11630] Wait
for the termination of all running Tasks when shutting down TaskExecutor
URL: https://github.com/apache/flink/pull/9072#discussion_r313898605
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/taskexecutor/TaskExecutor.java
##########
@@ -1826,4 +1838,30 @@ public SlotReport retrievePayload(ResourceID
resourceID) {
return taskSlotTable.createSlotReport(getResourceID());
}
}
+
+ private static class TaskCompletionTracker {
+ private final Map<ExecutionAttemptID, Task> incompleteTasks;
+
+ private TaskCompletionTracker() {
+ incompleteTasks = new ConcurrentHashMap<>(8);
Review comment:
Why do we need a `ConcurrentHashMap`? Where does the concurrency come from?
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