GJL commented on a change in pull request #10067: [FLINK-14375][runtime] Avoid
to notify scheduler about fake or outdated state update
URL: https://github.com/apache/flink/pull/10067#discussion_r342039308
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/scheduler/SchedulerBase.java
##########
@@ -417,12 +417,55 @@ public void cancel() {
@Override
public final boolean updateTaskExecutionState(final TaskExecutionState
taskExecutionState) {
final Optional<ExecutionVertexID> executionVertexId =
getExecutionVertexId(taskExecutionState.getID());
- if (executionVertexId.isPresent()) {
- executionGraph.updateState(taskExecutionState);
-
updateTaskExecutionStateInternal(executionVertexId.get(), taskExecutionState);
+
+ boolean updateSuccess =
executionGraph.updateState(taskExecutionState);
+
+ if (updateSuccess && executionVertexId.isPresent()) {
+ Optional<TaskExecutionState> validTaskExecutionState =
getValidTaskExecutionState(
+ executionVertexId.get(),
+ taskExecutionState);
+
+ if (validTaskExecutionState.isPresent()) {
+
updateTaskExecutionStateInternal(executionVertexId.get(),
validTaskExecutionState.get());
+ }
return true;
+ } else {
+ return false;
+ }
+ }
+
+ private Optional<TaskExecutionState> getValidTaskExecutionState(
+ final ExecutionVertexID executionVertexId,
+ final TaskExecutionState taskExecutionState) {
+
+ final ExecutionVertex executionVertex =
getExecutionVertex(executionVertexId);
+ final ExecutionAttemptID currentExecutionAttemptID =
executionVertex.getCurrentExecutionAttempt().getAttemptId();
+
+ // check whether this state update is outdated
+ if
(!currentExecutionAttemptID.equals(taskExecutionState.getID())) {
+ return Optional.empty();
}
- return false;
+
+ // only notifies FINISHED and FAILED states which are needed at
the moment.
+ // can be refined in FLINK-14233 after the legacy scheduler is
removed and
+ // the actions are factored out from ExecutionGraph.
+ switch (taskExecutionState.getExecutionState()) {
Review comment:
Would there be harm to notify all states?
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