xintongsong commented on a change in pull request #16640:
URL: https://github.com/apache/flink/pull/16640#discussion_r681377850
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/slotmanager/FineGrainedSlotManager.java
##########
@@ -111,6 +111,8 @@
@Nullable private ScheduledFuture<?> lastResourceRequirementsCheck;
+ @Nullable private CompletableFuture<Void> requirementsCheckFuture;
Review comment:
I wonder if we can remove `lastResourceRequirementsCheck`. Currently, it
is only used for canceling the check on closing. Alternatively, we can check
`started` in `checkResourceRequirements`.
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/slotmanager/FineGrainedSlotManager.java
##########
@@ -550,6 +555,7 @@ private void checkResourceRequirements() {
jobId, resourceTracker.getAcquiredResources(jobId));
}
}
+ requirementsCheckFuture.complete(null);
Review comment:
And maybe add a null check for `requirementsCheckFuture`.
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/slotmanager/FineGrainedSlotManager.java
##########
@@ -550,6 +555,7 @@ private void checkResourceRequirements() {
jobId, resourceTracker.getAcquiredResources(jobId));
}
}
+ requirementsCheckFuture.complete(null);
Review comment:
I'd suggest to deduplicate this by moving it to
`checkResourceRequirementsWithDelay`, after calling `checkResourceRequirements`.
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