pnowojski commented on a change in pull request #17572:
URL: https://github.com/apache/flink/pull/17572#discussion_r738225561
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/checkpoint/CheckpointsCleaner.java
##########
@@ -89,9 +95,34 @@ private void cleanup(
checkpoint.getCheckpointID(),
e);
} finally {
- numberOfCheckpointsToClean.decrementAndGet();
+ decrementNumberOfCheckpointsToClean();
postCleanupAction.run();
}
});
}
+
+ private synchronized void decrementNumberOfCheckpointsToClean() {
+ numberOfCheckpointsToClean--;
+ maybeCompleteCloseUnsafe();
+ }
+
+ private void maybeCompleteCloseUnsafe() {
+ if (numberOfCheckpointsToClean == 0 && cleanUpFuture != null) {
+ cleanUpFuture.complete(null);
+ }
+ }
+
+ private synchronized void incrementNumberOfCheckpointsToClean() {
+ checkState(cleanUpFuture == null, "CheckpointsCleaner has already been
closed");
+ numberOfCheckpointsToClean++;
+ }
+
+ @Override
+ public synchronized CompletableFuture<Void> closeAsync() {
+ if (cleanUpFuture == null) {
+ cleanUpFuture = new CompletableFuture<>();
Review comment:
After an offline discussion we agreed that this proposal is fine, while
alternative would be more complicated.
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