Github user tillrohrmann commented on a diff in the pull request:
https://github.com/apache/flink/pull/4993#discussion_r150228589
--- Diff:
flink-queryable-state/flink-queryable-state-client-java/src/main/java/org/apache/flink/queryablestate/network/Client.java
---
@@ -419,20 +440,27 @@ void close() {
* @param cause The cause to close the channel with.
* @return Channel close future
*/
- private boolean close(Throwable cause) {
+ private CompletableFuture<Boolean> close(Throwable cause) {
+ final CompletableFuture<Boolean> shutdownFuture = new
CompletableFuture<>();
if (failureCause.compareAndSet(null, cause)) {
- channel.close();
- stats.reportInactiveConnection();
+ final CompletableFuture<?> tmp = new
CompletableFuture<>();
+ channel.close().addListener(finished ->
tmp.complete(null));
- for (long requestId : pendingRequests.keySet())
{
- TimestampedCompletableFuture pending =
pendingRequests.remove(requestId);
- if (pending != null &&
pending.completeExceptionally(cause)) {
- stats.reportFailedRequest();
+ tmp.thenRun(() -> {
--- End diff --
Instead of creating the additional indirection with `shutdownFuture`,
couldn't we simply return the result here as teh shutdown future?
---
