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https://issues.apache.org/jira/browse/FLINK-7974?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16247473#comment-16247473
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ASF GitHub Bot commented on FLINK-7974:
---------------------------------------
Github user tillrohrmann commented on a diff in the pull request:
https://github.com/apache/flink/pull/4993#discussion_r150228196
--- 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));
--- End diff --
result of channel future is ignored.
> AbstractServerBase#shutdown does not wait for shutdown completion
> -----------------------------------------------------------------
>
> Key: FLINK-7974
> URL: https://issues.apache.org/jira/browse/FLINK-7974
> Project: Flink
> Issue Type: Bug
> Components: Queryable State
> Affects Versions: 1.4.0
> Reporter: Till Rohrmann
> Assignee: Kostas Kloudas
> Priority: Critical
>
> The {{AbstractServerBase}} does not wait for the completion of its shutdown
> when calling {{AbstractServerBase#shutdown}}. This is problematic since it
> leads to resource leaks and instable tests such as the
> {{AbstractServerTest}}. I propose to let the {{AbstractServerBase#shutdown}}
> return a termination future which is completed upon shutdown completion.
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