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https://issues.apache.org/jira/browse/FLINK-7974?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16247475#comment-16247475
]
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_r150229482
--- Diff:
flink-queryable-state/flink-queryable-state-client-java/src/main/java/org/apache/flink/queryablestate/network/Client.java
---
@@ -483,27 +511,31 @@ private boolean close(Throwable cause) {
@Override
public void onRequestResult(long requestId, RESP response) {
TimestampedCompletableFuture pending =
pendingRequests.remove(requestId);
- if (pending != null && pending.complete(response)) {
+ if (pending != null && !pending.isDone()) {
long durationMillis = (System.nanoTime() -
pending.getTimestamp()) / 1_000_000L;
stats.reportSuccessfulRequest(durationMillis);
+ pending.complete(response);
}
}
@Override
public void onRequestFailure(long requestId, Throwable cause) {
TimestampedCompletableFuture pending =
pendingRequests.remove(requestId);
- if (pending != null &&
pending.completeExceptionally(cause)) {
+ if (pending != null && !pending.isDone()) {
stats.reportFailedRequest();
+ pending.completeExceptionally(cause);
}
}
@Override
public void onFailure(Throwable cause) {
- if (close(cause)) {
- // Remove from established channels, otherwise
future
- // requests will be handled by this failed
channel.
- establishedConnections.remove(serverAddress,
this);
- }
+ close(cause).thenAccept(cancelled -> {
+ if (cancelled) {
--- End diff --
Why do we only remove `this` from `establischedConnections` if `cancelled`
is true?
> 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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