tillrohrmann commented on a change in pull request #14528:
URL: https://github.com/apache/flink/pull/14528#discussion_r550443289
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/netty/PartitionRequestClientFactory.java
##########
@@ -69,36 +68,34 @@
NettyPartitionRequestClient createPartitionRequestClient(ConnectionID
connectionId)
throws IOException, InterruptedException {
while (true) {
- AtomicBoolean isTheFirstOne = new AtomicBoolean(false);
- CompletableFuture<NettyPartitionRequestClient> clientFuture =
- clients.computeIfAbsent(
- connectionId,
- unused -> {
- isTheFirstOne.set(true);
- return new CompletableFuture<>();
- });
- if (isTheFirstOne.get()) {
+ final CompletableFuture<NettyPartitionRequestClient>
newClientFuture =
+ new CompletableFuture<>();
+
+ final CompletableFuture<NettyPartitionRequestClient> clientFuture =
+ clients.putIfAbsent(connectionId, newClientFuture);
+
+ final NettyPartitionRequestClient client;
+
+ if (clientFuture == null) {
try {
- clientFuture.complete(connectWithRetries(connectionId));
- } catch (InterruptedException e) {
- clientFuture.complete(null); // let others waiting know
that they should retry
+ client = connectWithRetries(connectionId);
+ } catch (RemoteTransportException | InterruptedException e) {
Review comment:
My assumption was that uncaught exceptions will trigger a fatal failure.
If this isn't the case, then we should indeed catch all exceptions here.
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