StefanRRichter commented on a change in pull request #8361:
[FLINK-12434][network] Replace listeners with CompletableFuture in InputGates
URL: https://github.com/apache/flink/pull/8361#discussion_r282023881
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/partition/consumer/SingleInputGate.java
##########
@@ -551,21 +551,20 @@ public void requestPartitions() throws IOException,
InterruptedException {
}
currentChannel = inputChannelsWithData.remove();
-
enqueuedInputChannelsWithData.clear(currentChannel.getChannelIndex());
+
+ result = currentChannel.getNextBuffer();
+
+ if (result.isPresent() &&
result.get().moreAvailable()) {
+ // enqueue the currentChannel at the
end to avoid starvation
Review comment:
Nit: if we split the if, we can already add a `break` here and avoid
checking `!result.isPresent()` again in the loop.
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