pnowojski commented on a change in pull request #9905: [FLINK-14396][network]
Implement rudimentary non-blocking network output
URL: https://github.com/apache/flink/pull/9905#discussion_r335313402
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/partition/consumer/SingleInputGate.java
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@@ -629,14 +627,9 @@ private void queueChannel(InputChannel channel) {
if (availableChannels == 0) {
inputChannelsWithData.notifyAll();
- toNotify = isAvailable;
- isAvailable = AVAILABLE;
+ resetAvailable();
}
}
-
- if (toNotify != null) {
- toNotify.complete(null);
- }
Review comment:
I've seen quite a bit deadlocks from exactly this kind of pattern, maybe not
in this exact place. I think it's a generally speaking good rule of trying to
decouple/release locks from the callbacks. We can not release the higher level
locks (from the callers), but still it would make our live a bit easier in the
future, if we hold as few locks as possible.
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