AHeise commented on a change in pull request #11507: [FLINK-16587] Add basic
CheckpointBarrierHandler for unaligned checkpoint
URL: https://github.com/apache/flink/pull/11507#discussion_r408266677
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File path:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/partition/consumer/SingleInputGate.java
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@@ -170,9 +173,14 @@
private final CompletableFuture<Void> closeFuture;
+ @Nullable
+ protected BufferReceivedListener bufferReceivedListener;
Review comment:
Okay I opted to go with a volatile field now, but it's properly encapsulated
in a getter for future optimizations. I'd start simple first and we can always
make it more complicated after benchmarks demand it.
I'm hoping that a `volatile` read access right before entering synchronized
would kind of synergize, such that the cache pipe of the CPU is only cleared
once.
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