NicoK commented on a change in pull request #6698: [FLINK-8581][network] Move
flushing remote subpartitions from OutputFlusher to netty
URL: https://github.com/apache/flink/pull/6698#discussion_r223341962
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/partition/ResultSubpartition.java
##########
@@ -106,11 +109,32 @@ protected Throwable getFailureCause() {
abstract public void flush();
+ /**
+ * Remote subpartitions support automatic periodic flush. This is the
method to register it.
+ * Can only by used after {@link #isLocal()} state is known.
+ */
+ public abstract void registerPeriodicFlush(long flushTimeout);
+
+ /**
+ * @return empty if {@link #createReadView(BufferAvailabilityListener)}
has not been yet called.
+ * Afterwards returns {@code Optional.of(true)} or {@code
Optional.of(false)}
+ */
+ public Optional<Boolean> isLocal() {
+ return isLocal;
+ }
Review comment:
`isLocal` may not be required after the proposed change above
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