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_r223290601
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/partition/ResultPartition.java
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@@ -94,6 +96,19 @@
/** The subpartitions of this partition. At least one. */
private final ResultSubpartition[] subpartitions;
+ /**
+ * Subset of {@code subpartitions} that are definitely local. We can
only determine whether a
+ * subpartition is local or not once it's read view was created.
+ */
+ private final ArrayList<ResultSubpartition> localSubpartitions = new
ArrayList<>();
Review comment:
It would be nice, if you could also `trimToSize()` this once you know.
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