TanYuxin-tyx commented on code in PR #22833:
URL: https://github.com/apache/flink/pull/22833#discussion_r1244830366
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flink-runtime/src/main/java/org/apache/flink/runtime/io/network/partition/hybrid/tiered/storage/BufferAccumulator.java:
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@@ -44,9 +44,21 @@ public interface BufferAccumulator extends AutoCloseable {
/**
* Receives the records from tiered store producer, these records will be
accumulated and
* transformed into finished buffers.
+ *
+ * <p>Note that when isBroadcast is true, for a broadcast-only partition,
the subpartitionId
+ * value will always be 0. Conversely, for a non-broadcast-only partition
(such as an all-to-all
Review Comment:
yes, Removed the description of `all-to-all` partition.
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