rkhachatryan commented on a change in pull request #14509:
URL: https://github.com/apache/flink/pull/14509#discussion_r549688436
##########
File path:
flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/io/StreamTaskNetworkInput.java
##########
@@ -73,21 +72,20 @@
private final DeserializationDelegate<StreamElement>
deserializationDelegate;
- private final RecordDeserializer<DeserializationDelegate<StreamElement>>[]
recordDeserializers;
+ private final Map<InputChannelInfo,
RecordDeserializer<DeserializationDelegate<StreamElement>>>
Review comment:
Yes, once per buffer. Moreover, map access was already there before:
```
private void processBuffer(BufferOrEvent bufferOrEvent) throws
IOException {
lastChannel = channelIndexes.get(bufferOrEvent.getChannelInfo());
```
so it shouldn't make any difference.
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