mxm commented on code in PR #21443:
URL: https://github.com/apache/flink/pull/21443#discussion_r1049729462
##########
flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/tasks/StreamTask.java:
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@@ -1614,6 +1617,15 @@
List<RecordWriter<SerializationDelegate<StreamRecord<OUT>>>> createRecordWriters
return recordWriters;
}
+ private static void
replaceForwardPartitionerIfConsumerParallelismDoesNotMatch(
+ Environment environment, NonChainedOutput streamOutput) {
+ if (streamOutput.getPartitioner() instanceof ForwardPartitioner
+ && streamOutput.getConsumerParallelism()
+ !=
environment.getTaskInfo().getNumberOfParallelSubtasks()) {
+ streamOutput.setPartitioner(new RescalePartitioner<>());
Review Comment:
Thanks @1996fanrui. It makes sense to use RebalancePartitioner.
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