[GitHub] flink issue #4321: [FLINK-7174] Bump Kafka 0.10 dependency to 0.10.2.1

[StephanEwen <gi...@git.apache.org>]

Github user StephanEwen commented on the issue:

    https://github.com/apache/flink/pull/4321
  
    I think this pull request will make the Kafka consumer go into a hot busy waiting loop when it has no partitions assigned.
    
    I would suggest to do a blocking `take()` or so on the `unassignedPartitionsQueue`.
    
    Also, would be great to get around the instance variable, and simply check how many partitions are assigned on the KafkaConsumer, or pass this via a return value of the `reassignPartitions()` function.


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