Github user lvdongr commented on the issue:
https://github.com/apache/spark/pull/17203
You can see this issue ,and this is a problem of cached KafkaConsumer,
https://issues.apache.org/jira/browse/SPARK-19185, and a commentator
suggest the same method not to use cached kafka consumer. Besides ,only if
users can choose different method,they can choose the best way for their own
situation.
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