LvDongrong created SPARK-19863:
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Summary: Whether or not use CachedKafkaConsumer need to be
configured, when you use DirectKafkaInputDStream to connect the kafka in a
Spark Streaming application
Key: SPARK-19863
URL: https://issues.apache.org/jira/browse/SPARK-19863
Project: Spark
Issue Type: Bug
Components: DStreams, Input/Output
Affects Versions: 2.1.0
Reporter: LvDongrong
Whether or not use CachedKafkaConsumer need to be configured, when you use
DirectKafkaInputDStream to connect the kafka in a Spark Streaming application.
In Spark 2.x, the kafka consumer was replaced by CachedKafkaConsumer (some
KafkaConsumer will keep establishing the kafka cluster), and cannot change the
way. In fact ,The KafkaRDD(used by DirectKafkaInputDStream to connect kafka)
provide the parameter useConsumerCache to choose Whether to use the
CachedKafkaConsumer, but the DirectKafkaInputDStream set the parameter true.
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