http://spark.apache.org/docs/latest/streaming-kafka-0-10-integration.html#storing-offsets
offsets/http://spark.apache.org/docs/late/offset/spark-streaming-kafka010/事务/保存/方式/kafka/st/streaming-kafka-0-10/integration.html/
offsets/http://spark.apache.org/docs/late/offset/spark-streaming-kafka010/事务/保存/方式/kafka/st/streaming-kafka-0-10/integration.html/
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