[jira] [Created] (SPARK-19361) kafka.maxRatePerPartition for compacted topic cause exception

["Natalia Gorchakova (JIRA)" <ji...@apache.org>]

Natalia Gorchakova created SPARK-19361:
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             Summary: kafka.maxRatePerPartition for compacted topic cause exception
                 Key: SPARK-19361
                 URL: https://issues.apache.org/jira/browse/SPARK-19361
             Project: Spark
          Issue Type: Bug
          Components: DStreams
    Affects Versions: 1.6.1
            Reporter: Natalia Gorchakova


creating DirectKafkaInputDStream with param spark.streaming.kafka.maxRatePerPartition for compacted topic cause exception:

ERROR [Executor task launch worker-2] executor.Executor: Exception in task 1.0 in stage 2.0 (TID 22)
java.lang.AssertionError: assertion failed: Got 3740923 > ending offset 2428156 for topic COMPACTED.KAFKA.TOPIC partition 6 start 2228156. This should not happen, and indicates a message may have been skipped
  at scala.Predef$.assert(Predef.scala:179)
  at org.apache.spark.streaming.kafka.KafkaRDD$KafkaRDDIterator.getNext(KafkaRDD.scala:217)

as KafkaRDD expect maxOffset in batch <= startOffset + maxRatePerPartition*secondsInBatch. While for compacted topic some offsets can be missing. 



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