[SPARK-19361] kafka.maxRatePerPartition for compacted topic cause exception

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 1.6.1
• Component/s: DStreams
• Assignee: Unassigned
• Reporter: Natalia Gorchakova
• Created: 25/Jan/17 11:42
• Updated: 24/Apr/18 11:54
• Resolved: 26/Jan/17 13:44

Description

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.

Issue Links

• duplicates: SPARK-17147 Spark Streaming Kafka 0.10 Consumer Can't Handle Non-consecutive Offsets (i.e. Log Compaction)