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https://issues.apache.org/jira/browse/SPARK-17147?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15728326#comment-15728326
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caolan commented on SPARK-17147:
--------------------------------
Will createDirectStream also be fixed.
I hit the same issue, but I use KafkaUtils.createDirectStream() for compact
mode kafka topics.
BTW, I hit another issue recently, this is not a delete mode kafka topic, but
it had the similar error log.
-----------------------------------------
User class threw exception: org.apache.spark.SparkException: Job aborted due to
stage failure: Task 0 in stage 501.0 failed 4 times, most recent failure: Lost
task 0.3 in stage 501.0 (TID 505, siwu24yarn21xxxxx.com):
java.lang.AssertionError: assertion failed: Failed to get records for
spark-executor-xxxxxContext..dXa3AOoH 1029.job.dXa3AOoH.data 0 128825069 after
polling for 512
at scala.Predef$.assert(Predef.scala:170)
at
org.apache.spark.streaming.kafka010.CachedKafkaConsumer.get(CachedKafkaConsumer.scala:74)
at
org.apache.spark.streaming.kafka010.KafkaRDD$KafkaRDDIterator.next(KafkaRDD.scala:227)
at
org.apache.spark.streaming.kafka010.KafkaRDD$KafkaRDDIterator.next(KafkaRDD.scala:193)
at scala.collection.convert.Wrappers$IteratorWrapper.next(Wrappers.scala:31)
> Spark Streaming Kafka 0.10 Consumer Can't Handle Non-consecutive Offsets
> (i.e. Log Compaction)
> ----------------------------------------------------------------------------------------------
>
> Key: SPARK-17147
> URL: https://issues.apache.org/jira/browse/SPARK-17147
> Project: Spark
> Issue Type: Bug
> Components: DStreams
> Affects Versions: 2.0.0
> Reporter: Robert Conrad
>
> When Kafka does log compaction offsets often end up with gaps, meaning the
> next requested offset will be frequently not be offset+1. The logic in
> KafkaRDD & CachedKafkaConsumer has a baked in assumption that the next offset
> will always be just an increment of 1 above the previous offset.
> I have worked around this problem by changing CachedKafkaConsumer to use the
> returned record's offset, from:
> {{nextOffset = offset + 1}}
> to:
> {{nextOffset = record.offset + 1}}
> and changed KafkaRDD from:
> {{requestOffset += 1}}
> to:
> {{requestOffset = r.offset() + 1}}
> (I also had to change some assert logic in CachedKafkaConsumer).
> There's a strong possibility that I have misconstrued how to use the
> streaming kafka consumer, and I'm happy to close this out if that's the case.
> If, however, it is supposed to support non-consecutive offsets (e.g. due to
> log compaction) I am also happy to contribute a PR.
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