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From Hrishikesh Mishra <sd.hri...@gmail.com>
Subject Spark Streaming on Compact Kafka topic - consumers 1 message per partition per batch
Date Wed, 01 Apr 2020 06:30:39 GMT
Hi

Our Spark streaming job was working fine as expected (the number of events
to process in a batch). But due to some reasons, we added compaction on
Kafka topic and restarted the job. But after restart it was failing for
below reason:


org.apache.spark.SparkException: Job aborted due to stage failure: Task 16
in stage 2.0 failed 4 times, most recent failure: Lost task 16.3 in stage
2.0 (TID 231, 10.34.29.38, executor 4): java.lang.IllegalArgumentException:
requirement failed: Got wrong record for
spark-executor-pc-nfr-loop-31-march-2020-4 demandIngestion.SLTarget-39 even
after seeking to offset 106847 got offset 199066 instead. If this is a
compacted topic, consider enabling
spark.streaming.kafka.allowNonConsecutiveOffsets
  at scala.Predef$.require(Predef.scala:224)
  at
org.apache.spark.streaming.kafka010.InternalKafkaConsumer.get(KafkaDataConsumer.scala:146)



So, I added spark.streaming.kafka.allowNonConsecutiveOffsets: true  in
spark config and I changed the group name to consume from beginning. Now
the problem is, it reading only one message from per partition. So if a
topic has 50 partitions then its reading 50 message per batch (batch
duration is 5 sec).

The topic is 1M records and consumer has huge lag.


Driver log which fetches 1 message per partition.

20/03/31 18:25:55 INFO Fetcher: [groupId=pc-nfr-loop-31-march-2020-4]
Resetting offset for partition demandIngestion.SLTarget-45 to offset 211951.
20/03/31 18:26:00 INFO Fetcher: [groupId=pc-nfr-loop-31-march-2020-4]
Resetting offset for partition demandIngestion.SLTarget-45 to offset 211952.
20/03/31 18:26:05 INFO Fetcher: [groupId=pc-nfr-loop-31-march-2020-4]
Resetting offset for partition demandIngestion.SLTarget-45 to offset 211953.
20/03/31 18:26:10 INFO Fetcher: [groupId=pc-nfr-loop-31-march-2020-4]
Resetting offset for partition demandIngestion.SLTarget-45 to offset 211954.
20/03/31 18:26:15 INFO Fetcher: [groupId=pc-nfr-loop-31-march-2020-4]
Resetting offset for partition demandIngestion.SLTarget-45 to offset 211955.
20/03/31 18:26:20 INFO Fetcher: [groupId=pc-nfr-loop-31-march-2020-4]
Resetting offset for partition demandIngestion.SLTarget-45 to offset 211956.
20/03/31 18:26:25 INFO Fetcher: [groupId=pc-nfr-loop-31-march-2020-4]
Resetting offset for partition demandIngestion.SLTarget-45 to offset 211957.
20/03/31 18:26:30 INFO Fetcher: [groupId=pc-nfr-loop-31-march-2020-4]
Resetting offset for partition demandIngestion.SLTarget-45 to offset 211958.
20/03/31 18:26:35 INFO Fetcher: [groupId=pc-nfr-loop-31-march-2020-4]
Resetting offset for partition demandIngestion.SLTarget-45 to offset 211959.
20/03/31 18:26:40 INFO Fetcher: [groupId=pc-nfr-loop-31-march-2020-4]
Resetting offset for partition demandIngestion.SLTarget-45 to offset 211960.
20/03/31 18:26:45 INFO Fetcher: [groupId=pc-nfr-loop-31-march-2020-4]
Resetting offset for partition demandIngestion.SLTarget-45 to offset 211961.
20/03/31 18:26:50 INFO Fetcher: [groupId=pc-nfr-loop-31-march-2020-4]
Resetting offset for partition demandIngestion.SLTarget-45 to offset 211962.
20/03/31 18:26:55 INFO Fetcher: [groupId=pc-nfr-loop-31-march-2020-4]
Resetting offset for partition demandIngestion.SLTarget-45 to offset 211963.
20/03/31 18:27:00 INFO Fetcher: [groupId=pc-nfr-loop-31-march-2020-4]
Resetting offset for partition demandIngestion.SLTarget-45 to offset 211964.
20/03/31 18:27:05 INFO Fetcher: [groupId=pc-nfr-loop-31-march-2020-4]
Resetting offset for partition demandIngestion.SLTarget-45 to offset 211965.
20/03/31 18:27:10 INFO Fetcher: [groupId=pc-nfr-loop-31-march-2020-4]
Resetting offset for partition demandIngestion.SLTarget-45 to offset 211966.
20/03/31 18:27:15 INFO Fetcher: [groupId=pc-nfr-loop-31-march-2020-4]
Resetting offset for partition demandIngestion.SLTarget-45 to offset 211967.
20/03/31 18:27:20 INFO Fetcher: [groupId=pc-nfr-loop-31-march-2020-4]
Resetting offset for partition demandIngestion.SLTarget-45 to offset 211968.
20/03/31 18:27:25 INFO Fetcher: [groupId=pc-nfr-loop-31-march-2020-4]
Resetting offset for partition demandIngestion.SLTarget-45 to offset 211969.
20/03/31 18:27:30 INFO Fetcher: [groupId=pc-nfr-loop-31-march-2020-4]
Resetting offset for partition demandIngestion.SLTarget-45  to offset
211970.



Spark Config (batch.duration: 5, using Spark Stream) :

  spark.shuffle.service.enabled: "true"

  spark.streaming.backpressure.enabled: "true"

  spark.streaming.concurrentJobs: "1"

  spark.executor.extraJavaOptions: "-XX:+UseConcMarkSweepGC"

  spark.streaming.backpressure.pid.minRate: 1500

  spark.streaming.backpressure.initialRate: 100

  spark.streaming.kafka.allowNonConsecutiveOffsets: true



Is there any issue in my configuration or something special required with
compact Kafka topic which I'm missing?




Regards
Hrishi

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