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https://issues.apache.org/jira/browse/KAFKA-7692?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16751740#comment-16751740
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ASF GitHub Bot commented on KAFKA-7692:
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hachikuji commented on pull request #5990: KAFKA-7692: Fix ProduceStateManager
SequenceNumber overflow.
URL: https://github.com/apache/kafka/pull/5990
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> updateFirstUnstableOffset NPE due to sequenceId overflow in
> ProducerStateManager.append
> ---------------------------------------------------------------------------------------
>
> Key: KAFKA-7692
> URL: https://issues.apache.org/jira/browse/KAFKA-7692
> Project: Kafka
> Issue Type: Bug
> Components: core
> Affects Versions: 2.0.0
> Reporter: Ming Liu
> Priority: Major
> Labels: easyfix
> Fix For: 2.2.0
>
>
> When operating Kafka, we frequently saw this exception on Kafka server log,
> {noformat}
> ERROR [KafkaServer id=19] Fatal error during KafkaServer startup. Prepare to
> shutdown (kafka.server.KafkaServer)
> java.lang.NullPointerException
> at kafka.log.Log.kafka$log$Log$$updateFirstUnstableOffset(Log.scala:792)
> at kafka.log.Log.kafka$log$Log$$loadProducerState(Log.scala:518)
> at kafka.log.Log.<init>(Log.scala:228)
> at kafka.log.Log$.apply(Log.scala:1747)
> at
> kafka.log.LogManager.kafka$log$LogManager$$loadLog(LogManager.scala:255)
> at
> kafka.log.LogManager$$anonfun$loadLogs$2$$anonfun$11$$anonfun$apply$15$$anonfun$apply$2.apply$mcV$sp(LogManager.scala:335)
> at kafka.utils.CoreUtils$$anon$1.run(CoreUtils.scala:62)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> {noformat}
>
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