[ https://issues.apache.org/jira/browse/KAFKA-7692?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ming Liu updated KAFKA-7692: ---------------------------- Description: 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$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) {noformat} was: When operating Kafka, we frequently saw this exception on Kafka server log, Exception: [2018-06-04 20:44:53,789] ERROR [KafkaServer id=19] Fatal error during KafkaServer startup. Prepare to shutdown (kafka.server.KafkaServer) java.lang.NullPointerException at kafka.log.Log.kafka$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$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) > updateFirstUnstableOffset NPE due to sequenceId overflow in > ProducerStateManager.append > --------------------------------------------------------------------------------------- > > Key: KAFKA-7692 > URL: https://issues.apache.org/jira/browse/KAFKA-7692 > Project: Kafka > Issue Type: Bug > Components: core > Affects Versions: 2.0.0 > Reporter: Ming Liu > Priority: Major > Fix For: 2.2.0 > > > When operating Kafka, we frequently saw this exception on Kafka server log, > {noformat} > ERROR [KafkaServer id=19] Fatal error during KafkaServer startup. Prepare to > shutdown (kafka.server.KafkaServer) > java.lang.NullPointerException > at kafka.log.Log.kafka$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} > -- This message was sent by Atlassian JIRA (v7.6.3#76005)