[ https://issues.apache.org/jira/browse/KAFKA-4686?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15874455#comment-15874455 ]
Hannu Valtonen commented on KAFKA-4686: --------------------------------------- Hit this again in a test enviroment of ours: Kafka server log snippet: (this repeats ad infinitum) [2017-02-20 12:19:16,931] ERROR [KafkaApi-0] Error when handling request Name: FetchRequest; Version: 0; CorrelationId: 4; ClientId: kafka-python; ReplicaId: -1; MaxWait: 9999 ms; MinBytes: 1 bytes; MaxBytes:2147483647 bytes; RequestInfo: ([6c999dfb-231c-4e8d-9c5b-19010c550a87-msgs,0],PartitionFetchInfo(0,16777216)) (kafka.server.KafkaApis) kafka.common.KafkaException: Message payload is null: Message(magic = 0, attributes = 2, crc = 1331266146, key = null, payload = null) at kafka.message.ByteBufferMessageSet$$anon$1.<init>(ByteBufferMessageSet.scala:90) at kafka.message.ByteBufferMessageSet$.deepIterator(ByteBufferMessageSet.scala:85) at kafka.log.FileMessageSet$$anonfun$toMessageFormat$1.apply(FileMessageSet.scala:276) at kafka.log.FileMessageSet$$anonfun$toMessageFormat$1.apply(FileMessageSet.scala:269) at scala.collection.Iterator$class.foreach(Iterator.scala:893) at kafka.utils.IteratorTemplate.foreach(IteratorTemplate.scala:30) at scala.collection.IterableLike$class.foreach(IterableLike.scala:72) at kafka.message.MessageSet.foreach(MessageSet.scala:71) at kafka.log.FileMessageSet.toMessageFormat(FileMessageSet.scala:269) at kafka.server.KafkaApis$$anonfun$29.apply(KafkaApis.scala:490) at kafka.server.KafkaApis$$anonfun$29.apply(KafkaApis.scala:477) at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234) at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234) at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59) at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:48) at scala.collection.TraversableLike$class.map(TraversableLike.scala:234) at scala.collection.AbstractTraversable.map(Traversable.scala:104) at kafka.server.KafkaApis.kafka$server$KafkaApis$$sendResponseCallback$3(KafkaApis.scala:477) at kafka.server.KafkaApis$$anonfun$handleFetchRequest$1.apply(KafkaApis.scala:542) at kafka.server.KafkaApis$$anonfun$handleFetchRequest$1.apply(KafkaApis.scala:542) at kafka.server.ReplicaManager.fetchMessages(ReplicaManager.scala:497) at kafka.server.KafkaApis.handleFetchRequest(KafkaApis.scala:534) at kafka.server.KafkaApis.handle(KafkaApis.scala:79) at kafka.server.KafkaRequestHandler.run(KafkaRequestHandler.scala:60) at java.lang.Thread.run(Thread.java:745) Then the dumping you requested of the topic: /opt/kafka/bin/kafka-run-class.sh kafka.tools.DumpLogSegments --files /srv/kafka/6c999dfb-231c-4e8d-9c5b-19010c550a87-msgs-0/00000000000000000000.log --deep-iteration Dumping /srv/kafka/6c999dfb-231c-4e8d-9c5b-19010c550a87-msgs-0/00000000000000000000.log Starting offset: 0 offset: 0 position: 0 CreateTime: -1 isvalid: true payloadsize: 9438 magic: 1 compresscodec: NoCompressionCodec crc: 3724646734 offset: 1 position: 7227 CreateTime: -1 isvalid: true payloadsize: 9571 magic: 1 compresscodec: NoCompressionCodec crc: 942316008 offset: 2 position: 14504 CreateTime: -1 isvalid: true payloadsize: 9571 magic: 1 compresscodec: NoCompressionCodec crc: 2440026867 offset: 3 position: 21781 CreateTime: -1 isvalid: true payloadsize: 9571 magic: 1 compresscodec: NoCompressionCodec crc: 2902450727 Exception in thread "main" kafka.common.KafkaException: Message payload is null: Message(magic = 0, attributes = 2, crc = 1331266146, key = null, payload = null) at kafka.message.ByteBufferMessageSet$$anon$1.<init>(ByteBufferMessageSet.scala:90) at kafka.message.ByteBufferMessageSet$.deepIterator(ByteBufferMessageSet.scala:85) at kafka.tools.DumpLogSegments$.kafka$tools$DumpLogSegments$$getIterator(DumpLogSegments.scala:352) at kafka.tools.DumpLogSegments$$anonfun$kafka$tools$DumpLogSegments$$dumpLog$1.apply(DumpLogSegments.scala:311) at kafka.tools.DumpLogSegments$$anonfun$kafka$tools$DumpLogSegments$$dumpLog$1.apply(DumpLogSegments.scala:310) at scala.collection.Iterator$class.foreach(Iterator.scala:893) at kafka.utils.IteratorTemplate.foreach(IteratorTemplate.scala:30) at kafka.tools.DumpLogSegments$.kafka$tools$DumpLogSegments$$dumpLog(DumpLogSegments.scala:310) at kafka.tools.DumpLogSegments$$anonfun$main$1.apply(DumpLogSegments.scala:96) at kafka.tools.DumpLogSegments$$anonfun$main$1.apply(DumpLogSegments.scala:92) at scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33) at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:186) at kafka.tools.DumpLogSegments$.main(DumpLogSegments.scala:92) at kafka.tools.DumpLogSegments.main(DumpLogSegments.scala) kafka-topics.sh --describe for the topic: Topic:6c999dfb-231c-4e8d-9c5b-19010c550a87-msgs PartitionCount:1 ReplicationFactor:2 Configs: Topic: 6c999dfb-231c-4e8d-9c5b-19010c550a87-msgs Partition: 0 Leader: 0 Replicas: 0,1 Isr: 0,1 In this case the messages were produced with: (https://github.com/mumrah/kafka-python/) Hope this helps. > Null Message payload is shutting down broker > -------------------------------------------- > > Key: KAFKA-4686 > URL: https://issues.apache.org/jira/browse/KAFKA-4686 > Project: Kafka > Issue Type: Bug > Affects Versions: 0.10.1.1 > Environment: Amazon Linux AMI release 2016.03 kernel > 4.4.19-29.55.amzn1.x86_64 > Reporter: Rodrigo Queiroz Saramago > Fix For: 0.10.3.0 > > Attachments: KAFKA-4686-NullMessagePayloadError.tar.xz, > kafkaServer.out > > > Hello, I have a test environment with 3 brokers and 1 zookeeper nodes, in > which clients connect using two-way ssl authentication. I use kafka version > 0.10.1.1, the system works as expected for a while, but if the broker goes > down and then is restarted, something got corrupted and is not possible start > broker again, it always fails with the same error. What this error mean? What > can I do in this case? Is this the expected behavior? > [2017-01-23 07:03:28,927] ERROR There was an error in one of the threads > during logs loading: kafka.common.KafkaException: Message payload is null: > Message(magic = 0, attributes = 1, crc = 4122289508, key = null, payload = > null) (kafka.log.LogManager) > [2017-01-23 07:03:28,929] FATAL Fatal error during KafkaServer startup. > Prepare to shutdown (kafka.server.KafkaServer) > kafka.common.KafkaException: Message payload is null: Message(magic = 0, > attributes = 1, crc = 4122289508, key = null, payload = null) > at > kafka.message.ByteBufferMessageSet$$anon$1.<init>(ByteBufferMessageSet.scala:90) > at > kafka.message.ByteBufferMessageSet$.deepIterator(ByteBufferMessageSet.scala:85) > at kafka.message.MessageAndOffset.firstOffset(MessageAndOffset.scala:33) > at kafka.log.LogSegment.recover(LogSegment.scala:223) > at kafka.log.Log$$anonfun$loadSegments$4.apply(Log.scala:218) > at kafka.log.Log$$anonfun$loadSegments$4.apply(Log.scala:179) > at > scala.collection.TraversableLike$WithFilter$$anonfun$foreach$1.apply(TraversableLike.scala:733) > at > scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33) > at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:186) > at > scala.collection.TraversableLike$WithFilter.foreach(TraversableLike.scala:732) > at kafka.log.Log.loadSegments(Log.scala:179) > at kafka.log.Log.<init>(Log.scala:108) > at > kafka.log.LogManager$$anonfun$loadLogs$2$$anonfun$3$$anonfun$apply$10$$anonfun$apply$1.apply$mcV$sp(LogManager.scala:151) > at kafka.utils.CoreUtils$$anon$1.run(CoreUtils.scala:58) > at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) > at java.util.concurrent.FutureTask.run(FutureTask.java:266) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) > at java.lang.Thread.run(Thread.java:745) > [2017-01-23 07:03:28,946] INFO shutting down (kafka.server.KafkaServer) > [2017-01-23 07:03:28,949] INFO Terminate ZkClient event thread. > (org.I0Itec.zkclient.ZkEventThread) > [2017-01-23 07:03:28,954] INFO EventThread shut down for session: > 0x159bd458ae70008 (org.apache.zookeeper.ClientCnxn) > [2017-01-23 07:03:28,954] INFO Session: 0x159bd458ae70008 closed > (org.apache.zookeeper.ZooKeeper) > [2017-01-23 07:03:28,957] INFO shut down completed (kafka.server.KafkaServer) > [2017-01-23 07:03:28,959] FATAL Fatal error during KafkaServerStartable > startup. Prepare to shutdown (kafka.server.KafkaServerStartable) > kafka.common.KafkaException: Message payload is null: Message(magic = 0, > attributes = 1, crc = 4122289508, key = null, payload = null) > at > kafka.message.ByteBufferMessageSet$$anon$1.<init>(ByteBufferMessageSet.scala:90) > at > kafka.message.ByteBufferMessageSet$.deepIterator(ByteBufferMessageSet.scala:85) > at kafka.message.MessageAndOffset.firstOffset(MessageAndOffset.scala:33) > at kafka.log.LogSegment.recover(LogSegment.scala:223) > at kafka.log.Log$$anonfun$loadSegments$4.apply(Log.scala:218) > at kafka.log.Log$$anonfun$loadSegments$4.apply(Log.scala:179) > at > scala.collection.TraversableLike$WithFilter$$anonfun$foreach$1.apply(TraversableLike.scala:733) > at > scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33) > at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:186) > at > scala.collection.TraversableLike$WithFilter.foreach(TraversableLike.scala:732) > at kafka.log.Log.loadSegments(Log.scala:179) > at kafka.log.Log.<init>(Log.scala:108) > at > kafka.log.LogManager$$anonfun$loadLogs$2$$anonfun$3$$anonfun$apply$10$$anonfun$apply$1.apply$mcV$sp(LogManager.scala:151) > at kafka.utils.CoreUtils$$anon$1.run(CoreUtils.scala:58) > at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) > at java.util.concurrent.FutureTask.run(FutureTask.java:266) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) > at java.lang.Thread.run(Thread.java:745) > [2017-01-23 07:03:28,961] INFO shutting down (kafka.server.KafkaServer) -- This message was sent by Atlassian JIRA (v6.3.15#6346)