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https://issues.apache.org/jira/browse/KAFKA-4231?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15532791#comment-15532791
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Ismael Juma commented on KAFKA-4231:
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I'm not aware of any reason why 0.10.0.1 should affect what's stored in ZK.
> ZK metadata went inconsistent when migrating 0.10.0.0 -> 0.10.0.1
> -----------------------------------------------------------------
>
> Key: KAFKA-4231
> URL: https://issues.apache.org/jira/browse/KAFKA-4231
> Project: Kafka
> Issue Type: Bug
> Affects Versions: 0.10.0.1
> Environment: 3-node cluster on AWS, 700+ topics, created and dropped
> on regular basis, we use Java Kafka client 0.9.0.1 and ZKUtils 0.9.0.1 to
> create/drop topics automatically
> Reporter: Sergey Alaev
>
> 1. we updated our Kafka cluster 0.10.0.0 -> 0.10.0.1 6 days ago
> 2. yesterday, we got huge amount of server logs looking like:
> [2016-09-29 12:33:27,055] ERROR [ReplicaFetcherThread-0-1], Error for
> partition
> [test-customer-recipient-4115239346516610_test-recipient-4115239346516610,0]
> to broker 1:org.apache.kafka.common.errors
> .UnknownTopicOrPartitionException: This server does not host this
> topic-partition. (kafka.server.ReplicaFetcherThread)
> 3. Today I've restarted all three nodes and they failed to start throwing
> exception featured below.
> Investigation showed that ZK:
> /config/topics contained 729 entries
> /admin/delete_topics contained 484 entries, all of them present in
> /config/topics
> /brokers/topics were missing 6 entries present in /config/topics! This was
> the cause of startup failure
> Removing those 6 entries from /config/topics fixed this issue.
> I'm sure that we didn't change ZK data manually, the only possible culpits
> are kafka-server 0.10.0.1 and ZKUtils 0.9.0.1 (used only to delete topics)
> [2016-09-29 12:52:11,082] ERROR Error while electing or becoming leader on
> broker 2 (kafka.server.ZookeeperLeaderElector)
> kafka.common.KafkaException: Can't parse json string: null
> at kafka.utils.Json$.liftedTree1$1(Json.scala:40)
> at kafka.utils.Json$.parseFull(Json.scala:36)
> at
> kafka.utils.ZkUtils$$anonfun$getReplicaAssignmentForTopics$1.apply(ZkUtils.scala:610)
> at
> kafka.utils.ZkUtils$$anonfun$getReplicaAssignmentForTopics$1.apply(ZkUtils.scala:606)
> at
> scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
> at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:48)
> at
> kafka.utils.ZkUtils.getReplicaAssignmentForTopics(ZkUtils.scala:606)
> at
> kafka.controller.KafkaController.initializeControllerContext(KafkaController.scala:744)
> at
> kafka.controller.KafkaController.onControllerFailover(KafkaController.scala:333)
> at
> kafka.controller.KafkaController$$anonfun$1.apply$mcV$sp(KafkaController.scala:166)
> at
> kafka.server.ZookeeperLeaderElector.elect(ZookeeperLeaderElector.scala:84)
> at
> kafka.server.ZookeeperLeaderElector$LeaderChangeListener$$anonfun$handleDataDeleted$1.apply$mcZ$sp(ZookeeperLeaderElector.scala:146)
> at
> kafka.server.ZookeeperLeaderElector$LeaderChangeListener$$anonfun$handleDataDeleted$1.apply(ZookeeperLeaderElector.scala:141)
> at
> kafka.server.ZookeeperLeaderElector$LeaderChangeListener$$anonfun$handleDataDeleted$1.apply(ZookeeperLeaderElector.scala:141)
> at kafka.utils.CoreUtils$.inLock(CoreUtils.scala:231)
> at
> kafka.server.ZookeeperLeaderElector$LeaderChangeListener.handleDataDeleted(ZookeeperLeaderElector.scala:141)
> at org.I0Itec.zkclient.ZkClient$9.run(ZkClient.java:824)
> at org.I0Itec.zkclient.ZkEventThread.run(ZkEventThread.java:71)
> Caused by: java.lang.NullPointerException
> Server configuration:
> [2016-09-29 12:40:58,190] INFO KafkaConfig values:
> advertised.host.name = null
> metric.reporters = []
> quota.producer.default = 9223372036854775807
> offsets.topic.num.partitions = 50
> log.flush.interval.messages = 9223372036854775807
> auto.create.topics.enable = true
> controller.socket.timeout.ms = 30000
> log.flush.interval.ms = null
> principal.builder.class = class
> org.apache.kafka.common.security.auth.DefaultPrincipalBuilder
> replica.socket.receive.buffer.bytes = 65536
> min.insync.replicas = 2
> replica.fetch.wait.max.ms = 500
> num.recovery.threads.per.data.dir = 1
> ssl.keystore.type = JKS
> sasl.mechanism.inter.broker.protocol = GSSAPI
> default.replication.factor = 3
> ssl.truststore.password = [hidden]
> log.preallocate = false
> sasl.kerberos.principal.to.local.rules = [DEFAULT]
> fetch.purgatory.purge.interval.requests = 1000
> ssl.endpoint.identification.algorithm = null
> replica.socket.timeout.ms = 30000
> message.max.bytes = 1000012
> num.io.threads = 10
> offsets.commit.required.acks = -1
> log.flush.offset.checkpoint.interval.ms = 60000
> delete.topic.enable = true
> quota.window.size.seconds = 1
> ssl.truststore.type = JKS
> offsets.commit.timeout.ms = 5000
> quota.window.num = 11
> zookeeper.connect =
> 10.148.27.151:2181,10.148.27.152:2181,10.148.27.153:2181
> authorizer.class.name =
> num.replica.fetchers = 1
> log.retention.ms = null
> log.roll.jitter.hours = 0
> log.cleaner.enable = true
> offsets.load.buffer.size = 5242880
> log.cleaner.delete.retention.ms = 86400000
> ssl.client.auth = none
> controlled.shutdown.max.retries = 3
> queued.max.requests = 500
> offsets.topic.replication.factor = 3
> log.cleaner.threads = 1
> sasl.kerberos.service.name = null
> sasl.kerberos.ticket.renew.jitter = 0.05
> socket.request.max.bytes = 104857600
> ssl.trustmanager.algorithm = PKIX
> zookeeper.session.timeout.ms = 6000
> log.retention.bytes = -1
> log.message.timestamp.type = CreateTime
> sasl.kerberos.min.time.before.relogin = 60000
> zookeeper.set.acl = false
> connections.max.idle.ms = 600000
> offsets.retention.minutes = 1440
> replica.fetch.backoff.ms = 1000
> inter.broker.protocol.version = 0.10.0-IV1
> log.retention.hours = 24
> num.partitions = 1
> broker.id.generation.enable = true
> listeners = PLAINTEXT://:9092,SSL://:9093
> ssl.provider = null
> ssl.enabled.protocols = [TLSv1.2, TLSv1.1, TLSv1]
> log.roll.ms = null
> log.flush.scheduler.interval.ms = 9223372036854775807
> ssl.cipher.suites = null
> log.index.size.max.bytes = 10485760
> ssl.keymanager.algorithm = SunX509
> security.inter.broker.protocol = PLAINTEXT
> replica.fetch.max.bytes = 1048576
> advertised.port = null
> log.cleaner.dedupe.buffer.size = 134217728
> replica.high.watermark.checkpoint.interval.ms = 5000
> log.cleaner.io.buffer.size = 524288
> sasl.kerberos.ticket.renew.window.factor = 0.8
> zookeeper.connection.timeout.ms = 60000
> controlled.shutdown.retry.backoff.ms = 5000
> log.roll.hours = 168
> log.cleanup.policy = delete
> host.name =
> log.roll.jitter.ms = null
> max.connections.per.ip = 2147483647
> offsets.topic.segment.bytes = 104857600
> background.threads = 10
> quota.consumer.default = 9223372036854775807
> request.timeout.ms = 30000
> log.message.format.version = 0.10.0-IV1
> log.index.interval.bytes = 4096
> log.dir = /tmp/kafka-logs
> log.segment.bytes = 1073741824
> log.cleaner.backoff.ms = 15000
> offset.metadata.max.bytes = 4096
> ssl.truststore.location = /ssl/server.truststore.jks
> group.max.session.timeout.ms = 300000
> ssl.keystore.password = [hidden]
> zookeeper.sync.time.ms = 2000
> port = 9092
> log.retention.minutes = null
> log.segment.delete.delay.ms = 60000
> log.dirs = /data
> controlled.shutdown.enable = true
> compression.type = producer
> max.connections.per.ip.overrides =
> log.message.timestamp.difference.max.ms = 9223372036854775807
> sasl.kerberos.kinit.cmd = /usr/bin/kinit
> log.cleaner.io.max.bytes.per.second = 1.7976931348623157E308
> auto.leader.rebalance.enable = true
> leader.imbalance.check.interval.seconds = 300
> log.cleaner.min.cleanable.ratio = 0.5
> replica.lag.time.max.ms = 10000
> num.network.threads = 5
> ssl.key.password = [hidden]
> reserved.broker.max.id = 1000
> metrics.num.samples = 2
> socket.send.buffer.bytes = 102400
> ssl.protocol = TLS
> socket.receive.buffer.bytes = 102400
> ssl.keystore.location = /ssl/server.keystore.jks
> replica.fetch.min.bytes = 1
> broker.rack = null
> unclean.leader.election.enable = true
> sasl.enabled.mechanisms = [GSSAPI]
> group.min.session.timeout.ms = 6000
> log.cleaner.io.buffer.load.factor = 0.9
> offsets.retention.check.interval.ms = 600000
> producer.purgatory.purge.interval.requests = 1000
> metrics.sample.window.ms = 30000
> broker.id = 3
> offsets.topic.compression.codec = 0
> log.retention.check.interval.ms = 300000
> advertised.listeners = PLAINTEXT://:9092,SSL://:9093
> leader.imbalance.per.broker.percentage = 10
> (kafka.server.KafkaConfig)
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