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https://issues.apache.org/jira/browse/KAFKA-3219?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Manikumar Reddy resolved KAFKA-3219.
------------------------------------
Resolution: Fixed
> Long topic names mess up broker topic state
> -------------------------------------------
>
> Key: KAFKA-3219
> URL: https://issues.apache.org/jira/browse/KAFKA-3219
> Project: Kafka
> Issue Type: Bug
> Affects Versions: 0.9.0.0
> Reporter: Magnus Edenhill
> Assignee: Vahid Hashemian
> Fix For: 0.10.0.0
>
>
> Seems like the broker doesn't like topic names of 254 chars or more when
> creating using kafka-topics.sh --create.
> The problem does not seem to arise when topic is created through automatic
> topic creation.
> How to reproduce:
> {code}
> TOPIC=$(printf 'd%.0s' {1..254} ) ; bin/kafka-topics.sh --zookeeper 0
> --create --topic $TOPIC --partitions 1 --replication-factor 1
> {code}
> {code}
> [2016-02-06 22:00:01,943] INFO [ReplicaFetcherManager on broker 3] Removed
> fetcher for partitions
> [dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd,0]
> (kafka.server.ReplicaFetcherManager)
> [2016-02-06 22:00:01,944] ERROR [KafkaApi-3] Error when handling request
> {controller_id=3,controller_epoch=12,partition_states=[{topic=dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd,partition=0,controller_epoch=12,leader=3,leader_epoch=0,isr=[3],zk_version=0,replicas=[3]}],live_leaders=[{id=3,host=eden,port=9093}]}
> (kafka.server.KafkaApis)
> java.lang.NullPointerException
> at
> scala.collection.mutable.ArrayOps$ofRef$.length$extension(ArrayOps.scala:114)
> at scala.collection.mutable.ArrayOps$ofRef.length(ArrayOps.scala:114)
> at
> scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:32)
> at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:108)
> at
> scala.collection.TraversableLike$WithFilter.foreach(TraversableLike.scala:771)
> at kafka.log.Log.loadSegments(Log.scala:138)
> at kafka.log.Log.<init>(Log.scala:92)
> at kafka.log.LogManager.createLog(LogManager.scala:357)
> at kafka.cluster.Partition.getOrCreateReplica(Partition.scala:96)
> at
> kafka.cluster.Partition$$anonfun$4$$anonfun$apply$2.apply(Partition.scala:176)
> at
> kafka.cluster.Partition$$anonfun$4$$anonfun$apply$2.apply(Partition.scala:176)
> at scala.collection.mutable.HashSet.foreach(HashSet.scala:79)
> at kafka.cluster.Partition$$anonfun$4.apply(Partition.scala:176)
> at kafka.cluster.Partition$$anonfun$4.apply(Partition.scala:170)
> at kafka.utils.CoreUtils$.inLock(CoreUtils.scala:259)
> at kafka.utils.CoreUtils$.inWriteLock(CoreUtils.scala:267)
> at kafka.cluster.Partition.makeLeader(Partition.scala:170)
> at
> kafka.server.ReplicaManager$$anonfun$makeLeaders$4.apply(ReplicaManager.scala:696)
> at
> kafka.server.ReplicaManager$$anonfun$makeLeaders$4.apply(ReplicaManager.scala:695)
> at
> scala.collection.mutable.HashMap$$anonfun$foreach$1.apply(HashMap.scala:98)
> at
> scala.collection.mutable.HashMap$$anonfun$foreach$1.apply(HashMap.scala:98)
> at
> scala.collection.mutable.HashTable$class.foreachEntry(HashTable.scala:226)
> at scala.collection.mutable.HashMap.foreachEntry(HashMap.scala:39)
> at scala.collection.mutable.HashMap.foreach(HashMap.scala:98)
> at kafka.server.ReplicaManager.makeLeaders(ReplicaManager.scala:695)
> at
> kafka.server.ReplicaManager.becomeLeaderOrFollower(ReplicaManager.scala:641)
> at
> kafka.server.KafkaApis.handleLeaderAndIsrRequest(KafkaApis.scala:142)
> at kafka.server.KafkaApis.handle(KafkaApis.scala:79)
> at kafka.server.KafkaRequestHandler.run(KafkaRequestHandler.scala:60)
> at java.lang.Thread.run(Thread.java:745)
> {code}
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