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https://issues.apache.org/jira/browse/KAFKA-7082?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Ismael Juma resolved KAFKA-7082.
--------------------------------
Resolution: Fixed
Reviewer: Jun Rao
> Concurrent createTopics calls may throw NodeExistsException
> -----------------------------------------------------------
>
> Key: KAFKA-7082
> URL: https://issues.apache.org/jira/browse/KAFKA-7082
> Project: Kafka
> Issue Type: Bug
> Affects Versions: 1.1.0
> Reporter: Ismael Juma
> Assignee: Ismael Juma
> Priority: Critical
> Labels: regression
> Fix For: 2.0.1, 1.1.2
>
>
> This exception is unexpected causing an `UnknownServerException` to be thrown
> back to the client. Example below:
> {code}
> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
> NodeExists for /config/topics/connect-configs
> at
> org.apache.zookeeper.KeeperException.create(KeeperException.java:119)
> at
> org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
> at kafka.zookeeper.AsyncResponse.maybeThrow(ZooKeeperClient.scala:472)
> at kafka.zk.KafkaZkClient.createRecursive(KafkaZkClient.scala:1400)
> at kafka.zk.KafkaZkClient.create$1(KafkaZkClient.scala:262)
> at
> kafka.zk.KafkaZkClient.setOrCreateEntityConfigs(KafkaZkClient.scala:269)
> at
> kafka.zk.AdminZkClient.createOrUpdateTopicPartitionAssignmentPathInZK(AdminZkClient.scala:99)
> at kafka.server.AdminManager$$anonfun$2.apply(AdminManager.scala:126)
> at kafka.server.AdminManager$$anonfun$2.apply(AdminManager.scala:81)
> at
> scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
> at
> scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
> at scala.collection.Iterator$class.foreach(Iterator.scala:891)
> at scala.collection.AbstractIterator.foreach(Iterator.scala:1334)
> at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
> at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
> at
> scala.collection.TraversableLike$class.map(TraversableLike.scala:234)
> {code}
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