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https://issues.apache.org/jira/browse/KAFKA-16412?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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mutu updated KAFKA-16412:
-------------------------
Description:
A client sends topic creation request to broker.
Another client sends the same topic creation request to broker.
The former request does not finish. However, the second client get
TopicExistsException.
The root cause may be that topic is registered in zookeeper, but the data is
not persisted and topic is not transfer to the paritition. At this time,
another client sends the same topic creation request that check the status of
zookeeper. After finding the znode of topic, the creation failed.
System logs are attached.
Are there any comments to figure out this issues？ I will very appreciate them.
was:
A client sends topic creation request to broker.
Another client sends the same topic creation request to broker.
The former request does not finish. However, the second client get
TopicExistsException.
The root cause may be that topic is registered in zookeeper, but the data is
not persisted and topic is not transfer to the paritition. At this time,
another client sends the same topic creation request that check the status of
zookeeper. After finding the znode of topic, the creation failed.
> Uncreated topics is considered as created topics
> ------------------------------------------------
>
> Key: KAFKA-16412
> URL: https://issues.apache.org/jira/browse/KAFKA-16412
> Project: Kafka
> Issue Type: Bug
> Affects Versions: 2.8.2
> Reporter: mutu
> Priority: Major
> Attachments: AnotherClientOutput.txt, client1-3.6.png,
> client2-3.6.png, kafkaServer1.out, kafkaServer2.out, kafkaServer3.out,
> system1-3.6.log, system2-3.6.log, system3-3.6.log
>
>
> A client sends topic creation request to broker.
> Another client sends the same topic creation request to broker.
> The former request does not finish. However, the second client get
> TopicExistsException.
> The root cause may be that topic is registered in zookeeper, but the data is
> not persisted and topic is not transfer to the paritition. At this time,
> another client sends the same topic creation request that check the status of
> zookeeper. After finding the znode of topic, the creation failed.
> System logs are attached.
> Are there any comments to figure out this issues？ I will very appreciate them.
>
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