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https://issues.apache.org/jira/browse/KAFKA-4629?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15823029#comment-15823029
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huxi commented on KAFKA-4629:
-----------------------------

I tried in my kafka0.10.0.1 single-broker test environment with no luck to 
reproduce the issue. The partition number and replication factor were both set 
to 1 which I am sure if the setting matters.

As for the WARN logs, seems you are requesting a deletion for a non-exist 
topic. Could you confirm that the topic exists before invoking 
AdminUtils.deleteTopic?

> Per topic MBeans leak
> ---------------------
>
>                 Key: KAFKA-4629
>                 URL: https://issues.apache.org/jira/browse/KAFKA-4629
>             Project: Kafka
>          Issue Type: Bug
>    Affects Versions: 0.10.0.1
>            Reporter: Alberto Forti
>            Priority: Minor
>
> Hi,
> In our application we create and delete topics dynamically. Most of the times 
> when a topic is deleted the related MBeans are not deleted. Example of MBean: 
> kafka.server:type=BrokerTopicMetrics,name=TotalProduceRequestsPerSec,topic=dw_06b5f828-e452-4e22-89c9-67849a65603d
> Also, deleting a topic often produces (what I think is) noise in the logs at 
> WARN level. One example is:
> WARN  PartitionStateMachine$DeleteTopicsListener:83 - [DeleteTopicsListener 
> on 1]: Ignoring request to delete non-existing topics 
> dw_fe8ff14b-aa9b-4f24-9bc1-6fbce15d20d2
> Easy reproducible with a basic Kafka cluster with two brokers, just create 
> and delete topics few times. Sometimes the MBeans for the topic are deleted 
> and sometimes are not.
> I'm creating and deleting topics using the AdminUtils class in the Java API:
> AdminUtils.deleteTopic(zkUtils, topicName);
> AdminUtils.createTopic(zkUtils, topicName, partitions, replicationFactor, 
> topicConfiguration, kafka.admin.RackAwareMode.Enforced$.MODULE$);
> Kafka version: 0.10.0.1 (haven't tried other versions)
> Thanks,
> Alberto



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