[jira] [Commented] (KAFKA-4629) Per topic MBeans leak

["lsj (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KAFKA-4629?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17070879#comment-17070879 ] 

lsj commented on KAFKA-4629:
----------------------------


I tested 0.10.2 and 1.0.1 . encountered the same problem.  broker cluster with three borkers,i delete all the topics,but MBeans could not be removed as expected.

> Per topic MBeans leak
> ---------------------
>
>                 Key: KAFKA-4629
>                 URL: https://issues.apache.org/jira/browse/KAFKA-4629
>             Project: Kafka
>          Issue Type: Bug
>          Components: metrics
>    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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