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Posted to dev@kafka.apache.org by "Jun Rao (JIRA)" <ji...@apache.org> on 2016/04/22 20:30:13 UTC

[jira] [Commented] (KAFKA-3128) Add metrics for ZooKeeper events

    [ https://issues.apache.org/jira/browse/KAFKA-3128?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15254407#comment-15254407 ] 

Jun Rao commented on KAFKA-3128:
--------------------------------

ZKClient probably doesn't expose connection loss events. So, in 0.10.0, it would be useful if we can at least add the metric for session expiration.

> Add metrics for ZooKeeper events
> --------------------------------
>
>                 Key: KAFKA-3128
>                 URL: https://issues.apache.org/jira/browse/KAFKA-3128
>             Project: Kafka
>          Issue Type: Improvement
>          Components: core, zkclient
>            Reporter: Flavio Junqueira
>            Assignee: Ismael Juma
>             Fix For: 0.10.0.0
>
>
> It would be useful to report via Kafka metrics the number of ZK event notifications, such as connection loss events, session expiration events, etc., as a way of spotting potential issues with the communication with the ZK ensemble.



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