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