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https://issues.apache.org/jira/browse/ZOOKEEPER-3324?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17433152#comment-17433152
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Ishan Chattopadhyaya commented on ZOOKEEPER-3324:
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How to access these metrics via JMX? Can't seem to be able to find these in the 
metrics exposed there.

> Add read/write metrics for top level znodes
> -------------------------------------------
>
>                 Key: ZOOKEEPER-3324
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3324
>             Project: ZooKeeper
>          Issue Type: Sub-task
>          Components: metric system
>            Reporter: Jie Huang
>            Assignee: Jie Huang
>            Priority: Minor
>              Labels: pull-request-available
>             Fix For: 3.6.0
>
>          Time Spent: 1h 20m
>  Remaining Estimate: 0h
>
> These metrics provide bytes read from each branch under the root and bytes 
> written to each branch under the root. We use top level znodes not only to 
> manage applications that share an ensemble but also to organize data on a 
> dedicated ensemble. These metrics help us to do quota management, ACL 
> management, etc at the top znode level.



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