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https://issues.apache.org/jira/browse/ZOOKEEPER-1321?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13200882#comment-13200882
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Camille Fournier commented on ZOOKEEPER-1321:
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This whitespace cleanup is creating a huge diff for a very little change. Are
we sure we want to do this for the benefit of removing extra whitespace at the
end of lines? I'd like to get the patch in but I'm not crazy about making it
look like a lot more has changed than actually did.
> Add number of client connections metric in JMX and srvr
> -------------------------------------------------------
>
> Key: ZOOKEEPER-1321
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1321
> Project: ZooKeeper
> Issue Type: Improvement
> Affects Versions: 3.3.4, 3.4.2
> Reporter: Neha Narkhede
> Assignee: Neha Narkhede
> Labels: patch
> Attachments: ZOOKEEPER-1321_3.4.patch, ZOOKEEPER-1321_trunk.patch,
> ZOOKEEPER-1321_trunk.patch, zk-1321-cleanup, zk-1321-trunk.patch,
> zk-1321.patch, zookeeper-1321-trunk-v2.patch
>
>
> The related conversation on the zookeeper user mailing list is here -
> http://apache.markmail.org/message/4jjcmooniowwugu2?q=+list:org.apache.hadoop.zookeeper-user
> It is useful to be able to monitor the number of disconnect operations on a
> client. This is generally indicative of a client going through large number
> of GC and hence disconnecting way too often from a zookeeper cluster.
> Today, this information is only indirectly exposed as part of the stat
> command which requires counting the results. That's alot of work for the
> server to do just to get connection count.
> For monitoring purposes, it will be useful to have this exposed through JMX
> and 4lw srvr.
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