[jira] [Updated] (ZOOKEEPER-1321) Add number of client connections metric in JMX and srvr

["Neha Narkhede (Updated) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ZOOKEEPER-1321?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Neha Narkhede updated ZOOKEEPER-1321:
-------------------------------------

    Attachment: ZOOKEEPER-1321_trunk.patch

This patch exposes the number of active client connections to a zookeeper server through JMX as well as srvr, stat and mntr.
                
> 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
>              Labels: patch
>         Attachments: ZOOKEEPER-1321_trunk.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.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira