[jira] [Commented] (CASSANDRA-12758) Expose tasks queue length via JMX

["Romain Hardouin (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-12758?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15980947#comment-15980947 ] 

Romain Hardouin commented on CASSANDRA-12758:
---------------------------------------------

I removed 2.x patches - it was six months ago - and I updated patches to apply cleanly on 3.0 and trunk. 
I didn't put entry in trunk's CHANGES.txt because I don't know where the line is supposed to be added.

> Expose tasks queue length via JMX
> ---------------------------------
>
>                 Key: CASSANDRA-12758
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12758
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Romain Hardouin
>            Assignee: Michael Shuler
>            Priority: Minor
>             Fix For: 3.0.x, 3.11.x, 4.x
>
>         Attachments: 12758-3.0.patch, 12758-trunk.patch
>
>
> CASSANDRA-11363 introduced {{cassandra.max_queued_native_transport_requests}} to set the NTR queue length.
> Currently Cassandra lacks of a JMX Mbean which exposes this value which would allow to:
>  
>     1. Be sure this value has been set
>     2. Plot this value in a monitoring application to make correlations with other graphs when we make changes



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