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From "Romain Hardouin (JIRA)" <>
Subject [jira] [Commented] (CASSANDRA-12758) Expose tasks queue length via JMX
Date Thu, 20 Oct 2016 09:39:59 GMT


Romain Hardouin commented on CASSANDRA-12758:

Thank you Michael Shuler, I added a patch for the cassandra-2.2 branch.

Should I modify now the commit message to add "patch by X; reviewed by Y for CASSANDRA-ZZZZZ"
(and also include a CHANGES.txt entry) or do I have to wait? 

> Expose tasks queue length via JMX
> ---------------------------------
>                 Key: CASSANDRA-12758
>                 URL:
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Romain Hardouin
>            Priority: Minor
>             Fix For: 2.2.x, 3.0.x, 3.x, 4.x
>         Attachments: 0001-Add-MBean-to-monitor-max-queued-tasks_2.1.patch, 0001-Add-MBean-to-monitor-max-queued-tasks_2.2.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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