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Posted to commits@cassandra.apache.org by "Ron Kuris (JIRA)" <ji...@apache.org> on 2015/09/16 23:29:46 UTC

[jira] [Commented] (CASSANDRA-9526) Provide a JMX hook to monitor phi values in the FailureDetector

    [ https://issues.apache.org/jira/browse/CASSANDRA-9526?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14791149#comment-14791149 ] 

Ron Kuris commented on CASSANDRA-9526:
--------------------------------------

[~iamaleksey] Is this because 2.0.x is no longer receiving updates? Is there anything I can do to get this into 2.2.x?

> Provide a JMX hook to monitor phi values in the FailureDetector
> ---------------------------------------------------------------
>
>                 Key: CASSANDRA-9526
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-9526
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Ron Kuris
>         Attachments: Monitor-Phi-JMX.patch, Phi-Log-Debug-When-Close.patch, Tiny-Race-Condition.patch
>
>
> phi_convict_threshold can be tuned, but there's currently no way to monitor the phi values to see if you're getting close.
> The attached patch adds the ability to get these values via JMX.



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