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Posted to commits@cassandra.apache.org by "Jonathan Ellis (JIRA)" <ji...@apache.org> on 2015/08/24 18:10:47 UTC

[jira] [Updated] (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:all-tabpanel ]

Jonathan Ellis updated CASSANDRA-9526:
--------------------------------------
    Reviewer: Ariel Weisberg  (was: Brandon Williams)

> 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
>             Fix For: 2.0.x
>
>         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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