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https://issues.apache.org/jira/browse/CASSANDRA-9526?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14955219#comment-14955219
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Ariel Weisberg commented on CASSANDRA-9526:
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Created a dtest https://github.com/riptano/cassandra-dtest/pull/603
|[Code|https://github.com/apache/cassandra/compare/cassandra-2.2...aweisberg:CASSANDRA-9526?expand=1]|[utests|https://cassci.datastax.com/view/Dev/view/aweisberg/job/aweisberg-CASSANDRA-9526-testall/1/]|[dtests|http://cassci.datastax.com/view/Dev/view/aweisberg/job/aweisberg-CASSANDRA-9526-dtest/]|
> 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
> Assignee: Ron Kuris
> Fix For: 2.2.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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