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From "Ekaterina Dimitrova (Jira)" <j...@apache.org>
Subject [jira] [Assigned] (CASSANDRA-12197) Integrate top threads command in nodetool
Date Tue, 12 Nov 2019 16:37:00 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-12197?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ekaterina Dimitrova reassigned CASSANDRA-12197:
-----------------------------------------------

    Assignee: Ekaterina Dimitrova

> Integrate top threads command in nodetool
> -----------------------------------------
>
>                 Key: CASSANDRA-12197
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12197
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Tool/nodetool
>            Reporter: J.B. Langston
>            Assignee: Ekaterina Dimitrova
>            Priority: Low
>
> SJK (https://github.com/aragozin/jvm-tools) has a command called ttop that displays the
top threads within the JVM, sorted either by CPU utilization or heap allocation rate. When
diagnosing garbage collection or high cpu utilization, this is very helpful information. 
It would be great if users can get this directly with nodetool without having to download
something else.  SJK is Apache 2.0 licensed so it might be possible leverage its code.



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