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From "Benjamin Lerer (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (CASSANDRA-7767) Expose sizes of off-heap data structures via JMX and `nodetool info`
Date Fri, 21 Nov 2014 16:54:34 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-7767?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Benjamin Lerer reassigned CASSANDRA-7767:
-----------------------------------------

    Assignee: Benjamin Lerer

> Expose sizes of off-heap data structures via JMX and `nodetool info`
> --------------------------------------------------------------------
>
>                 Key: CASSANDRA-7767
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7767
>             Project: Cassandra
>          Issue Type: New Feature
>            Reporter: J.B. Langston
>            Assignee: Benjamin Lerer
>
> It would be very helpful for troubleshooting memory consumption to know the individual
sizes of off-heap data structures such as bloom filters, index summaries, compression metadata,
etc. Can we expose this over JMX? Also, since `nodetool info` already shows size of heap,
key cache, etc. it seems like a natural place to show this.



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