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Posted to commits@cassandra.apache.org by "J.B. Langston (JIRA)" <ji...@apache.org> on 2014/08/14 16:30:12 UTC

[jira] [Created] (CASSANDRA-7767) Expose sizes of off-heap data structures via JMX and `nodetool info`

J.B. Langston created CASSANDRA-7767:
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             Summary: 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


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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