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Posted to commits@cassandra.apache.org by "Jonathan Ellis (JIRA)" <ji...@apache.org> on 2013/11/27 03:36:35 UTC

[jira] [Updated] (CASSANDRA-6410) gossip memory usage improvement

     [ https://issues.apache.org/jira/browse/CASSANDRA-6410?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jonathan Ellis updated CASSANDRA-6410:
--------------------------------------

    Attachment: gossip-intern.txt

Patch to intern VersionedValue keys.  (Making them enum would be even better but then we'd lose the ability to "cheat" and extend Gossip w/ arbitrary payloads.)

> gossip memory usage improvement
> -------------------------------
>
>                 Key: CASSANDRA-6410
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6410
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Quentin Conner
>         Attachments: gossip-intern.txt
>
>
> It looks to me that any given node will need ~2 MB of Java VM heap for each other node in the ring.  This was observed with num_tokens=512 but still seems excessive.



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