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https://issues.apache.org/jira/browse/CASSANDRA-4865?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vijay updated CASSANDRA-4865:
-----------------------------

    Attachment: 0001-CASSANDRA-4865-v3.patch

Done, Thanks!
                
> Off-heap bloom filters
> ----------------------
>
>                 Key: CASSANDRA-4865
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4865
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Jonathan Ellis
>            Assignee: Vijay
>             Fix For: 1.2.1
>
>         Attachments: 0001-CASSANDRA-4865.patch, 0001-CASSANDRA-4865-v2.patch, 
> 0001-CASSANDRA-4865-v3.patch
>
>
> Bloom filters are the major user of heap as dataset grows.  It's probably 
> worth it to move these off heap.  No extra refcounting needs to be done since 
> we already refcount SSTableReader.

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