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https://issues.apache.org/jira/browse/CASSANDRA-2252?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13018160#comment-13018160
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Stu Hood commented on CASSANDRA-2252:
-------------------------------------
This will need a rebase post-2006. In particular, we'll need to include the
bytes allocated by the allocator in the live size, and make sure the shared
buffers/slabs are excluded by JAMM.
> off-heap memtables
> ------------------
>
> Key: CASSANDRA-2252
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2252
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Jonathan Ellis
> Assignee: Jonathan Ellis
> Fix For: 0.8
>
> Attachments: 0001-add-MemtableAllocator.txt,
> 0002-add-off-heap-MemtableAllocator-support.txt, 2252-alternate-v2.tgz,
> merged-2252.tgz
>
> Original Estimate: 0.4h
> Remaining Estimate: 0.4h
>
> The memtable design practically actively fights Java's GC design. Todd
> Lipcon gave a good explanation over on HBASE-3455.
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