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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-6689) Partially Off Heap Memtables
Date Tue, 25 Mar 2014 04:58:11 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-6689?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13946168#comment-13946168
] 

Jonathan Ellis commented on CASSANDRA-6689:
-------------------------------------------

bq. it would be better if we can detect (e.g. FileUtils.isCleanerAvailable()) that on startup
and just fail over to the heap allocation

That's along the lines of what I'd expect as a user.

> Partially Off Heap Memtables
> ----------------------------
>
>                 Key: CASSANDRA-6689
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6689
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core
>            Reporter: Benedict
>            Assignee: Benedict
>              Labels: performance
>             Fix For: 2.1 beta2
>
>         Attachments: CASSANDRA-6689-final-changes.patch, CASSANDRA-6689-small-changes.patch
>
>
> Move the contents of ByteBuffers off-heap for records written to a memtable.
> (See comments for details)



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