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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-2252) arena allocation for memtables
Date Mon, 29 Aug 2011 02:05:38 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-2252?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13092595#comment-13092595
] 

Jonathan Ellis commented on CASSANDRA-2252:
-------------------------------------------

We only have a reference to the SA if it's a memtable-related operation, otherwise we have
to use HA. Is that what you're referring to?

> arena allocation for 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: 1.0
>
>         Attachments: 0001-add-MemtableAllocator.txt, 0002-add-off-heap-MemtableAllocator-support.txt,
2252-v3.txt, 2252-v4.txt, merged-2252.tgz
>
>
> The memtable design practically actively fights Java's GC design.  Todd Lipcon gave a
good explanation over on HBASE-3455.

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