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From "Joshua McKenzie (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-11541) correct the java documentation for SlabAllocator and NativeAllocator
Date Mon, 09 May 2016 00:36:12 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-11541?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Joshua McKenzie updated CASSANDRA-11541:
----------------------------------------
       Resolution: Fixed
    Fix Version/s:     (was: 2.2.x)
                   3.0.7
                   3.7
                   2.2.7
           Status: Resolved  (was: Ready to Commit)

[Committed|https://git-wip-us.apache.org/repos/asf?p=cassandra.git;a=commit;h=ac9844b99decbcda5ed279203884154011cda618]
to 2.2 and merged up. Fixed some trailing whitespace on there on commit.

Thanks!

> correct the java documentation for SlabAllocator and NativeAllocator
> --------------------------------------------------------------------
>
>                 Key: CASSANDRA-11541
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-11541
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: ZhaoYang
>            Assignee: ZhaoYang
>            Priority: Trivial
>              Labels: document, lhf
>             Fix For: 2.2.7, 3.7, 3.0.7
>
>         Attachments: CASSANDRA-11541-2.1.15.patch, CASSANDRA-11541-2.2.patch
>
>
> I heard a lot that Cassandra uses 2MB slab allocation strategy for memtable to improve
its memory efficiency. But in fact, it has been changed from 2MB to 1 MB. 
> And in NativeAllocator, it's logarithmically from 8kb to 1mb.
> large number of tables may not cause too much trouble in term of memtable.



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