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Posted to commits@cassandra.apache.org by "Dave Brosius (JIRA)" <ji...@apache.org> on 2013/05/06 21:24:16 UTC

[jira] [Updated] (CASSANDRA-5541) Reduce Empty Map allocations in RowMutation (modifications)

     [ https://issues.apache.org/jira/browse/CASSANDRA-5541?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dave Brosius updated CASSANDRA-5541:
------------------------------------

    Attachment: 5541.txt
    
> Reduce Empty Map allocations in RowMutation (modifications)
> -----------------------------------------------------------
>
>                 Key: CASSANDRA-5541
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5541
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>    Affects Versions: 2.0
>            Reporter: Dave Brosius
>            Assignee: Dave Brosius
>            Priority: Trivial
>             Fix For: 2.0
>
>         Attachments: 5541.txt
>
>
> The constructor 
> public RowMutation(String table, ByteBuffer key)
> was generation tons of empty HashMaps that were unused, on the order of 160,000 of them in about a minute.
> delay creating the map until you need it.

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