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From "Vladimir Ozerov (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (IGNITE-4273) Hadoop: implement heap-based data structures.
Date Mon, 05 Dec 2016 14:01:58 GMT

     [ https://issues.apache.org/jira/browse/IGNITE-4273?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vladimir Ozerov updated IGNITE-4273:
------------------------------------
    Labels: performance  (was: )

> Hadoop: implement heap-based data structures.
> ---------------------------------------------
>
>                 Key: IGNITE-4273
>                 URL: https://issues.apache.org/jira/browse/IGNITE-4273
>             Project: Ignite
>          Issue Type: Sub-task
>          Components: hadoop
>    Affects Versions: 1.8
>            Reporter: Vladimir Ozerov
>            Assignee: Vladimir Ozerov
>              Labels: performance
>             Fix For: 2.0
>
>
> We store output offheap what causes a lot of offheap <-> heap transitions. Also
it doesn't allow is to use raw comparator. 
> Let's add new data structures which utilize heap arrays.



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