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Posted to issues@tez.apache.org by "Siddharth Seth (JIRA)" <ji...@apache.org> on 2013/07/31 18:25:50 UTC

[jira] [Updated] (TEZ-325) Allow work units to be assigned to running tasks

     [ https://issues.apache.org/jira/browse/TEZ-325?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Siddharth Seth updated TEZ-325:
-------------------------------

    Issue Type: Sub-task  (was: Improvement)
        Parent: TEZ-328
    
> Allow work units to be assigned to running tasks
> ------------------------------------------------
>
>                 Key: TEZ-325
>                 URL: https://issues.apache.org/jira/browse/TEZ-325
>             Project: Apache Tez
>          Issue Type: Sub-task
>            Reporter: Siddharth Seth
>
> An extension of container reuse. Instead of re-initializing new data structures for each task run by a container - this is to allow a work unit to be given to the task so that it can make use of existing structures.
> As an example - reusing sort buffers when running map tasks, Hive may need to generate some vertex level information - which is the same across all tasks in a vertex.

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