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Posted to common-dev@hadoop.apache.org by "Amar Kamat (JIRA)" <ji...@apache.org> on 2008/12/01 07:22:44 UTC

[jira] Updated: (HADOOP-4623) Running tasks are not maintained by JobInProgress if speculation is off

     [ https://issues.apache.org/jira/browse/HADOOP-4623?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Amar Kamat updated HADOOP-4623:
-------------------------------

    Status: Open  (was: Patch Available)

> Running tasks are not maintained by JobInProgress if speculation is off
> -----------------------------------------------------------------------
>
>                 Key: HADOOP-4623
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4623
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>            Reporter: Amar Kamat
>            Assignee: Amar Kamat
>         Attachments: HADOOP-4623-v1.1.patch, HADOOP-4623-v1.2.patch, HADOOP-4623-v1.3.patch
>
>
> {{JobInProgress}} doesnt maintain any structure for running tasks if speculation is turned _off_.  {{getRunningMapCache()}} in {{JobInProgress}} exposes the running map cache. This api returns an empty {{Map}} if speculation turned off. 
> _Usage_ :
> {{CapicityScheduler}} requires a list of running tasks for both speculated and non-speculated jobs. See HADOOP-4558 to see how this issue affects {{CapacityScheduler}}.

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