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From "Hemanth Yamijala (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-4513) Capacity scheduler should initialize tasks asynchronously
Date Fri, 24 Oct 2008 05:53:44 GMT
Capacity scheduler should initialize tasks asynchronously

                 Key: HADOOP-4513
                 URL: https://issues.apache.org/jira/browse/HADOOP-4513
             Project: Hadoop Core
          Issue Type: Bug
          Components: contrib/capacity-sched
    Affects Versions: 0.19.0
            Reporter: Hemanth Yamijala
            Assignee: Sreekanth Ramakrishnan

Currently, the capacity scheduler initializes tasks on demand, as opposed to the eager initialization
technique used by the default scheduler. This is done in order to save JT memory footprint.
However, the initialization is done in the {{assignTasks}} API which is not a good idea as
task initialization could be a time consuming operation. This JIRA is to move out the initialization
outside the {{assignTasks}} API and do it asynchronously.

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