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https://issues.apache.org/jira/browse/HADOOP-4513?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sameer Paranjpye updated HADOOP-4513:
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Affects Version/s: (was: 0.19.1)
0.19.0
Fix Version/s: 0.19.1
> 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
> Fix For: 0.19.1
>
>
> 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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