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https://issues.apache.org/jira/browse/MAPREDUCE-922?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Allen Wittenauer resolved MAPREDUCE-922.
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Resolution: Won't Fix
Closing as won't fix.
> Automatic configuration of number of map and reduce slots based on available
> resources for dealing with heterogenous clusters
> -----------------------------------------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-922
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-922
> Project: Hadoop Map/Reduce
> Issue Type: Sub-task
> Components: tasktracker
> Affects Versions: 0.22.0
> Reporter: Arun C Murthy
>
> Currently the number of map and reduce slots have to be configured manually,
> which is reasonable for homogeneous clusters. However, as the clusters start
> to change over time it becomes rather painful to administer and configure. We
> should start thinking along the direction of auto-magically configuring the
> slots based on available resources on the node such as RAM, CPU, disk etc.
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