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https://issues.apache.org/jira/browse/MAPREDUCE-4936?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arun C Murthy updated MAPREDUCE-4936:
-------------------------------------
Affects Version/s: (was: 3.0.0)
Status: Patch Available (was: Open)
> JobImpl uber checks for cpu are wrong
> -------------------------------------
>
> Key: MAPREDUCE-4936
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4936
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Affects Versions: 2.0.3-alpha
> Reporter: Daryn Sharp
> Assignee: Arun C Murthy
> Priority: Critical
> Attachments: MAPREDUCE-4936.patch
>
>
> The cpu checks for uberizing have two issues:
> # the defaults are hardcoded instead of using the conf defaults
> # the comparison against the sys cpu size is using {{<}} instead of {{<=}}
> {code}
> boolean smallCpu =
> (
> Math.max(
> conf.getInt(MRJobConfig.MAP_CPU_VCORES, 1),
> conf.getInt(MRJobConfig.REDUCE_CPU_VCORES, 1)) <
> sysCPUSizeForUberSlot
> );
> {code}
> Everything is defaulting to 1, so uber cpu checks are now disabled causing
> {{TestUberAM}} to fail.
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