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https://issues.apache.org/jira/browse/MAPREDUCE-3230?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arun C Murthy resolved MAPREDUCE-3230.
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Resolution: Not A Problem
Verified MAPREDUCE-2693 fixed it.
> No information about Data Local maps from Job client CLI and in JobHistory
> ---------------------------------------------------------------------------
>
> Key: MAPREDUCE-3230
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3230
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: client, mrv2
> Affects Versions: 0.23.0
> Reporter: Karam Singh
> Priority: Blocker
> Fix For: 0.23.0
>
>
> Size of cluster is 350 NMs. I have topology.node.switch.mapping.impl set to
> enable rack-locality. Ran randomwriter/sort and scan jobs. Both jobs ran
> completed successfully.
> On Job client sort job says :
> {code}
> Launched map tasks=16800
> Launched reduce tasks=700
> Other local map tasks=10
> Rack-local map tasks=16790
> {code}
> JobHistory files also don't have information about Data Local Maps.
> There used to be information about data local maps before, till about a month
> back, like so:
> For sort with 349 NMs :
> {code}
> Launched map tasks=16754
> Launched reduce tasks=700
> Other local map tasks=48
> Data-local map tasks=16459
> Rack-local map tasks=248
> {code}
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