Data Local maps information not coming Job client CLI or in JobHistory
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Key: MAPREDUCE-3230
URL: https://issues.apache.org/jira/browse/MAPREDUCE-3230
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: mrv2
Affects Versions: 0.23.0
Reporter: Karam Singh
Size of cluster is 350 NMs.
I have topology.node.switch.mapping.impl is set to enable rack-locality.
Ran randomwriter/sort and scan jobs.
Both jobs ran
Launched map tasks=16800
On Job client sort says -:
Launched map tasks=16800
Launched reduce tasks=700
Other local map tasks=10
Rack-local map tasks=16790
On Job client scan says -:
Launched map tasks=16800
Other local map tasks=50
Rack-local map tasks=16750
JobHistory files also does having information of Data Local Maps
There is information data local maps, last month, when I checked out code
branch-0.23
data local maps was coming
e.g.
For sort it was with 349 NMs-:
Launched map tasks=16754
Launched reduce tasks=700
Other local map tasks=48
Data-local map tasks=16459
Rack-local map tasks=248
For scan it was with 349 NMs -:
Launched map tasks=16752
Other local map tasks=27
Data-local map tasks=16532
Rack-local map tasks=193
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