The result returned by the wrong usage of the command "job -counter<job-id>
<group-name> <counter-name> "is not appropriate
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Key: MAPREDUCE-2612
URL: https://issues.apache.org/jira/browse/MAPREDUCE-2612
Project: Hadoop Map/Reduce
Issue Type: Improvement
Affects Versions: 0.23.0
Reporter: XieXianshan
Priority: Minor
Fix For: 0.23.0
The result returned by Map/Reduce command "job -counter<job-id> <group-name>
<counter-name> " is always zero ,when use this command with incorrect group
name or counter name.
It is very easy to be misunderstood if users just make a spelling mistake.
So,for more comprehensible information, more detailed results should be
displayed as the following:
[Could not find group FileSystemCounters_err] <--incorrect group name
or
[Could not find counter FILE_BYTES_READ_err in the group FileSystemCounters]
<--incorrect counter name
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