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https://issues.apache.org/jira/browse/MAPREDUCE-994?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12828928#action_12828928
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Meng Mao commented on MAPREDUCE-994:
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I agree, though currently the usage output is simply:
$ hadoop job -counter
Usage: JobClient [-counter <job-id> <group-name> <counter-name>]
I couldn't the example of
hadoop job -counter org.apache.hadoop.mapreduce.TaskCounter REDUCE_INPUT_RECORDS
to work. Is it working for others? Access to the various MapReduce counters
would be highly desirable.
> bin/hadoop job -counter help options do not give information on permissible
> values.
> -----------------------------------------------------------------------------------
>
> Key: MAPREDUCE-994
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-994
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Reporter: Iyappan Srinivasan
> Priority: Minor
>
> Right now, bin/hadoop job -counter gives this output
> bin/hadoop job -counter
> DEPRECATED: Use of this script to execute mapred command is deprecated.
> Instead use the mapred command for it.
> Usage: CLI [-counter <job-id> <group-name> <counter-name>]
> What are these group names and what are the counter-names is not explained.
> All permissible values of group-name> and <counter-name> should be specified.
> Group_name Ex:
> org.apache.hadoop.mapreduce.TaskCounter
> Counter name example:
> REDUCE_INPUT_RECORDS
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