[MAPREDUCE-7072] mapred job -history prints duplicate counter in human output

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0
• Fix Version/s: 2.10.0, 3.2.0
• Component/s: client
• Hadoop Flags: Reviewed
• Assignee: Wilfred Spiegelenburg
• Reporter: Wilfred Spiegelenburg
• Created: 04/Apr/18 13:42
• Updated: 26/Feb/20 05:51
• Resolved: 27/Apr/18 16:58

Description

'mapred job -history' command prints duplicate entries for counters only for the human output format. It does not do this for the JSON format.

mapred job -history /user/history/somefile.jhist -format human

....
|Job Counters |Total megabyte-seconds taken by all map tasks|0 |0 |268,288,000
...
|Job Counters |Total megabyte-seconds taken by all map tasks|0 |0 |268,288,000
....