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https://issues.apache.org/jira/browse/MAPREDUCE-5568?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jian He updated MAPREDUCE-5568:
-------------------------------
Summary: JHS returns invalid string for reducer completion percentage if AM
restarts with 0 reducer. (was: JHS return invalid string for reducer
completion percentage if AM restarts with 0 reducer.)
> JHS returns invalid string for reducer completion percentage if AM restarts
> with 0 reducer.
> -------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-5568
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5568
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Reporter: Jian He
>
> JobCLient shows like:
> {code}
> 13/10/05 16:26:09 INFO mapreduce.Job: map 100% reduce NaN%
> 13/10/05 16:26:09 INFO mapreduce.Job: Job job_1381015536254_0001 completed
> successfully
> 13/10/05 16:26:09 INFO mapreduce.Job: Counters: 26
> File System Counters
> FILE: Number of bytes read=0
> FILE: Number of bytes written=76741
> FILE: Number of read operations=0
> FILE: Number of large read operations=0
> FILE: Number of write operations=0
> HDFS: Number of bytes read=48
> HDFS: Number of bytes written=0
> HDFS: Number of read operations=1
> HDFS: Number of large read operations=0
> HDFS: Number of write operations=0
> {code}
> With mapped job -status command, it shows:
> {code}
> Uber job : false
> Number of maps: 1
> Number of reduces: 0
> map() completion: 1.0
> reduce() completion: NaN
> Job state: SUCCEEDED
> retired: false
> reason for failure:
> {code}
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