Akira Ajisaka created MAPREDUCE-6962:
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             Summary: Remove unused settings from log4j.properties
                 Key: MAPREDUCE-6962
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6962
             Project: Hadoop Map/Reduce
          Issue Type: Bug
            Reporter: Akira Ajisaka
            Priority: Minor


{noformat:title=hadoop-common-project/hadoop-common/src/main/conf/log4j.properties}
#Default values
hadoop.tasklog.taskid=null
hadoop.tasklog.iscleanup=false
hadoop.tasklog.noKeepSplits=4
hadoop.tasklog.totalLogFileSize=100
hadoop.tasklog.purgeLogSplits=true
hadoop.tasklog.logsRetainHours=12
{noformat}
hadoop.tasklog.noKeepSplits, purgeLogSplits, and logsRetainHours is not used 
anywhere and can be removed. These parameters were removed by HADOOP-1553 10 
years ago.



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