Dongwook Kwon created YARN-3929:

             Summary: Uncleaning option for local app log files with 
log-aggregation feature
                 Key: YARN-3929
             Project: Hadoop YARN
          Issue Type: New Feature
          Components: log-aggregation
    Affects Versions: 2.6.0, 2.4.0
            Reporter: Dongwook Kwon
            Priority: Minor

Although it makes sense to delete local app log files once AppLogAggregator 
copied all files into remote location(HDFS), I have some use cases that need to 
leave local app log files after it's copied to HDFS. Mostly it's for own backup 
purpose. I would like to use log-aggregation feature of YARN and want to back 
up app log files too. Without this option, files has to copy from HDFS to local 

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