Robert Kanter created MAPREDUCE-6480:
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             Summary: archive-logs tool may miss applications
                 Key: MAPREDUCE-6480
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6480
             Project: Hadoop Map/Reduce
          Issue Type: Bug
    Affects Versions: 2.8.0
            Reporter: Robert Kanter
            Assignee: Robert Kanter


MAPREDUCE-6415 added a tool to archive aggregated logs into HAR files.  It 
seeds the initial list of applications to process based on apps which have 
finished aggregated, according to the RM.  However, the RM doesn't remember 
completed applications forever (e.g. failover), so it's possible for the tool 
to miss applications if they're no longer in the RM.  

Instead, we should do the following:
# Seed the initial list of apps based on the aggregated log directories
# Make the RM not consider applications "complete" until their log aggregation 
has reached a terminal state (i.e. DISABLED, SUCCEEDED, FAILED, TIME_OUT).  

#2 will allow #1 to assume that any apps not found in the RM are done 
aggregating.  #2 on it's own should cover most cases though



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