Bibin A Chundatt created MAPREDUCE-6693:
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             Summary: Job history entry missing when JOB name is of 50 character
                 Key: MAPREDUCE-6693
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6693
             Project: Hadoop Map/Reduce
          Issue Type: Bug
            Reporter: Bibin A Chundatt
            Priority: Critical


Job entry history missing when JOB name is of 50 character

{noformat}
2016-05-10 06:51:00,674 DEBUG [Thread-73] 
org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler: Interrupting 
Event Handling thread
2016-05-10 06:51:00,674 DEBUG [Thread-73] 
org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler: Waiting for 
Event Handling thread to complete
2016-05-10 06:51:00,674 ERROR [eventHandlingThread] 
org.apache.hadoop.yarn.YarnUncaughtExceptionHandler: Thread 
Thread[eventHandlingThread,5,main] threw an Exception.
java.lang.ArrayIndexOutOfBoundsException: 50
        at 
org.apache.hadoop.mapreduce.v2.jobhistory.FileNameIndexUtils.trimURLEncodedString(FileNameIndexUtils.java:326)
        at 
org.apache.hadoop.mapreduce.v2.jobhistory.FileNameIndexUtils.getDoneFileName(FileNameIndexUtils.java:86)
        at 
org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler.processDoneFiles(JobHistoryEventHandler.java:1147)
        at 
org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler.handleEvent(JobHistoryEventHandler.java:635)
        at 
org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler$1.run(JobHistoryEventHandler.java:341)
        at java.lang.Thread.run(Thread.java:745)
2016-05-10 06:51:00,675 DEBUG [Thread-73] 
org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler: Shutting down 
timer for Job MetaInfo for job_1462840033869_0009 history file 
hdfs://hacluster:9820/staging-dir/dsperf/.staging/job_1462840033869_0009/job_1462840033869_0009_1.jhist
2016-05-10 06:51:00,675 DEBUG [Thread-73] 
org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler: Shutting down 
timer Job MetaInfo for job_1462840033869_0009 history file 
hdfs://hacluster:9820/staging-dir/dsperf/.staging/job_1462840033869_0009/job_1462840033869_0009_1.jhist
2016-05-10 06:51:00,676 DEBUG [Thread-73] 
org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler: Closing Writer
{noformat}

Looks like 50 character check is going wrong



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