Rumen LoggedTaskAttempt getHostName call returns hostname as null
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Key: MAPREDUCE-3346
URL: https://issues.apache.org/jira/browse/MAPREDUCE-3346
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: tools/rumen
Affects Versions: 0.23.0
Reporter: Karam Singh
Priority: Blocker
After MAPREDUCE-3035 and MAPREDUCE-3317
Now MRV2 job history contains hostName and rackName.
when rumen trace builder is ran on jobhistory, its generated trace contains
hostname in form of
hostName : /raclname/hostname
But getHostName for LoggedTaskAttempt returns hostname as null
Seems that TraceBuilder is setting hostName properly but JobTraceReader is not
able read it.
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