[MAPREDUCE-3346] Rumen LoggedTaskAttempt getHostName call returns hostname as null

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 0.23.0
• Fix Version/s: 0.23.1
• Component/s: tools/rumen
• Target Version/s: 0.23.1
• Tags: rumen hostname
• Assignee: Amar Kamat
• Reporter: Karam Singh
• Created: 04/Nov/11 10:01
• Updated: 05/Mar/12 02:48
• Resolved: 08/Nov/11 04:49

Description

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.