[MAPREDUCE-5763] Warn message about httpshuffle in NM logs

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Target Version/s: 2.8.0
• Hadoop Flags: Reviewed
• Assignee: Akira Ajisaka
• Reporter: Sandy Ryza
• Created: 23/Feb/14 04:21
• Updated: 12/May/16 18:22
• Resolved: 09/Nov/15 06:34

Description

2014-02-20 12:08:45,141 WARN org.apache.hadoop.yarn.server.nodemanager.containermanager.AuxServices: The Auxilurary Service named 'mapreduce_shuffle' in the configuration is for class class org.apache.hadoop.mapred.ShuffleHandler which has a name of 'httpshuffle'. Because these are not the same tools trying to send ServiceData and read Service Meta Data may have issues unless the refer to the name in the config.
2014-02-20 12:08:45,142 INFO org.apache.hadoop.yarn.server.nodemanager.containermanager.AuxServices: Adding auxiliary service httpshuffle, "mapreduce_shuffle"

I'm seeing this in my NodeManager logs, even though things work fine. A WARN is being caused by some sort of mismatch between the name of the service (in terms of org.apache.hadoop.service.Service.getName()) and the name of the auxiliary service.