MR-279: Cannot run multiple NMs on a single node
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Key: MAPREDUCE-2652
URL: https://issues.apache.org/jira/browse/MAPREDUCE-2652
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: mrv2
Affects Versions: 0.23.0
Reporter: Robert Joseph Evans
Assignee: Robert Joseph Evans
Currently in MR-279 the Auxiliary services, like ShuffleHandler, have no way to
communicate information back to the applications. Because of this the Map
Reduce Application Master has hardcoded in a port of 8080 for shuffle. This
prevents the configuration "mapreduce.shuffle.port" form ever being set to
anything but 8080. The code should be updated to allow this information to be
returned to the application master. Also the data needs to be persisted to the
task log so that on restart the data is not lost.
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