[MAPREDUCE-3920] Revise yarn default port number selection

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.23.1
• Fix Version/s: 0.23.2
• Component/s: nodemanager, resourcemanager
• Target Version/s: 0.23.2
• Release Note: port number changes for resourcemanager and nodemanager
• Tags: Yarn default ports nodemanager resourcemanager
• Assignee: Dave Thompson
• Reporter: Dave Thompson
• Created: 24/Feb/12 21:46
• Updated: 01/Mar/12 13:58
• Resolved: 29/Feb/12 15:54

Description

The default port numbers chosen for nodemanager and resourcemanager are random and widely spread out creating unnecessary overhead in deployments where site operators care, and deploy many clusters.

Current and proposed new default ports are as follows:

Current New Config Property
------- — ---------------
4344 8040 yarn.nodemanager.localizer.address
45454 8041 yarn.nodemanager.address
9999 8042 yarn.nodemanager.webapp.address

8030 8030(NC) yarn.resourcemanager.scheduler.address
8025 8031 yarn.resourcemanager.resource-tracker.address
8040 8032 yarn.resourcemanager.address
8141 8033 yarn.resourcemanager.admin.address

Affected files include: embedded defaults (YarnConfiguration.java), yarn-default.xml, documentation and unit tests.