[HADOOP-12097] Allow port range to be specified while starting webapp

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.7.0
• Fix Version/s: 2.9.0, 3.0.0-alpha4
• Labels: webapp
• Target Version/s: 2.9.0
• Hadoop Flags: Reviewed
• Assignee: Varun Saxena
• Reporter: Varun Saxena
• Created: 17/Jun/15 12:45
• Updated: 25/Oct/19 20:26
• Resolved: 06/Feb/17 04:14

Description

This can be used by AM while starting its webapp.
Currently a random port is chosen, which is never a good idea.

And Webapps has facility to allow only a specific port to be configured which may be occupied. A port range in case of AM, hence will be useful.

Issue Links

• is depended upon by: MAPREDUCE-6404 Allow AM to specify a port range for starting its webapp
• relates to: MAPREDUCE-6338 MR AppMaster does not honor ephemeral port range
• relates to: MAPREDUCE-4079 Allow MR AppMaster to limit ephemeral port range.