[YARN-308] Improve documentation about what "asks" means in AMRMProtocol

• Type: Sub-task
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.0.2-alpha
• Component/s: api, documentation, resourcemanager
• Assignee: Sandy Ryza
• Reporter: Sandy Ryza
• Created: 03/Jan/13 01:33
• Updated: 06/Feb/15 07:13

Description

It's unclear to me from reading the javadoc exactly what "asks" means when the AM sends a heartbeat to the RM. Is the AM supposed to send a list of all resources that it is waiting for? Or just inform the RM about new ones that it wants?