[YARN-3946] Update exact reason as to why a submitted app is in ACCEPTED state to app's diagnostic message

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.6.0
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Component/s: capacity scheduler, resourcemanager
• Hadoop Flags: Reviewed
• Assignee: Naganarasimha G R
• Reporter: Sumit Nigam
• Created: 21/Jul/15 10:07
• Updated: 18/Oct/16 09:11
• Resolved: 14/Dec/15 19:16

Description

Currently there is no direct way to get the exact reason as to why a submitted app is still in ACCEPTED state. It should be possible to know through RM REST API as to what aspect is not being met - say, queue limits being reached, or core/ memory requirement not being met, or AM limit being reached, etc.

Issue Links

• breaks: MAPREDUCE-6579 JobStatus#getFailureInfo should not output diagnostic information when the job is running
• is depended upon by: YARN-4329 Allow fetching exact reason as to why a submitted app is in ACCEPTED state in Fair Scheduler
• relates to: YARN-4091 Add REST API to retrieve scheduler activity