[MAPREDUCE-3629] Remove sleep from MRAppMaster during app-finish.

• Type: Task
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.23.0
• Component/s: mrv2
• Assignee: Unassigned
• Reporter: Amol Kekre
• Created: 06/Jan/12 02:15
• Updated: 09/Mar/15 20:19

Description

MRAppMaster waits for 5 secs during app-finish, this was needed before we had
client-side redirection. This affects the app execution in that, AppMaster will killed by the NM once NM gets
confirmation from RM.

AppMaster should go away immediately. Also, the done call to RM from AM should be the last thing AM ever does.
Otherwise, today, JobHistory writing gets interrupted if AM gets killed by the NM.

Issue Links

• is related to: MAPREDUCE-4788 Job are marking as FAILED even if there are no failed tasks in it