[YARN-6872] Ensure apps could run given NodeLabels are disabled post RM switchover/restart

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.9.0, 3.0.0-beta1, 2.8.2
• Component/s: resourcemanager
• Target Version/s: 2.9.0, 3.0.0-beta1, 2.8.2
• Hadoop Flags: Reviewed
• Assignee: Sunil G
• Reporter: Sunil G
• Created: 26/Jul/17 13:56
• Updated: 10/Aug/17 04:06
• Resolved: 02/Aug/17 07:12

Description

Post YARN-6031, few apps could be failed during recovery provided they had some label requirements for AM and labels were disable post RM restart/switchover. As discussed in YARN-6031, its better to run such apps as it may be long running apps as well.