[YARN-7094] Document the current known issue with server-side NM graceful decom

• Type: Sub-task
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 3.0.0-beta1
• Fix Version/s: 2.9.0, 3.0.0-beta1
• Component/s: graceful
• Target Version/s: 2.9.0, 3.0.0-beta1
• Hadoop Flags: Reviewed
• Assignee: Robert Kanter
• Reporter: Robert Kanter
• Created: 24/Aug/17 23:40
• Updated: 25/Oct/19 23:26
• Resolved: 31/Aug/17 04:18

Description

Server-side NM graceful decom currently does not work correctly when an RM failover occurs because we don't persist the info in the state store (see YARN-5464). Given time constraints for Hadoop 3 beta 1, we've decided to document this limitation and recommend client-side NM graceful decom in the meantime if you need this functionality (see this comment). Once YARN-5464 is done, we can undo this doc change.

Issue Links

• relates to: YARN-5464 Server-Side NM Graceful Decommissioning with RM HA