[YARN-1618] Fix invalid RMApp transition from NEW to FINAL_SAVING

• Type: Sub-task
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 2.2.0
• Fix Version/s: 2.3.0
• Component/s: resourcemanager
• Target Version/s: 2.3.0
• Assignee: Karthik Kambatla
• Reporter: Karthik Kambatla
• Created: 21/Jan/14 02:17
• Updated: 03/Nov/14 18:33
• Resolved: 29/Jan/14 18:24

Description

YARN-891 augments the RMStateStore to store information on completed applications. In the process, it adds transitions from NEW to FINAL_SAVING. This leads to the RM trying to update entries in the state-store that do not exist. On ZKRMStateStore, this leads to the RM crashing.

Previous description:
ZKRMStateStore fails to handle updates to znodes that don't exist. For instance, this can happen when an app transitions from NEW to FINAL_SAVING. In these cases, the store should create the missing znode and handle the update.

Issue Links

• relates to: YARN-1671 Revisit RMApp transitions from NEW on RECOVER