[SPARK-20869] Master should clear failed apps when worker down

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Incomplete
• Affects Version/s: 2.3.0
• Component/s: Spark Core
• Labels: bulk-closed
• Assignee: Unassigned
• Reporter: Li Yichao
• Created: 24/May/17 16:46
• Updated: 08/Oct/19 05:41
• Resolved: 08/Oct/19 05:41

Description

In `Master.removeWorker`, master clears executor and driver state, but does not clear app state. App state is cleared when received `UnregisterApplication` and when `onDisconnect`, the first is when driver shutdown gracefully, the second is called when `netty`'s `channelInActive` is called (which is called when channel is closed), both of which can not handle the case when there is a network partition between master and worker.

Follow the steps in SPARK-19900, and see the screenshots when worker1 partitions with master, the app `app-xxx-000` is still running instead of finished because of worker1 is down.

cc CodingCat