[SPARK-17623] Failed tasks end reason is always a TaskFailedReason, types should reflect this

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.0.0
• Fix Version/s: 2.1.0
• Component/s: Scheduler, Spark Core
• Assignee: Imran Rashid
• Reporter: Imran Rashid
• Created: 21/Sep/16 15:52
• Updated: 21/Sep/16 21:46
• Resolved: 21/Sep/16 21:46

Description

Minor code cleanup. In TaskResultGetter, enqueueFailedTask currently deserializes the result as a TaskEndReason. But the type is actually more specific, its a TaskFailedReason. This just leads to more blind casting later on – it would be more clear if the msg was cast to the right type immediately, so method parameter types could be tightened.

Issue Links

• links to: [Github] Pull Request #15181 (squito)