[REEF-1258] Populate Task Exception data properly

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.15
• Component/s: REEF.NET, REEF.NET Evaluator
• Labels: FT
• Assignee: Andrew Chung
• Reporter: Julia Wang
• Created: 16/Mar/16 21:54
• Updated: 09/Jun/16 04:46
• Resolved: 28/Apr/16 20:50

Description

Current, when Exception is thrown from a Task, only Exception.ToString() is passed back from Evaluator to Driver and assigned to FailedTask.data. Message, description and cause are all empty. Even we can get some exception data by passing the string, it would be inefficient at run time. The task exception detail data should be serialize over from evaluator to driver, then populate to FailedTask object.

Issue Links

• is blocked by: REEF-796 Do Avro (de)serialization for FailedTask in bridge
• Is contained by: REEF-1286 Forward .NET Exceptions from the Evaluator to the Driver
• is related to: REEF-1223 IMRU Fault Tolerance - restart failed evaluators
• relates to: REEF-1208 Validate that the REEF.NET Evaluator logs and reports exceptions correctly
• links to: Link to PR