[TEZ-3858] Misleading dag level diagnostics in case of invalid vertex event

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.9.1
• Target Version/s: 0.9.1
• Assignee: Zhiyuan Yang
• Reporter: Zhiyuan Yang
• Created: 23/Oct/17 17:58
• Updated: 05/Jan/18 00:17
• Resolved: 27/Oct/17 21:49

Description

When a vertex gets invalid event, the state machine will be transited by InternalErrorTransition. This transition prints this and adds it to dag diagnostic:

("Invalid event " + event.getType() + " on Vertex " + vertex.getLogIdentifier()

But variable event here is V_INTERNAL_ERROR event instead of the event that caused V_INTERNAL_ERROR. V_INTERNAL_ERROR is not the invalid event, the original event is.