[TEZ-1243] VertexManagerEvent documentation and use of payload needs fixing

• Type: Sub-task
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Target Version/s: 0.8.6
• Assignee: Unassigned
• Reporter: Hitesh Shah
• Created: 27/Jun/14 17:36
• Updated: 14/Mar/17 03:40

Description

VertexManagerEvent is a public user-visible event. There is no documentation on who can generate it. It mentions Task but can any Input/Output generate this information?

There is no information on the payload structure. Inputs/Outputs that written and available in the runtime library may be completely unrelated to the configured vertex manager of a given vertex.

Also, it uses TezUserPayload which is meant to be internal implementation only as compared to byte[].