[TEZ-908] Support for DAG modifications at runtime

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Assignee: Bikas Saha
• Reporter: Bikas Saha
• Created: 02/Mar/14 01:46
• Updated: 02/Mar/14 02:19

Description

Umbrella jira to track different kinds of DAG modifications at runtime. Tez currently supports changing the concurrency of a vertex and the edge connection between vertices at runtime.

Sub-Tasks

• Generalize change in connected vertices when the parallelism of a vertex changes: Resolved
• Support addition of vertices to a running DAG: Open
• Support for submitting DAGs that reference existing DAGs in a session: Open