[YARN-5696] add container_tag to Distributedshell's env

• Type: Improvement
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Component/s: applications/distributed-shell
• Assignee: kyungwan nam
• Reporter: kyungwan nam
• Created: 03/Oct/16 02:30
• Updated: 04/Oct/16 02:58

Description

a number of containers can be allocated by "num_containers" option.
but, there is no way to assign different input to each container.

each container has a unique id between 0 and (num_containers - 1).
so, user can assign different input (or role) per container.