[TEZ-3897] Tez Local Mode hang for vertices with broadcast input

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.9.2
• Target Version/s: 0.9.2
• Hadoop Flags: Reviewed
• Assignee: Jonathan Turner Eagles
• Reporter: Jonathan Turner Eagles
• Created: 16/Feb/18 22:46
• Updated: 05/Sep/20 08:27
• Resolved: 05/Mar/18 15:55

Description

Broadcast edges are not taken into consideration for slow-start edges so downstream tasks in local mode can start before upstream tasks. Without preemption in the scheduler, there will be a hang.

Issue Links

• causes: TEZ-4230 LocalContainerLauncher can kill task future too early, causing app hang