[GOBBLIN-233] Add concurrent map to avoid multiple job submission from GobblinHelixJobScheduler

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.12.0
• Assignee: Kuai Yu
• Reporter: Kuai Yu
• Created: 31/Aug/17 17:16
• Updated: 03/Jan/18 06:46
• Resolved: 01/Sep/17 18:21

Description

Current helix job scheduler doesn't examine if any existing job of same type is running in the queue. Need some lock similar protection to avoid multiple job submission to reduce the workload of gobblin and helix.