[FLINK-4400] Leadership Election among JobManagers

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Component/s: Runtime / Coordination
• Assignee: Xiaogang Shi
• Reporter: Xiaogang Shi
• Created: 16/Aug/16 06:21
• Updated: 28/Feb/19 14:13
• Resolved: 22/Aug/16 14:59

Description

• All JobMasters are LeaderContenders
• Once a JobMaster is initialized, the very first thing it has to do is to start the leadership election service and contend for the leadership.
• A JobMaster starts to perform its functionality when it grants the leadership.
• If a JobMaster’s leadership is revoked, it will cancel all performed execution and release all acquired resources.