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Leader Election
Coordinate actions by electing one instance as the leader
Intent & Description
The Leader Election pattern coordinates actions in a distributed application by electing one instance as the leader. The leader manages a collection of collaborating task instances. This ensures that only one instance performs specific tasks while others stand by, preventing duplicate work and conflicts.
Real-world Use Case
Use when you need to coordinate distributed tasks or when you want to prevent duplicate work across instances.
Source
Advantages
- Prevents duplicate work
- Coordinated task execution
- Automatic leader failover
- Distributed coordination
Disadvantages
- Complexity of leader election
- Network partition handling
- Potential split-brain scenarios