What is the role of Apache Flink's JobManager?
- Coordinates and schedules tasks
- Executes parallel data processing tasks
- Handles fault tolerance
- Manages distributed state
The JobManager in Apache Flink is responsible for coordinating and scheduling tasks across the cluster. It receives job submissions, divides them into tasks, schedules these tasks for execution, and monitors their progress. The JobManager also handles failure detection and recovery by restarting failed tasks and maintaining consistency in the application's execution. Essentially, it acts as the orchestrator of the entire Flink job execution process.
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