node-cron/node-cron

Features

• Distributed Task Coordinators - Run a scheduled task exactly once across multiple instances using a shared backend while automatically failing over if the elected runner becomes unavailable.
• Node.js Job Schedulers - Provides a Node.js library for scheduling recurring tasks with support for distributed coordination and process isolation.
• Background Task Schedulers - Manages background operations and recurring jobs within an application runtime without external dependencies.
• Cron Scheduling - Parses standard cron syntax strings to trigger function execution at precise intervals.
• Background Task Managers - Manages background tasks by offloading heavy workloads to isolated processes and monitoring their health.
• Distributed Job Schedulers - Ensures scheduled tasks execute exactly once across multiple application instances to prevent overlap.
• Distributed Task Coordination - Coordinates tasks across multiple instances to ensure exactly-once execution and prevent resource contention.
• Task Configuration Policies - Adjust settings like timezones, execution limits, and concurrency rules to ensure background operations align with specific operational requirements and system constraints.
• Background Task Schedulers - Executes scheduled logic in isolated processes to prevent blocking the main application thread.
• Recurring Task Schedulers - Automates recurring background operations using standard cron syntax for precise timing and interval control.
• Background Task Lifecycle Trackers - Provides visibility into scheduling, completion, and failure patterns across the background task ecosystem via lifecycle events.
• Overlap Prevention - Skips scheduled runs if a previous execution is still in progress to prevent overlap.
• Task Lifecycle Management - Provides a consistent interface to start, stop, and remove scheduled jobs at runtime.
• Timezone-Aware Schedulers - Supports timezone-aware scheduling to ensure task execution accuracy across global deployments.
• Distributed Lock Coordination - Ensures scheduled tasks execute exactly once across multiple application instances using shared locks.
• Job Registries - Maintains an internal registry of active jobs to enable runtime inspection and lifecycle control.
• Background Process Offloading - Offloads heavy tasks to separate processes to maintain application responsiveness.
• Task Execution Placement Restrictions - Prevents duplicate task execution across application nodes by checking environment variables to designate specific runner instances.
• Process Forking - Spawns independent child processes to execute resource-intensive logic without blocking the main application event loop.
• Task Execution Monitoring - Tracks task lifecycle events and execution metadata through listeners for detailed performance analysis.
• Execution Observability - Offers a framework for monitoring the health and lifecycle of background jobs in production environments.
• Task Monitoring - Emits lifecycle and execution events to track task progress, failures, and missed runs.
• Developer Utilities - A tiny task scheduler for Node.js.

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