Home

Chronos

Chronos is a lightweight, high-performance Java scheduling library. It provides a robust alternative to ScheduledExecutorService and Quartz, offering features like cron scheduling, retries, and jitter without external dependencies.

Key Features

• Zero Dependencies: Requires only Java 21+.
• Flexible Scheduling: Supports Cron, Fixed Rate, Fixed Delay, and One-Shot.
• Resilience: Built-in exponential backoff and jitter.
• Observability: Task listeners and metrics/snapshots.

Navigation

• Getting Started: - Installation and basic usage.
• Core Concepts: - Understanding Schedulers, Tasks, and Triggers.
• Cron Syntax: - Supported cron format and examples.
• Resilience Patterns: - Configuring retries and failure handling.
• Observability: - Monitoring your scheduler.
• Threading Model - Configuring thread pools and concurrency
• Comparisons: - Chronos vs SES vs Quartz