uncode-schedule: distributed task scheduling component based on ZooKeeper
The editor of Downcodes will give you an in-depth understanding of uncode-schedule, a lightweight distributed task scheduling component based on ZooKeeper. It is simple and easy to use. You only need to introduce the jar package and no additional server deployment is required. uncode-schedule ensures that all tasks are executed in the cluster without duplication or omission, and supports dynamic addition and deletion of tasks.
Function overview
The following are the main functions of uncode-schedule:
1. Distributed task scheduling system based on ZooKeeper + Spring Task/Quartz/Uncode Task
uncode-schedule uses ZooKeeper's distributed coordination capabilities and combines task scheduling frameworks such as Spring Task, Quartz or Uncode Task to implement distributed task scheduling.
2. Ensure that each task is not executed repeatedly on different nodes in the cluster
uncode-schedule uses ZooKeeper's node election mechanism to ensure that only one node in the cluster is responsible for executing each task to avoid repeated execution.
3. When a single task node fails, it will automatically transfer to other task nodes to continue execution.
When the node responsible for executing a task fails, uncode-schedule will automatically transfer the task to other available nodes in the cluster to ensure continuous execution of the task.
4. ZooKeeper must be available when the task node is started. When the ZooKeeper cluster is unavailable during the running period of the task node, the task node will keep running in the state before it became available, and the ZooKeeper cluster will resume normal operation.
uncode-schedule relies on ZooKeeper to coordinate task scheduling, so the ZooKeeper cluster must be available when the task node is started. If the ZooKeeper cluster fails, the task nodes will remain in their previous running state until the ZooKeeper cluster returns to normal.
5. Support dynamic addition, modification and deletion of tasks, and support task suspension and restart
uncode-schedule provides flexible task management functions, and users can dynamically add, modify, delete and pause/restart tasks as needed.
6. Add IP blacklist to filter nodes that do not need to perform tasks
Users can configure an IP blacklist to filter out nodes that do not need to perform tasks and improve cluster resource utilization.
7. Background management and task execution monitoring
uncode-schedule provides a background management interface to facilitate users to view task status, logs and other information, and monitor task execution.
8. Support Spring Boot and support a single task to run multiple instances (using extended suffix)
uncode-schedule is integrated with Spring Boot and supports configuring multiple instances for the same task and distinguishing them through extension suffixes to meet more complex application scenarios.
illustrate
It should be noted that when a single task node fails, it is necessary to ensure that the business logic has data integrity or idempotence to ensure the reliability of task execution.
Modular architecture
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example:
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Apache-2.0 license
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Table of Contents
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Installation and deployment
User Guide
Configuration details
API documentation
FAQ
Development Guide
Downcodes Editor’s Suggestions
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Optimize performance and reduce resource consumption
Enhance scalability and support more task types
Improve security and stability
Improve documentation and sample code to lower the threshold for use
TODO: Add some links to relevant resources and information, such as:
Github repository of uncode-schedule
Official documentation of uncode-schedule
Sample project for uncode-schedule
Related technology blogs and articles
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