Distribicron framework: the basic concept and use of the Java library

Distribicron framework: the basic concept and use of the Java library Distribicron is a task scheduling framework for the construction of distributed, high availability and timing scheduling.This article will introduce the basic concepts and usage methods of the DISTRICRON framework, including related programming code and configuration. 1. Basic concept of the Distribicron framework: -Than: Basic execution unit in the Distribicron framework can be defined by applications, including execution logic and scheduling rules. -Task scheduler: Responsible for managing and scheduling tasks to be executed, and assigning tasks to available executors through distributed coordination algorithms. -Executor: Responsible for performing the assigned tasks, which can be a cluster composed of a single or multiple executors, and provides high availability and fault -tolerant mechanism. 2. How to use the distribution framework: Step 1: Introduction to districtdron dependencies First of all, in the Java project dependency management tools, such as Maven or Gradle, add the dependencies of the Distribicron framework. Step 2: Create tasks Create a task class in the application to implement the TASK interface of the Distribicron framework, and rewrite the execution logic and scheduling rules.For example: import com.districron.core.Task; import java.time.LocalDateTime; public class MyTask implements Task { @Override public void execute() { // Execute logic System.out.println ("Executive task-" + localdatetime.now ()); } @Override public String getSchedule() { // Schedule the rules, here is set to execute once a minute return "0 * * * * ?"; } } Step 3: Create and configure the task scheduler In the application of the application, the task scheduler is created and configured with the DISTRICRON framework.For example: import com.districron.scheduler.TaskScheduler; public class MyApp { public static void main(String[] args) { // Create a task scheduler TaskScheduler scheduler = new TaskScheduler(); // Register task scheduler.registerTask(new MyTask()); // Start the task scheduler scheduler.start(); } } Step 4: Run the application After running the application, the Distribics framework will perform the task regularly according to the scheduling rules of the task. 3. Configuration file description: The Distribicron framework provides some optional configuration attributes that can be set in the configuration file of the application.Common configuration attributes include: -Phistricron.scheduler.pool-siZe`: The thread size of the task scheduler, the default is 10. -Phistricron.scheduler.max-O cantempts: The maximum number of attempts for task execution, default is 3. -`` `` `` `` `----”: Review interval (millisecond) for task execution, 5000 default. The above is the introduction of the basic concepts and use methods of the Distribicron framework.By introducing framework dependencies, creating task categories, configuration task scheduers, and running applications, task management of distributed, high availability and regular scheduling can be achieved.Through reasonable configuration framework attributes, the behavior and performance of the task scheduler can also be further adjusted.