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README
Apache-2.0

Elastic-Job - 分布式作业调度解决方案

Build Status Maven Status Coverage Status GitHub release License

概述

Elastic-Job是一个分布式调度解决方案,由两个相互独立的子项目Elastic-Job-Lite和Elastic-Job-Cloud组成。

Elastic-Job-Lite定位为轻量级无中心化解决方案,使用jar包的形式提供分布式任务的协调服务。

Elastic-Job-Cloud使用Mesos + Docker的解决方案,额外提供资源治理、应用分发以及进程隔离等服务。

功能列表

1. Elastic-Job-Lite

  • 分布式调度协调
  • 弹性扩容缩容
  • 失效转移
  • 错过执行作业重触发
  • 作业分片一致性,保证同一分片在分布式环境中仅一个执行实例
  • 自诊断并修复分布式不稳定造成的问题
  • 支持并行调度
  • 支持作业生命周期操作
  • 丰富的作业类型
  • Spring整合以及命名空间提供
  • 运维平台

2. Elastic-Job-Cloud

  • 应用自动分发
  • 基于Fenzo的弹性资源分配
  • 分布式调度协调
  • 弹性扩容缩容
  • 失效转移
  • 错过执行作业重触发
  • 作业分片一致性,保证同一分片在分布式环境中仅一个执行实例
  • 支持并行调度
  • 支持作业生命周期操作
  • 丰富的作业类型
  • Spring整合
  • 运维平台
  • 基于Docker的进程隔离(TBD)

架构图

Elastic-Job-Lite

Elastic-Job-Lite Architecture


Elastic-Job-Cloud

Elastic-Job-Cloud Architecture

Release Notes

Roadmap

快速入门

Elastic-Job-Lite

引入maven依赖

<!-- 引入elastic-job-lite核心模块 -->
<dependency>
    <groupId>com.dangdang</groupId>
    <artifactId>elastic-job-lite-core</artifactId>
    <version>${latest.release.version}</version>
</dependency>

<!-- 使用springframework自定义命名空间时引入 -->
<dependency>
    <groupId>com.dangdang</groupId>
    <artifactId>elastic-job-lite-spring</artifactId>
    <version>${latest.release.version}</version>
</dependency>

作业开发

public class MyElasticJob implements SimpleJob {
    
    @Override
    public void execute(ShardingContext context) {
        switch (context.getShardingItem()) {
            case 0: 
                // do something by sharding item 0
                break;
            case 1: 
                // do something by sharding item 1
                break;
            case 2: 
                // do something by sharding item 2
                break;
            // case n: ...
        }
    }
}

作业配置

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:reg="http://www.dangdang.com/schema/ddframe/reg"
    xmlns:job="http://www.dangdang.com/schema/ddframe/job"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
                        http://www.springframework.org/schema/beans/spring-beans.xsd
                        http://www.dangdang.com/schema/ddframe/reg
                        http://www.dangdang.com/schema/ddframe/reg/reg.xsd
                        http://www.dangdang.com/schema/ddframe/job
                        http://www.dangdang.com/schema/ddframe/job/job.xsd
                        ">
    <!--配置作业注册中心 -->
    <reg:zookeeper id="regCenter" server-lists="yourhost:2181" namespace="dd-job" base-sleep-time-milliseconds="1000" max-sleep-time-milliseconds="3000" max-retries="3" />
    
    <!-- 配置作业-->
    <job:simple id="oneOffElasticJob" class="xxx.MyElasticJob" registry-center-ref="regCenter" cron="0/10 * * * * ?" sharding-total-count="3" sharding-item-parameters="0=A,1=B,2=C" />
</beans>

Elastic-Job-Cloud

引入maven依赖

<!-- 引入elastic-job-cloud执行器模块 -->
<dependency>
    <groupId>com.dangdang</groupId>
    <artifactId>elastic-job-cloud-executor</artifactId>
    <version>${latest.release.version}</version>
</dependency>

作业开发

public class MyElasticJob implements SimpleJob {
    
    @Override
    public void execute(ShardingContext context) {
        switch (context.getShardingItem()) {
            case 0: 
                // do something by sharding item 0
                break;
            case 1: 
                // do something by sharding item 1
                break;
            case 2: 
                // do something by sharding item 2
                break;
            // case n: ...
        }
    }
}

打包作业

tar -cvf yourJobs.tar.gz yourJobs

发布APP

curl -l -H "Content-type: application/json" -X POST -d '{"appName":"foo_app","appURL":"http://app_host:8080/yourJobs.gz","cpuCount":0.1,"memoryMB":64.0,"bootstrapScript":"bin/start.sh","appCacheEnable":true,"eventTraceSamplingCount":0}' http://elastic_job_cloud_host:8899/api/app

发布作业

curl -l -H "Content-type: application/json" -X POST -d '{"jobName":"foo_job","jobClass":"yourJobClass","jobType":"SIMPLE","jobExecutionType":"TRANSIENT","cron":"0/5 * * * * ?","shardingTotalCount":5,"cpuCount":0.1,"memoryMB":64.0,"appName":"foo_app","failover":true,"misfire":true,"bootstrapScript":"bin/start.sh"}' http://elastic_job_cloud_host:8899/api/job/register
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简介

Elastic-Job是一个分布式调度解决方案,由两个相互独立的子项目Elastic-Job-Lite和Elastic-Job-Cloud组成。 展开 收起
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