Elastic-Job - distributed scheduled job solution

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Elastic-Job-Lite Console

Overview

Elastic-Job is a distributed scheduled job solution. Elastic-Job is composited from 2 independent sub projects: Elastic-Job-Lite and Elastic-Job-Cloud.

Elastic-Job-Lite is a centre-less solution, use lightweight jar to coordinate distributed jobs.

Elastic-Job-Lite and Elastic-Job-Cloud provide unified API. Developers only need code one time, then decide to deploy Lite or Cloud as you want.

Features

Distributed schedule job coordinate
Elastic scale in and scale out supported
Failover
Misfired jobs refire
Sharding consistently, same sharding item for a job only one running instance
Self diagnose and recover when distribute environment unstable
Parallel scheduling supported
Job lifecycle operation
Lavish job types
Spring integrated and namespace supported
Web console

Architecture

Elastic-Job-Lite

Release Notes

Roadmap

Quick Start

Add maven dependency

<!-- import elastic-job lite core -->
<dependency>
    <groupId>org.apache.shardingsphere.elasticjob</groupId>
    <artifactId>elastic-job-lite-core</artifactId>
    <version>${lasted.release.version}</version>
</dependency>

<!-- import other module if need -->
<dependency>
    <groupId>org.apache.shardingsphere.elasticjob</groupId>
    <artifactId>elastic-job-lite-spring</artifactId>
    <version>${lasted.release.version}</version>
</dependency>

Job development

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: ...
        }
    }
}

Job configuration

<?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
                        ">
    <!--configure registry center -->
    <reg:zookeeper id="regCenter" server-lists="yourhost:2181" namespace="dd-job" base-sleep-time-milliseconds="1000" max-sleep-time-milliseconds="3000" max-retries="3" />

    <!--configure job -->
    <job:simple id="myElasticJob" class="xxx.MyElasticJob" registry-center-ref="regCenter" cron="0/10 * * * * ?"   sharding-total-count="3" sharding-item-parameters="0=A,1=B,2=C" />
</beans>

zhengdianfang/shardingsphere-elastic-job-lite