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README
Apache-2.0

微服务任务调度平台

使用指南 开发指南 部署指南

背景

无论是互联网应用或者企业级应用,都充斥着大量的批处理任务。我们常常需要一些任务调度系统帮助我们解决问题。随着微服务化架构的逐步演进,单体架构逐渐演变为分布式、微服务架构。在此的背景下,很多原先的任务调度平台已经不能满足业务系统的需求。于是出现了一些基于分布式的任务调度平台。这些平台各有其特点,但各有不足之处,比如不支持任务编排、与业务高耦合、不支持跨平台等问题。不是非常符合公司的需求,因此我们开发了微服务任务调度平台(SIA-TASK)。

SIA是我们公司基础开发平台Simple is Awesome的简称,SIA-TASK(微服务任务调度平台)是其中的一项重要产品,SIA-TASK契合当前微服务架构模式,具有跨平台,可编排,高可用,无侵入,一致性,异步并行,动态扩展,实时监控等特点。

项目简介

SIA-TASK是任务调度的一体式解决方案。对任务进行元数据采集,然后进行任务可视化编排,最终进行任务调度,并且对任务采取全流程监控,简单易用。对业务完全无侵入,通过简单灵活的配置即可生成符合预期的任务调度模型。

SIA-TASK借鉴微服务的设计思想,获取分布在每个任务执行器上的任务元数据,上传到任务注册中心。利用在线方式进行任务编排,可动态修改任务时钟,采用HTTP作为任务调度协议,统一使用JSON数据格式,由调度中心进行时钟解析,执行任务流程,进行任务通知。

关键术语

  • 任务(Task): 基本执行单元,执行器对外暴露的一个HTTP调用接口;
  • 作业(Job): 由一个或者多个存在相互逻辑关系(串行/并行)的任务组成,任务调度中心调度的最小单位;
  • 计划(Plan): 由若干个顺序执行的作业组成,每个作业都有自己的执行周期,计划没有执行周期;
  • 任务调度中心(Scheduler): 根据每个的作业的执行周期进行调度,即按照计划、作业、任务的逻辑进行HTTP请求;
  • 任务编排中心(Config): 编排中心使用任务来创建计划和作业;
  • 任务执行器(Executer): 接收HTTP请求进行业务逻辑的执行;
  • Hunter:Spring项目扩展包,负责执行器中的任务抓取,上传注册中心,业务可依赖该组件进行Task编写。

微服务任务调度平台的特性

  • 基于注解自动抓取任务,在暴露成HTTP服务的方法上加入@OnlineTask注解,@OnlineTask会自动抓取方法所在的IP地址,端口,请求路径,请求方法,请求参数格式等信息上传到任务注册中心(zookeeper),并同步写入持久化存储中,此方法即任务;
  • 基于注解无侵入多线程控制,单一任务实例必须保持单线程运行,任务调度框架自动拦截@OnlineTask注解进行单线程运行控制,保持在一个任务运行时不会被再次调度。而且整个控制过程对开发者完全无感知。
  • 调度器自适应任务分配,任务执行过程中出现失败,异常时。可以根据任务定制的策略进行多点重新唤醒任务,保证任务的不间断执行。
  • 高度灵活任务编排模式,SIA-TASK的设计思想是以任务为原子,把多个任务按照执行的关系组合起来形成一个作业。同时运行时分为任务调度中心和任务编排中心,使得作业的调度和作业的编排分隔开来,互不影响。在我们需要调整作业的流程时,只需要在编排中心进行处理即可。同时编排中心支持任务按照串行,并行,分支等方式组织关系。在相同任务不同任务实例时,也支持多种调度方式进行处理。

微服务任务调度平台设计

SIA-TASK主要分为五个部分:

  • 任务执行器
  • 任务调度中心
  • 任务编排中心
  • 任务注册中心(zookeeper)
  • 持久存储(Mysql) 逻辑架构图

SIA-TASK的主要运行逻辑:

  1. 通过注解抓取任务执行器中的任务上报到任务注册中心
  2. 任务编排中心从任务注册中心获取数据进行编排保存入持久化存储
  3. 任务调度中心从持久化存储获取调度信息
  4. 任务调度中心按照调度逻辑访问任务执行器 逻辑架构图

UI预览

首页提供多维度监控

  • 调度器信息:展示调度器信息(负载能力,预警值),以及作业分布情况。
  • 调度信息:展示调度中心触发的调度次数,作业、任务多维度调度统计。
  • 对接项目统计:对使用项目的系统进行统计,作业个数,任务个数等等。

首页

调度监控提供对已提交的作业进行实时监控展示。
  • 作业状态实时监控:以项目组为单位面板,展示作业运行时状态。
  • 实时日志关联:可以通过涂色状态图标进行日志实时关联展示。

调度监控

任务管理:提供任务元数据的相关操作
  • 任务元数据录入:手动模式的任务,可在此进行录入。
  • 任务连通性测试:提供任务连通性功能测试。
  • 任务元数据其他操作:修改,删除。

Task管理 Task管理

Job管理:提供作业相关操作
  • 任务编排:进行作业的编排。
  • 发布作业: 作业的创建,修改,以及发布。
  • 级联设置:提供存在时间依赖的作业设置。

Job管理

日志管理

Job管理

开源地址

文档中心

其他说明

关于编译代码

  • 建议使用Jdk1.8以上。

版本说明

  • 建议版本1.0.0

版权说明

  • 自身使用 Apache v2.0 协议

其他相关资料

关于我们

(待补充)


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