GTS--阿里巴巴分布式事务全新解决方案

╰半橙微兮° 2022-05-23 06:37 429阅读 0赞

转载自https://bbs.aliyun.com/read/575101.html?spm=a2c4e.11155512.0.0.A0UC1H&accounttraceid=83c3555c-2f16-4555-91a7-27a68d7fd0fe

<table style="margin:0px;padding:0px;line-height:inherit;font-family:PingFangSC, 'helvetica neue', 'hiragino sans gb', arial, 'microsoft yahei ui', 'microsoft yahei', simsun, sans-serif;font-size:12px;vertical-align:baseline;border-spacing:0px;table-layout:fixed;color:rgb(51,51,51);background-color:rgb(255,255,255);"> 
 <tbody style="margin:0px;padding:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;"> 
  <tr style="margin:0px;padding:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:top;"> 
   <td style="margin:0px;padding:10px 10px 15px 30px;font-style:inherit;font-variant:inherit;line-height:inherit;font-family:inherit;font-size:12px;vertical-align:top;border-left-color:rgb(239,239,239);"> 
    <div style="margin:10px 0px;padding:0px 0px 15px;border-width:0px 0px 1px;border-bottom-style:dashed;border-bottom-color:rgb(233,233,233);font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;color:rgb(0,0,0);"> 
     <br> 
    </div> 
    <div style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;"></div> 
    <div style="margin:0px 0px 0px 10px;padding:0px 0px 10px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;text-align:right;float:right;clear:right;"></div> 
    <div style="margin:0px;padding:0px 2px 20px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:1.8em;font-family:Arial;vertical-align:baseline;"> 
     <div style="margin:0px 0px 10px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;font-size:14px;vertical-align:baseline;">
       &nbsp;&nbsp;&nbsp;&nbsp; 现代IT应用中， 
      <span style="margin:0px;padding:0px;border-width:0px 0px 1px;border-bottom-style:solid;border-bottom-color:rgb(250,137,27);font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">服务</span>化SOA作为主流的技术架构被广泛应用到各种 
      <span style="margin:0px;padding:0px;border-width:0px 0px 1px;border-bottom-style:solid;border-bottom-color:rgb(250,137,27);font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">信息</span> 
      <span style="margin:0px;padding:0px;border-width:0px 0px 1px;border-bottom-style:solid;border-bottom-color:rgb(250,137,27);font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">系统</span>。原来一个系统被分拆成若干个服务的集合，产生了跨服务调用的分布式事务 
      <span style="margin:0px;padding:0px;border-width:0px 0px 1px;border-bottom-style:solid;border-bottom-color:rgb(250,137,27);font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">问题</span>。随着Dubbo、SpringCloud等微服务框架的流行，服务被进一步细分，跨服务调用以及服务的嵌套调用越来越广泛。分布式事务已经成为现代分布式系统中必须面对并解决的难题。为此，今天给大家介绍下 
      <span style="margin:0px;padding:0px;border-width:0px 0px 1px;border-bottom-style:solid;border-bottom-color:rgb(250,137,27);font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">阿里</span>巴巴为解决服务调用中的事务问题推出的解决方案GTS。&nbsp;&nbsp;&nbsp;&nbsp; 
      <br>1 GTS简介 
      <br>&nbsp;&nbsp; 全局事务服务（GTS，Global Transaction Service）是一款高性能、高可靠、接入简单的分布式事务中间件，可以为多服务调用或跨 
      <span style="margin:0px;padding:0px;border-width:0px 0px 1px;border-bottom-style:solid;border-bottom-color:rgb(250,137,27);font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;"><span style="margin:0px;padding:0px;border-width:0px 0px 1px;border-bottom-style:solid;border-bottom-color:rgb(250,137,27);font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">数据</span>库</span>访问中产生的事务问题提供一站式解决方案。其主要包括客户端、资源管理器和事务协调器三部分。客户端主要完成事务的发起与结束。资源管理器，完成分支事务的开启、提交、回滚等 
      <span style="margin:0px;padding:0px;border-width:0px 0px 1px;border-bottom-style:solid;border-bottom-color:rgb(250,137,27);font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">操作</span>。事务协调器是GTS的服务端，主要负责分布式事务的整体推进，事务生命周期的管理。 
      <br>2 应用场景 
      <br>GTS可应用在涉及服务调用和跨 
      <span style="margin:0px;padding:0px;border-width:0px 0px 1px;border-bottom-style:solid;border-bottom-color:rgb(250,137,27);font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">数据库</span>操作的多个领域，包括但不限于金融支付、电信、电子商务、快递物流、广告营销、社交、即时通信、手游、视频、物联网、车联网等，典型的应用场景如下： 
      <br>2.1&nbsp;&nbsp;解决微服务化的事务问题 
      <br>&nbsp;&nbsp;目前微服务理念被广泛应用到各IT系统的设计中。共享出行作为近几年现象级应用极大的方便了大家生活。其系统大多基于微服务理念设计，被划分为众多服务，如车况服务、优惠券服务、运维服务、车锁服务、订单服务、支付服务、用户服务等。一个简单的借车业务需要调用车况服务进行检测，调用订单服务生成订单，还需要调用用户服务、车锁服务、运维服务。如果车锁服务调用失败，用户无法使用，必须要回滚订单、车况等服务。可见微服务系统中服务调用非常频繁，而且需要数据的强一致性。GTS通过与dubbo、EDAS、SpringCloud等主流RPC框架无缝集成，可以很好解决服务调用的一致性问题。 
      <br>2.2&nbsp;&nbsp;解决调用第三方服务的过程中产生的事务问题 
      <br>&nbsp;&nbsp;信息系统中很多操作可能需要调用第三方服务才能完成。例如在金融领域，客户贷款通常包括授信和支用申请两个流程，由金融公司和银行的两套独立系统共同完成。典型放款业务一般要调用本地的信用核心、风控中心、额度中心3个服务完成资产评估，然后还需要调用银行系统的身份校验和支用服务才能完成最终的放款，调用需要严格一致。一旦某个服务调用失败，除回滚本地服务外还需要回滚银行系统的两个服务。通过GTS的MT模式可以保证这种场景下第三方服务调用状态的一致行。 
      <br>2.3&nbsp;&nbsp;解决跨消息事务问题 
      <br>有些系统在调用服务的同时, 也会使用消息队列（MQ）。GTS可以和MQ消息队列打通，解决跨消息事务的一致性问题。一个典型的场景是在订票系统中，当用户进行订票操作后，订票系统会调用订单服务、支付服务，同时向MQ发送订票结果。GTS可以保证三个操作的一致性性，如果发送消息失败GTS可以回滚前两次服务调用。 
      <br>2.4解决跨数据库的事务问题 
      <br>&nbsp;&nbsp;大型分布式系统往往涉及的业务非常多，数据可能存储到多个数据库中。业务操作可能需要跨多个数据库甚至是异构数据库才能完成（如一个业务操作可能需要同时向 
      <span style="margin:0px;padding:0px;border-width:0px 0px 1px;border-bottom-style:solid;border-bottom-color:rgb(250,137,27);font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;"><span style="margin:0px;padding:0px;border-width:0px 0px 1px;border-bottom-style:solid;border-bottom-color:rgb(250,137,27);font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">mysql</span></span>和drds两个数据库中更新数据）。GTS可以很好的解决跨库的分布式事务，保证数据的强一致行。&nbsp; 
      <br> 
      <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">有对分布式事务感兴趣的朋友，欢迎加入<span style="margin:0px;padding:0px;border-width:0px 0px 1px;border-bottom-style:solid;border-bottom-color:rgb(250,137,27);font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;">微信</span>群。</span> 
      <br> 
      <br> 
      <div style="margin:30px 0px 0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;color:#808080;">
        [ 此帖被gts团队在2018-02-02 12:46重新编辑 ] 
      </div> 
     </div> 
    </div></td> 
  </tr> 
  <tr style="margin:0px;padding:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;"> 
   <td style="margin:0px;padding:0px 20px;font-style:inherit;font-variant:inherit;line-height:inherit;font-family:inherit;font-size:12px;vertical-align:bottom;background:rgb(255,255,255);"> 
    <div style="margin:0px 0px 10px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;"> 
     <div style="margin:10px 0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;"> 
      <h4 style="margin-top:0px;margin-bottom:0px;padding:0px 10px 0px 30px;border-width:1px 0px;border-top-style:solid;border-bottom-style:solid;border-top-color:rgb(166,203,231);border-bottom-color:rgb(213,230,237);font-style:inherit;font-variant:inherit;font-weight:normal;line-height:25px;font-family:inherit;font-size:12px;vertical-align:baseline;color:rgb(0,0,0);height:25px;background:rgb(243,249,251) url(&quot;images/wind85/file/img.gif&quot;) no-repeat 10px center;"><span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;float:right;color:rgb(153,153,153);"><a style="margin:0px 3px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;color:rgb(1,76,144);background:0px 0px;" rel="nofollow">小图</a>&nbsp;|&nbsp;<a style="margin:0px 3px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:700;line-height:inherit;font-family:inherit;vertical-align:baseline;color:rgb(51,51,51);background:0px 0px;" rel="nofollow">大图</a></span>图片</h4> 
      <ul style="margin-bottom:0px;padding-top:10px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;list-style:none;"> 
       <li style="margin-top:0px;margin-left:0px;padding:0px 0px 10px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;list-style:none;float:none;width:auto;height:auto;"><span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;"><img src="http://bbs.aliyun.com/attachment/Fid_414/414_1129361738553704_11ff13479c980de.png?78" style="margin-bottom:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;max-width:995px;" alt=""></span></li> 
       <li style="margin-top:0px;margin-left:0px;padding:0px 0px 10px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;list-style:none;float:none;width:auto;height:auto;"><span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;"><img src="http://bbs.aliyun.com/attachment/Fid_414/414_1129361738553704_98cae93f71cda3e.png?60" style="margin-bottom:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;max-width:995px;" alt=""></span></li> 
       <li style="margin-top:0px;margin-left:0px;padding:0px 0px 10px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;list-style:none;float:none;width:auto;height:auto;"><span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;"><img src="http://bbs.aliyun.com/attachment/Fid_414/414_1129361738553704_255bc9d868714ee.png?43" style="margin-bottom:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;max-width:995px;" alt=""></span></li> 
       <li style="margin-top:0px;margin-left:0px;padding:0px 0px 10px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;list-style:none;float:none;width:auto;height:auto;"><span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;"><img src="http://bbs.aliyun.com/attachment/Fid_414/414_1129361738553704_ff285484f9cf478.png?41" style="margin-bottom:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;max-width:995px;" alt=""></span></li> 
       <li style="margin-top:0px;margin-left:0px;padding:0px 0px 10px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;list-style:none;float:none;width:auto;height:auto;"><span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;"><img src="http://bbs.aliyun.com/attachment/Fid_414/414_1129361738553704_3f5c534dcd08b2b.png?58" style="margin-bottom:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;max-width:995px;" alt=""></span></li> 
      </ul> 
     </div> 
    </div></td> 
  </tr> 
 </tbody> 
</table>