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README
Apache-2.0

Seata: Simple Extensible Autonomous Transaction Architecture

Build Status codecov license maven

What is Seata?

A distributed transaction solution with high performance and ease of use for microservices architecture.

Distributed Transaction Problem in Microservices

Let's imagine a traditional monolithic application. Its business is built up with 3 modules. They use a single local data source.

Naturally, data consistency will be guaranteed by the local transaction.

Monolithic App

Things have changed in a microservices architecture. The 3 modules mentioned above are designed to be 3 services on top of 3 different data sources (Pattern: Database per service). Data consistency within every single service is naturally guaranteed by the local transaction.

But how about the whole business logic scope?

Microservices Problem

How Seata do?

Seata is just a solution to the problem mentioned above.

Seata solution

Firstly, how to define a Distributed Transaction?

We say, a Distributed Transaction is a Global Transaction which is made up with a batch of Branch Transaction, and normally Branch Transaction is just Local Transaction.

Global & Branch

There are three roles in Seata Framework:

  • Transaction Coordinator(TC): Maintain status of global and branch transactions, drive the global commit or rollback.
  • Transaction Manager(TM): Define the scope of global transaction: begin a global transaction, commit or rollback a global transaction.
  • Resource Manager(RM): Manage resources that branch transactions working on, talk to TC for registering branch transactions and reporting status of branch transactions, and drive the branch transaction commit or rollback.

Model

A typical lifecycle of Seata managed distributed transaction:

  1. TM asks TC to begin a new global transaction. TC generates an XID representing the global transaction.
  2. XID is propagated through microservices' invoke chain.
  3. RM registers local transaction as a branch of the corresponding global transaction of XID to TC.
  4. TM asks TC for committing or rollbacking the corresponding global transaction of XID.
  5. TC drives all branch transactions under the corresponding global transaction of XID to finish branch committing or rollbacking.

Typical Process

For more details about principle and design, please go to Seata wiki page.

History

Alibaba
  • TXC: Taobao Transaction Constructor. Alibaba middleware team started this project since 2014 to meet the distributed transaction problems caused by application architecture change from monolithic to microservices.
  • GTS: Global Transaction Service. TXC as an Aliyun middleware product with new name GTS was published since 2016.
  • Fescar: we started the open source project Fescar based on TXC/GTS since 2019 to work closely with the community in the future.
Ant Financial
  • XTS: Extended Transaction Service. Ant Financial middleware team developed the distributed transaction middleware since 2007, which is widely used in Ant Financial and solves the problems of data consistency across databases and services.

  • DTX: Distributed Transaction Extended. Since 2013, XTS has been published on the Ant Financial Cloud, with the name of DTX .

Seata Community
  • Seata :Simple Extensible Autonomous Transaction Architecture. Ant Financial joins Fescar, which make it to be a more neutral and open community for distributed transaction, and Fescar be renamed to Seata.

Maven dependency

Depending on the scenario, choose one of the two dependencies: io.seata:seata-all or io.seata:seata-spring-boot-starter.

<properties>
  <seata.version>2.0.0</seata.version>
</properties>

<dependencies>
<!--dependencies for non-SpringBoot application framework-->
  <dependency>
    <groupId>io.seata</groupId>
    <artifactId>seata-all</artifactId>
    <version>${seata.version}</version>
  </dependency>

<!--If your project base on `Spring Boot`, you can directly use the following dependencies-->
<!--Notice: `seata-spring-boot-starter` has already included `seata-all` dependency-->
  <dependency>
    <groupId>io.seata</groupId>
    <artifactId>seata-spring-boot-starter</artifactId>
    <version>${seata.version}</version>
  </dependency>
</dependencies>

Quick Start

Quick Start

Documentation

You can view the full documentation from Seata Official Website: Seata Website page.

Reporting bugs

Please follow the template for reporting any issues.

Security

Please do not use our public issue tracker but refer to our security policy

Contributing

Contributors are welcomed to join the Seata project. Please check CONTRIBUTING andCONTRIBUTING-CNabout how to contribute to this project.

Contact

Seata ecosystem

Contributors

This project exists thanks to all the people who contribute. [Contributors].

License

Seata is under the Apache 2.0 license. See the LICENSE file for details.

Who is using

These are only part of the companies using Seata, for reference only. If you are using Seata, please add your company here to tell us your scenario to make Seata better.

Alibaba Group 蚂蚁金服 阿里云 中航信 联通(浙江) 中国铁塔 滴滴 中国邮政 58集团 南航 TCL 韵达快递 科大讯飞 奇虎360 收钱吧 太极计算机 美的集团 中国网安 政采云 浙江公安厅 特步 中通快递 欧莱雅百库 浙江烟草 波司登 凯京科技 点购集团 求是创新健康 科蓝 康美药业 雁联 学两手 衣二三 北京薪福社 叩丁狼教育 悦途出行 国信易企签 睿颐软件 全房通 有利网 赛维 安心保险 科达科技 会分期 会找房 会通教育 享住智慧 兰亮网络 桔子数科 蓝天教育 烟台欣和 阿康健康 财新传媒 新脉远 乾动新能源 路客精品民宿 深圳好尔美 浙大睿医 深圳市云羿贸易科技有限公司 居然之家 深圳来电科技有限公司 臻善科技 中国支付通 众网小贷 谐云科技 浙江甄品 深圳海豚网 汇通天下 九机网 有好东西 南京智慧盾 数跑科技 拉粉粉 汇通达 易宝支付 维恩贝特 八库 大诚若谷 杭州华网信息 深圳易佰 易点生活 成都数智索 北京超图 江西群享科技有限公司 宋城独木桥网络有限公司 唯小宝(江苏)网络技术有限公司 杭州喜团科技 海典软件 中元健康科技有限公司 宿迁民丰农商银行 上海海智在线 丞家(上海)公寓管理 安徽国科新材科 商银信支付 钛师傅云 广州力生信息 杭州启舰科技有限公司 微链 上海美浮特 江西群享科技有限公司 杭州中威慧云医疗科技有限公司 易族智汇(北京) 佛山宅无限 F5未来商店 重庆雷高科技有限公司 甄品信息科技 行云全球汇跨境电商(杭州分部) 世纪加华 快陪练 西南石油大学 厦门服云信息科技有限公司 领课网络 美通社 睿维科技有限公司 郑州信源信息技术 荣怀集团 浙江群集大数据科技有限公司 北京易点租有限公司 浙江蕙康科技有限公司 致远创想 深圳智荟物联技术有限公司 源讯中国 武汉江寓生活服务有限公司 大账房 上海阳光喔教育科技有限公司 北京新学道教育科技有限公司 北京悦途出行网络科技公司 上海意贝斯特信息技术有限公司 御家汇 广州社众软件 浩鲸科技 华宇信息 中国云尚科技 卫宁健康 聚合联动 熙菱信息 鲸算科技 杭州沃朴物联科技有限公司 深圳市臻络科技有限公司 白云电气 百果园 海尔 六倍体科技 泉州银行 小滴课堂 医百顺 正泰中自控制 中国电子科技网络 卓源软件 重庆直通物流有限公司 海澜集团 南宁微服信息技术有限公司 日事清 小鹏汽车 平安人寿 光大银行
# # Licensed to the Apache Software Foundation (ASF) under one or more # contributor license agreements. See the NOTICE file distributed with # this work for additional information regarding copyright ownership. # The ASF licenses this file to You under the Apache License, Version 2.0 # (the "License"); you may not use this file except in compliance with # the License. You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # header: license: spdx-id: Apache-2.0 copyright-owner: Apache Software Foundation content: | Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. paths-ignore: - '.gitignore' - '.gitattributes' - '.travis.yml' - 'codecov.yml' - 'CONTRIBUTING.md' - 'CONTRIBUTING_CN.md' - 'CODE_OF_CONDUCT.md' - 'README.md' - 'LICENSE' - 'NOTICE' - 'DISCLAIMER' - '**/*.md' - '.github/**' #SPI、spring.factories、spring-configuration-metadata.json、additional-spring-configuration-metadata.json - '**/src/test/resources/META-INF/**' - '**/src/main/resources/META-INF/**' - '**/target/**' - '**/*.iml' - 'mvnw' - 'mvnw.cmd' - '*.sh' - 'changes/**' - 'style/**' - 'script/**' - 'seata-plugins/**' - '.mvn/**' - 'sessionStore/**' - 'distribution/LICENSE-BIN' - 'distribution/NOTICE-BIN' - 'test/src/test/resources/**' - 'serializer/seata-serializer-protobuf/src/main/resources/protobuf/org/apache/seata/protocol/transcation/*.proto' - 'saga/seata-saga-statemachine-designer/node_modules/**' - 'node_modules/**' - 'saga/seata-saga-statemachine-designer/**' - '**/src/test/resources/statelang/**' - 'console/src/main/resources/static/console-fe/**' - '**/org/apache/seata/sqlparser/antlr/**/*.g4' - '**/org/apache/seata/sqlparser/antlr/mysql/parser/*' - '**/integration/**/*.proto' - 'console/src/main/resources/static/**' - 'ext/apm-seata-skywalking-plugin/config/agent.config' - 'server/src/main/resources/lua/redislocker/redislock.lua' - 'server/src/main/resources/banner.txt' comment: on-failure dependency: files: - pom.xml - saga/seata-saga-statemachine-designer/package.json - console/src/main/resources/static/console-fe/package.json excludes: - name: org.apache.seata:* recursive: false # exclude manually confirmed license # BSD-3-Clause https://www.npmjs.com/package/universal-canvas-context - name: universal-canvas-context recursive: false # BSD-3-Clause https://www.npmjs.com/package/universal-element - name: universal-element recursive: false # remove later https://www.npmjs.com/package/@gcanvas/core - name: "@gcanvas/core" recursive: true # remove later https://www.npmjs.com/package/universal-env - name: universal-env recursive: true

简介

Seata 是一款开源的分布式事务解决方案,提供高性能和简单易用的分布式事务服务 展开 收起
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