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LGPL-3.0

Raincat

Codacy Badge Total lines License Maven Central Javadocs Build Status QQ群 强一致性分布式事务,是基于二阶段提交+本地事务补偿机制来实现。原理介绍

基于java语言来开发(JDK1.8),支持dubbo,motan,springcloud进行分布式事务。

Features

  • 框架特性

    • 无缝集成spring 或 spring boot。

    • 支持dubbo,motan,springcloud,等rpc框架进行分布式事务。

    • 事务发起者,参与者与协调者底层基于netty长连接通信,稳定高效。

    • 协调者采用eureka做注册中心,支持集群模式。

    • 采用Aspect AOP 切面思想与Spring无缝集成。

    • 配置简单,集成简单,源码简洁,稳定性高,已在生产环境使用。

    • 内置经典的分布式事务场景demo工程,并有swagger-ui可视化界面可以快速体验。

  • 事务角色

    • 事务发起者(可理解为消费者 如:dubbo的消费者,springcloud的调用方),发起分布式事务

    • 事务参与者(可理解为提供者 如:dubbo的提供者,springcloud的rest服务提供者),参与事务发起者的事务

    • 事务协调者(tx-manager),协调分布式事务的提交,回滚等。

  • 技术方案

    • 协调者(tx-manager)采用eureka作为注册中心,集群配置,达到服务的高可用,采用redis集群来分布式存储事务数据, springboot 提供rest服务,采用netty与参与者,发起者进行长连接通信。

    • 发起者与协调者,采用Aspect AOP 切面思想,SPI,多线程,异步回调,线程池,netty通信等技术。

  • SPI扩展

    • 本地事务恢复,支持redis,mogondb,zookeeper,file,mysql等关系型数据库
    • 本地事务序列化保存,支持java,hessian,kryo,protostuff
    • netty通信序列化方式,支持 hessian,kryo,protostuff

官网

http://dromara.org 或者 https://dromara.org 有时候https打不开。

文档

http://dromara.org/website/zh-cn/docs/raincat/index.html

视频源码分析

环境搭建

启动过程

事务提交

回滚恢复

管理后台

流程图

FAQ

  • 为什么我下载的代码后,用idea打开没有相应的get set 方法呢?

    答:因为框架使用了Lombok包,它是在编译的时期,自动生成get set方法,并不影响运行,如果觉得提示错误难受,请自行下载lombok包插件,lombok官网
  • 为什么我运行demo工程,找不到applicationContent.xml呢?

    答:请设置项目的资源文件夹。
  • 为什么我启动admin项目的时候,会报mongo 集群连接错误呢?

    答:这是因为项目里面有mongo代码,spring boot会自动配置,该错误没有关系,只要admin项目能正常启动就行。

Support

  • 如有任何问题欢迎加入QQ群进行讨论

  • 微信公众号

Contribution

GNU LESSER GENERAL PUBLIC LICENSE Version 3, 29 June 2007 Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/> Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. This version of the GNU Lesser General Public License incorporates the terms and conditions of version 3 of the GNU General Public License, supplemented by the additional permissions listed below. 0. Additional Definitions. As used herein, "this License" refers to version 3 of the GNU Lesser General Public License, and the "GNU GPL" refers to version 3 of the GNU General Public License. "The Library" refers to a covered work governed by this License, other than an Application or a Combined Work as defined below. An "Application" is any work that makes use of an interface provided by the Library, but which is not otherwise based on the Library. Defining a subclass of a class defined by the Library is deemed a mode of using an interface provided by the Library. A "Combined Work" is a work produced by combining or linking an Application with the Library. The particular version of the Library with which the Combined Work was made is also called the "Linked Version". The "Minimal Corresponding Source" for a Combined Work means the Corresponding Source for the Combined Work, excluding any source code for portions of the Combined Work that, considered in isolation, are based on the Application, and not on the Linked Version. The "Corresponding Application Code" for a Combined Work means the object code and/or source code for the Application, including any data and utility programs needed for reproducing the Combined Work from the Application, but excluding the System Libraries of the Combined Work. 1. Exception to Section 3 of the GNU GPL. You may convey a covered work under sections 3 and 4 of this License without being bound by section 3 of the GNU GPL. 2. Conveying Modified Versions. If you modify a copy of the Library, and, in your modifications, a facility refers to a function or data to be supplied by an Application that uses the facility (other than as an argument passed when the facility is invoked), then you may convey a copy of the modified version: a) under this License, provided that you make a good faith effort to ensure that, in the event an Application does not supply the function or data, the facility still operates, and performs whatever part of its purpose remains meaningful, or b) under the GNU GPL, with none of the additional permissions of this License applicable to that copy. 3. Object Code Incorporating Material from Library Header Files. The object code form of an Application may incorporate material from a header file that is part of the Library. You may convey such object code under terms of your choice, provided that, if the incorporated material is not limited to numerical parameters, data structure layouts and accessors, or small macros, inline functions and templates (ten or fewer lines in length), you do both of the following: a) Give prominent notice with each copy of the object code that the Library is used in it and that the Library and its use are covered by this License. b) Accompany the object code with a copy of the GNU GPL and this license document. 4. Combined Works. You may convey a Combined Work under terms of your choice that, taken together, effectively do not restrict modification of the portions of the Library contained in the Combined Work and reverse engineering for debugging such modifications, if you also do each of the following: a) Give prominent notice with each copy of the Combined Work that the Library is used in it and that the Library and its use are covered by this License. b) Accompany the Combined Work with a copy of the GNU GPL and this license document. c) For a Combined Work that displays copyright notices during execution, include the copyright notice for the Library among these notices, as well as a reference directing the user to the copies of the GNU GPL and this license document. d) Do one of the following: 0) Convey the Minimal Corresponding Source under the terms of this License, and the Corresponding Application Code in a form suitable for, and under terms that permit, the user to recombine or relink the Application with a modified version of the Linked Version to produce a modified Combined Work, in the manner specified by section 6 of the GNU GPL for conveying Corresponding Source. 1) Use a suitable shared library mechanism for linking with the Library. A suitable mechanism is one that (a) uses at run time a copy of the Library already present on the user's computer system, and (b) will operate properly with a modified version of the Library that is interface-compatible with the Linked Version. e) Provide Installation Information, but only if you would otherwise be required to provide such information under section 6 of the GNU GPL, and only to the extent that such information is necessary to install and execute a modified version of the Combined Work produced by recombining or relinking the Application with a modified version of the Linked Version. (If you use option 4d0, the Installation Information must accompany the Minimal Corresponding Source and Corresponding Application Code. If you use option 4d1, you must provide the Installation Information in the manner specified by section 6 of the GNU GPL for conveying Corresponding Source.) 5. Combined Libraries. You may place library facilities that are a work based on the Library side by side in a single library together with other library facilities that are not Applications and are not covered by this License, and convey such a combined library under terms of your choice, if you do both of the following: a) Accompany the combined library with a copy of the same work based on the Library, uncombined with any other library facilities, conveyed under the terms of this License. b) Give prominent notice with the combined library that part of it is a work based on the Library, and explaining where to find the accompanying uncombined form of the same work. 6. Revised Versions of the GNU Lesser General Public License. The Free Software Foundation may publish revised and/or new versions of the GNU Lesser General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. Each version is given a distinguishing version number. If the Library as you received it specifies that a certain numbered version of the GNU Lesser General Public License "or any later version" applies to it, you have the option of following the terms and conditions either of that published version or of any later version published by the Free Software Foundation. If the Library as you received it does not specify a version number of the GNU Lesser General Public License, you may choose any version of the GNU Lesser General Public License ever published by the Free Software Foundation. If the Library as you received it specifies that a proxy can decide whether future versions of the GNU Lesser General Public License shall apply, that proxy's public statement of acceptance of any version is permanent authorization for you to choose that version for the Library.

简介

2阶段提交分布式事务中间件(Implement by 2 pc) 展开 收起
Java
LGPL-3.0
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