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2017阿里巴巴中间件性能挑战赛第一赛季,排名26/1959
2015 ali中间件比赛项目,1. 通信模块: 涉及到了消息架构设计,每一个主题分配1-2个队列,这个是可以横向增加,考虑到了一个主题有多个消费者订阅,而且还有过滤条件,为了负载均衡,对应的队列投递消息是根据随机数对队列数取膜完成的。以上是内存队列。 2. 持久化系统:因为考虑到机器坏掉,broker不可用等等原因导致的消息丢失,就需要每次收到的消息必须及时落盘,这个就是比赛优化的重中之重。为此设计了一个小型的文件系统,借鉴阿里的rocketmq. 用一个大的日志文件,一般1G大小每个,和内存队列的结构映射到实体队列。整个日志文件是顺序文件,每条消息固定大小,里面有对应的队列号,消息号,还有长度等等。这个方便恢复消息到实体队列用的。 同步刷盘,异步刷盘,持久化必须可靠,所以一般是同步刷盘到日志文件,日志文件定时异步刷盘到实体队列,实体队列里面是索引,消息的本体在日志文件里面。为了加快大面积的写入速度,用了内存映射:内存映射文件首先将外存上的文件映射到内存中的一块连续区域,被当成一个字节数组进行处理,读写操作直接对内存进行操作,而后再将内存区域重新映射到外存文件,这就节省了中间频繁的对外存进行读写的时间,大大降低了读写时间
Aliware2018-service-mesh
Some examples of code extracting information from Java source files using JavaParser
用自定义注解做点什么
https://blog.csdn.net/QXC1281/article/details/89070285
Workflow engine for Kubernetes
A curated list of awesome frameworks, libraries and software for the Java programming language.
An updated version of the classic "Basic Computer Games" book, with well-written examples in a variety of common programming languages
海量小文件分布式存储系统
The C++ Core Guidelines are a set of tried-and-true guidelines, rules, and best practices about coding in C++
DCI Architecture Development Kit (DCI ADK)
Data Center monitor, included zookeeper, kafka, druid
Learn and understand Docker technologies, with real DevOps practice!
Guide on Domain-Driven Design, Hexagonal architecture, best practices etc.
The simple, stupid workflow engine for Java
The simple, stupid rules engine for Java
🚀 纯 Java 注解,快速开发 Admin 管理后台。不生成任何代码、零前端代码、零 CURD、自动建表、注解式API,支持所有主流数据库,支持自定义页面,支持多数据源,提供二十几类业务组件,十几种展示形式,支持逻辑删除,动态定时任务,前端后端分离等。核心技术:Spring Boot、JPA、Reflect、TypeScript、NG-ZORRO等。 开源不易,记得右上角点个star鼓励作者~
Java / Netty client for etcd, the highly-available key value store for shared configuration and service discovery.
这是一个对文件存储、 JDK8日期,分布式锁、分布式限流、跨域请求,国际化、防XSS攻击、关键字脱敏的增强包,拥有良好的扩展性,一切功能都是基于注解化驱动
FastDFS分布式文件系统搭建、vue+spring boot小项目搭建
文件服务器连接池实现——TrackerServer连接池
:books: Freely available programming books
刷算法全靠套路,认准 labuladong 就够了!English version supported! Crack LeetCode, not only how, but also why.
go-fastdfs 是一个简单的分布式文件系统(私有云存储),具有无中心、高性能,高可靠,免维护等优点,支持断点续传,分块上传,小文件合并,自动同步,自动修复。Go-fastdfs is a simple distributed file system (private cloud storage), with no center, high performance, high reliability, maintenance free and other advantages, support breakpoint continuation, block upload, small file merge, automatic synchronization, automatic repair.(similar fastdfs).
Quickly build arbitrary size Hadoop Cluster based on Docker
Hasor是一套基于 Java 语言的开发框架,区别于其它框架的是 Hasor 有着自己一套完整的体系,同时还可以和先有技术体系做到完美融合。它包含:IoC/Aop容器框架、Web框架、Jdbc框架、RSF分布式RPC框架、DataQL引擎,等几块。
Apache Dubbo (incubating) is a high-performance, java based, open source RPC framework.
Repo containing the sample projects associated with the iOS7 Day-by-Day blog series
A declarative, efficient, and flexible JavaScript library for building user interfaces.
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
The Web framework for perfectionists with deadlines.
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
We are working to build community through open source technology. NB: members must have two-factor auth.
Open source projects and samples from Microsoft.
Google ❤️ Open Source for everyone.
Alibaba Open Source for everyone
Data-Driven Documents codes.
China tencent open source team.