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citus icon citus

Scalable PostgreSQL for multi-tenant and real-time analytics workloads

core_framework icon core_framework

一个基于libev的轻量级lua网络开发框架 —— 也许这就是你想要的美.

d2-admin-start-kit-plus icon d2-admin-start-kit-plus

A folk version of d2-admin-start-kit to help you start D2Admin project quickly and easily. d2-admin-start-kit的模块化开发版本. 通过分离d2admin的内部代码中业务逻辑相关的部分, 使上手D2Admin 更加方便快捷.

db-gpt icon db-gpt

AI Native Data App Development framework with AWEL(Agentic Workflow Expression Language) and Agents

db-gpt-hub icon db-gpt-hub

A repository that contains models, datasets, and fine-tuning techniques for DB-GPT, with the purpose of enhancing model performance in Text-to-SQL

dbgpts icon dbgpts

Intelligent data apps and assets with LLMs

digital-restaurant icon digital-restaurant

DDD. Event sourcing. CQRS. REST. Modular. Microservices. Kotlin. Spring. Axon platform. Apache Kafka. RabbitMQ

java-concurrency-progamming-tutorial icon java-concurrency-progamming-tutorial

Java 高并发多线程编程系列 demo 案例代码 & 教程 & 面试题集锦! !! 包括但不限于线程安全性, atomic包下相关类、CAS原理、Unsafe类、synchronized关键字等的使用及注意事项,volatile关键字的规则和使用，及synchronized关键字的可见性,happens-before原则 安全发布对象的一些核心方法方式,线程安全策略定义不可变对象、线程封闭、同步容器、并发容器等.\,AQS模型设计及相关同步组件的原理和使用，都非常实用，具体包括：CountDownLatch、Semaphore、CyclicBarrier、ReentrantLock与锁、Condition等,FutureTask、Fork/Join框架、BlockingQueue，其中FutureTask讲解时会对比着Callable、Runnable、Future来讲,线程调度-线程池 J.U.C里最后一部分：线程池,ThreadPoolExecutor详细介绍（参数、状态、方法）、线程池类图、Executor框架接口等进行讲解，需要大家能了解线程池的许多细节及配置，并能在实际项目中正确使用 多线程并发拓展讲解 对并发编程做些补充，但都贴近当前的面试，主要讲解死锁产生的条件及预防、多线程并发编程的最佳实践、Spring与线程安全、以及面试都特别喜欢问的HashMap和ConcurrentMap源码细节。当然，面试喜欢问的问题，对实际项目开发也是特别重要的 高并发之扩容 高并发部分：思路，侧重面试，扩容思路，首先介绍垂直扩容和水平扩容的区别，之后介绍数据库读操作扩展和写操作扩展思路。 高并发之缓存 思路，本章讲解高并发中缓存方案。 包含对缓存特征（命中率、最大元素、清空策略）、影响缓存命中率因素、缓存分类和应用场景（本地缓存、分布式缓存）、高并发场景下缓存常见问题（缓存一致性、缓存并发、缓存穿透、雪崩）等的具体介绍。此外，针对大家常用的缓存组件Guava Cache、Memcache、Redis 高并发之消息队列 思路，本章介绍了消息队列的特性（业务无关、FIFO、容灾、性能）、为什么需要消息队列以及消息队列的好处（业务解耦、最终一致性、广播、错峰与流控），最后对当前比较流行的消息队列组件kafka和rabbitmq做了架构分析和特性介绍 高并发之应用拆分 从实际项目拆分步骤讲起，让大家可以实际感受到应用拆分的好处和解决的问题，之后引出对应用拆分原则（业务优先、循序渐进、兼顾技术、可靠测试）和应用拆分时思考的内容（应用之间通信、应用之间数据库设计、避免事务跨应用），并引出对服务化Dubbo和微服务Spring Cloud的框架介绍 高并发之应用限流,自动降级（超时、失败次数、故障、限流）和人工降级（开关）

javascript-algorithms icon javascript-algorithms

📝 Algorithms and data structures implemented in JavaScript with explanations and links to further readings

json-server icon json-server

Get a full fake REST API with zero coding in less than 30 seconds (seriously)

kepler.gl icon kepler.gl

Kepler.gl is a powerful open source geospatial analysis tool for large-scale data sets.

keycloak icon keycloak

Open Source Identity and Access Management For Modern Applications and Services

mpush icon mpush

MPush开源实时消息推送系统

mui icon mui

最接近原生APP体验的高性能框架

netdata icon netdata

Real-time performance monitoring, done right! https://my-netdata.io/

prisma icon prisma

💾 Database Tools incl. ORM, Migrations and Admin UI (Postgres, MySQL & MongoDB)

public-apis icon public-apis

A collective list of free APIs for use in software and web development.

pyshp icon pyshp

This library reads and writes ESRI Shapefiles in pure Python.

quicktype icon quicktype

Generate types and converters from JSON, Schema, and GraphQL

rainbond icon rainbond

Enterprise application cloud operating system(企业应用云操作系统)

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