Repository Index

😮 Core Interview Questions & Answers For Experienced Java(Backend) Developers | 互联网 Java 工程师进阶知识完全扫盲：涵盖高并发、分布式、高可用、微服务、海量数据处理等领域知识

• java
• distributed-systems
• message-queue
• redis

Conductor is an event driven agentic workflow engine providing durable and highly resilient execution engine for applications and AI Agents

• distributed-systems
• grpc
• java
• javascript

A distributed task scheduling framework.（分布式任务调度平台XXL-JOB）

• xxl-job
• job
• quartz
• glue

about learning Spring Boot via examples. Spring Boot 教程、技术栈示例代码，快速简单上手教程。

• spring-boot
• spring-data-jpa
• mybatis
• thymeleaf

Orchestrate everything, everywhere. The open-source control plane for workflows across data, infrastructure, business processes and AI agents. Declarative YAML, event-driven, any language, Git-versioned, scalable to millions of executions.

• orchestration
• data-orchestration
• high-availability
• infrastructure-as-code

Chat2DB is a free, cross-platform, local-first database client and SQL workspace for developers, DBAs, analysts, and data teams. Connect to 40+ databases, manage data, edit and run SQL, and use your own AI model to generate, explain, and optimize queries. Available on desktop, web, Docker, and CLI, with MCP support.

• ai
• mysql
• oracle
• postgresql

APM, Application Performance Monitoring System

• skywalking
• observability
• apm
• service-mesh

Redisson: Valkey & Redis Java Client and Real-Time Data Platform. Sync/Async/RxJava/Reactive API. Extends Valkey and Redis with over 60 objects and services: Set, Multimap, SortedSet, Map, List, Queue, Deque, Semaphore, Lock, AtomicLong, Map Reduce, Bloom filter, Spring, Tomcat, Scheduler, JCache API, Hibernate, RPC, local cache..

• java
• redis
• lock
• map

🏆 Real-Time no-code, powerful and secure ORM 🚀 providing APIs and Docs without coding by Backend, and Frontend(Client) can customize response JSONs 🏆 实时 零代码、全功能、强安全 ORM 库 🚀 后端接口和文档零代码，前端(客户端) 定制返回 JSON 的数据和结构

• postgresql-database
• tidb
• sqlserver
• oracle

Access your entire server infrastructure from your local desktop

• java
• javafx
• docker
• ssh

AWS Service registry for resilient mid-tier load balancing and failover.

Diskless Kafka® on S3. 10x Cost-Effective. No Cross-AZ Traffic Cost. Autoscale in seconds. Single-digit ms latency. Multi-AZ Availability.

• kafka
• diskless
• automq
• serverless

Activiti is a light-weight workflow and Business Process Management (BPM) Platform targeted at business people, developers and system admins. Its core is a super-fast and rock-solid BPMN 2 process engine for Java. It's open-source and distributed under the Apache license. Activiti runs in any Java application, on a server, on a cluster or in the cloud. It integrates perfectly with Spring, it is extremely lightweight and based on simple concepts.

• java
• bpm
• spring
• cloud

Welcome to the AWS Code Examples Repository. This repo contains code examples used in the AWS documentation, AWS SDK Developer Guides, and more. For more information, see the Readme.md file below.

• aws
• documentation
• examples
• java

Apache Camel is an open source integration framework with 350+ connectors. Write routes in Java, YAML, or XML. Run on Spring Boot, Quarkus, or standalone. Apache License 2.0.

• camel
• integration
• java
• microservices

Cyberduck is a libre FTP, SFTP, WebDAV, Amazon S3, Backblaze B2, Microsoft Azure & OneDrive and OpenStack Swift file transfer client for Mac and Windows.

• webdav
• sftp
• azure
• openstack-swift

The official AWS SDK for Java 1.x (In Maintenance Mode, End-of-Life on 12/31/2025). The AWS SDK for Java 2.x is available here: https://github.com/aws/aws-sdk-java-v2/

• aws-sdk
• java
• aws
• amazon

Apache Linkis builds a computation middleware layer to facilitate connection, governance and orchestration between the upper applications and the underlying data engines.

• sql
• spark
• hive
• pyspark

Distributed Big Data Orchestration Service

• big-data
• bigdata
• orchestration
• configuration

Stream Processing and Complex Event Processing Engine

• streaming-data-processing
• cep
• stream-processing
• complex-event-processing

SirixDB is an an embeddable, bitemporal, append-only database system and event store, storing immutable lightweight snapshots. It keeps the full history of each resource. Every commit stores a space-efficient snapshot through structural sharing. It is log-structured and never overwrites data. SirixDB uses a novel page-level versioning approach.

• xquery
• java
• temporal-data
• storage

Open-source, self-hosted enterprise & site search server built on OpenSearch. Crawls web / file / DB / cloud sources, 20+ languages, REST API, and AI/RAG & semantic search. Apache-2.0.

• java
• elasticsearch
• full-text-search
• lucene

Metrics exporter for Amazon AWS CloudWatch

An extensible distributed system for reliable nearline data streaming at scale

• distributed-systems
• data-streaming
• scalability
• kafka-mirror-maker