Ranked by Attention Score: stars gained over the last 90 complete days
51 repositories by Attention Score · Aug 5, 2026 – Nov 2, 2026 (UTC)
🦎 A lightweight, streaming-native, multi-protocol gateway for AI, APIs, and real-time data. Route LLM requests across providers, govern MCP tools, and connect Kafka, MQTT, and HTTP through one high-performance engine with shared security and observability.
Apache Doris is a real-time analytics and hybrid search database for AI agents.
QuestDB is a high performance, open-source, time-series database
APM, Application Performance Monitoring System
An AI-powered next-generation open source real-time observability system.
Logstash - transport and process your logs, events, or other data
Resilience4j is a fault tolerance library designed for Java8 and functional programming
A powerful flow control component enabling reliability, resilience and monitoring for microservices. (面向云原生微服务的高可用流控防护组件)
Zuul is a gateway service that provides dynamic routing, monitoring, resiliency, security, and more.
APM, (Application Performance Management) tool for large-scale distributed systems.
CoreProtect is a blazing fast data logging and anti-griefing tool for Minecraft servers.
:fire: Android developers should collect the following utils(updating).
Zipkin is a distributed tracing system
flink learning blog. http://www.54tianzhisheng.cn/ 含 Flink 入门、概念、原理、实战、性能调优、源码解析等内容。涉及 Flink Connector、Metrics、Library、DataStream API、Table API & SQL 等内容的学习案例，还有 Flink 落地应用的大型项目案例（PVUV、日志存储、百亿数据实时去重、监控告警）分享。欢迎大家支持我的专栏《大数据实时计算引擎 Flink 实战与性能优化》
OpenTelemetry Java SDK
An application observability facade for the most popular observability tools. Think SLF4J, but for observability.
CAT 作为服务端项目基础组件，提供了 Java, C/C++, Node.js, Python, Go 等多语言客户端，已经在美团点评的基础架构中间件框架（MVC框架，RPC框架，数据库框架，缓存框架等，消息队列，配置系统等）深度集成，为美团点评各业务线提供系统丰富的性能指标、健康状况、实时告警等。
A process for collecting metrics using JMX MBeans for Prometheus consumption
📌 异步线程池框架，支持线程池动态变更&监控&报警，无需修改代码轻松引入。Asynchronous thread pool framework, support Thread Pool Dynamic Change & monitoring & Alarm, no need to modify the code easily introduced.
An extensible Java library for HTTP request and response logging
Production-safe dynamic tracing and diagnostics for Java applications—attach to live JVMs with no restart or recompilation.
:chart_with_upwards_trend: Capturing JVM- and application-level metrics. So you know what's going on.
JavaMelody : monitoring of JavaEE applications
Prometheus instrumentation library for JVM applications
P6Spy is a framework that enables database data to be seamlessly intercepted and logged with no code changes to the application.
FlexyPool adds metrics and failover strategies to a given Connection Pool, allowing it to resize on demand.
Provides tracing abstractions over tracers and tracing system reporters.
Small set of tools for JVM troublshooting, monitoring and profiling.
📄The reliable, generic, fast and flexible logging framework for Android
Metrics exporter for Amazon AWS CloudWatch
🔐 An SSL library for configuring http client or server. Rich with features such as hot reloading ssl and trusting additional certificates during runtime, combining multiple keystores, loading pem files and os/jdk certificates, logging certificate information during ssl handshake, bypassing ssl configuration from other libraries and more
Provides situational awareness of Industrial Control Systems (ICS) and Supervisory Control and Data Acquisition (SCADA) networks in support of network security assessments. #nsacyber
Data Quality and Observability platform for the whole data lifecycle, from profiling new data sources to full automation with Data Observability. Configure data quality checks from the UI or in YAML files, let DQOps run the data quality checks daily to detect data quality issues.
JVM Profiler Sending Metrics to Kafka, Console Output or Custom Reporter
The Java microservice lib. QBit is a reactive programming lib for building microservices - JSON, HTTP, WebSocket, and REST. QBit uses reactive programming to build elastic REST, and WebSockets based cloud friendly, web services. SOA evolved for mobile and cloud. ServiceDiscovery, Health, reactive StatService, events, Java idiomatic reactive programming for Microservices.
Automon combines the power of AOP (AspectJ) with monitoring or logging tools you already use to declaratively trace and monitor your Java code, the JDK, and 3rd party libraries.
Detects smells and computes metrics of Java code
Fast scalable time series database
an open source solution to application performance monitoring for java server applications
Android Library for Logging RxJava Observables and Subscribers.
Minimalist Java framework for rapidly creating scalable, containerless, RESTful microservices. Ship a production-quality, headless, RESTful API in the shortest time possible. Uses Netty for HTTP, Jackson for JSON, Metrics for metrics, properties files for configuration. Sub-projects and plugins enable, NoSQL, Swagger, Auth0, HAL integration, etc.
(UNMAINTAINED) inspectIT is the leading Open Source APM (Application Performance Management) tool for analyzing your Java (EE) applications.
A library that simplifies error handling for Functional Programming in Java
Java Structured Logging API for Logback, Log4J2, and JUL
Addon bundle for Dropwizard to support logging to a GELF-enabled server like Graylog or logstash
Dropwizard Zipkin Bundle
Java lib for monitoring directories or individual files via java.nio.file.WatchService
assertions for logging with logback
Simple API monitoring & analytics for Java web apps
Spring Boot starter available via JitPack and GitHub Releases, with an Actuator endpoint for identifying used, unused, and indeterminate starters at runtime.