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Tags: Monitoring and observability
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TranslatedCAT, as a basic component for server-side projects, provides multi-language clients for Java, C/C++, Node.js, Python, Go, etc. It has been deeply integrated into Meituan Dianping's infrastructure middleware frameworks (MVC framework, RPC framework, database framework, cache framework, etc., message queue, configuration system, etc.), providing Meituan Dianping's business lines with a rich set of system performance metrics, health status, real-time alerts, and more.

:chart_with_upwards_trend: Capturing JVM- and application-level metrics. So you know what's going on.

  • metrics
  • java
  • metrics-library
  • dropwizard-metrics

Log analyser / visualiser for Java HotSpot JIT compiler. Inspect inlining decisions, hot methods, bytecode, and assembly. View results in the JavaFX user interface.

  • jitwatch
  • java
  • javafx
  • hotspot-jit-compiler

P6Spy is a framework that enables database data to be seamlessly intercepted and logged with no code changes to the application.

  • p6spy
  • java
  • jdbc
  • jdbc-logging

jHiccup is a non-intrusive instrumentation tool that logs and records platform "hiccups" - including the JVM stalls that often happen when Java applications are executed and/or any OS or hardware platform noise that may cause the running application to not be continuously runnable.

🔐 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

  • tls
  • ssl
  • certificate
  • keystore

(UNMAINTAINED) inspectIT is the leading Open Source APM (Application Performance Management) tool for analyzing your Java (EE) applications.

Log4j, Knockout.js, WebSockets and Play! Log4Play is a module that provides a log4j appender which publishes log entries to an EventStream. The module also provides an user interface which uses a WebSocket creating a live stream of log messages. You can use this user interface to look at the logs of your application without needing to login to the actual box.