oldmanpushcart/greys-anatomy
Greys Anatomy
Este proyecto es una herramienta de diagnóstico de runtime de Java y framework de instrumentación de bytecode. Proporciona una interfaz de resolución de problemas remota para inspeccionar sistemas Java en vivo, analizar trazas de ejecución y monitorear el rendimiento de métodos sin requerir reinicios de la aplicación.
El sistema se distingue por su capacidad para modificar clases de Java en tiempo real para capturar parámetros y valores de retorno, combinado con un motor de scripting basado en JavaScript para lógica de diagnóstico personalizada. Además, soporta la depuración en vivo colaborativa, permitiendo que múltiples usuarios se conecten a un único proceso remoto simultáneamente para compartir sesiones de diagnóstico.
Las capacidades más amplias de la herramienta incluyen métricas de rendimiento a nivel de método, grabación del historial de ejecución cronológico y análisis de estado en vivo. Proporciona utilidades para la captura de la pila de llamadas (call stack), inspección del entorno de ejecución e interceptación condicional de métodos para evaluar expresiones dinámicas dentro de un entorno en ejecución.
Features
- Java Diagnostic Toolkits - Provides a comprehensive toolkit for real-time diagnosis of live Java applications via method interception and state inspection.
- Runtime Bytecode Instrumentation - Implements dynamic modification of compiled bytecode during application execution via a runtime agent.
- Runtime Call-Stack Capturers - Extracts active execution frames to determine the trigger source of a specific method call.
- Execution Trace and Log Analyzers - Captures and visualizes historical execution streams and call stacks to reconstruct application behavior.
- Runtime Bytecode Injection - Modifies compiled instructions in memory during execution to insert custom diagnostic logic without restarting the system.
- Class Metadata Inspection - Provides utilities for discovering and analyzing loaded classes and their methods within a running JVM process.
- Class Method Interception - Intercepts methods within specific classes to capture parameters and return values using conditional filters.
- Java Instrumentation Frameworks - Provides a framework to capture execution timing, exceptions, and arguments in Java applications via runtime instrumentation.
- JVM Remote Connection Agents - Provides the fundamental communication link required to connect a remote console to a running JVM.
- Runtime Value Inspections - Allows observation and custom formatting of input parameters and return values for live method calls.
- System and App Trace Recorders - Records and replays method parameters, return values, and exception details to analyze data flow.
- JVM Execution State Analysis - Inspects loaded classes, execution contexts, and stack traces in a running system without requiring a restart.
- Remote Java Troubleshooting - Connects to a running JVM from a remote console to perform simultaneous collaborative troubleshooting of production issues.
- Method Execution Tracking - Monitors the invocation sequence and data flow of specific methods within a running system.
- Application Stack Trace Capturers - Provides utilities for retrieving and analyzing the current execution flow from a target Java program to identify bottlenecks.
- Method Call Profiling - Tracks the frequency and duration of Java method calls for real-time performance analysis and bottleneck identification.
- Call Argument History - Records the history of method input parameters and return values for detailed retrospective data analysis.
- Data Interception - Captures parameters and return values from Java methods at runtime for behavioral analysis.
- Debugging Session Sharing - Allows multiple users to share live diagnostic sessions and execution rules for collaborative troubleshooting.
- Execution History Logs - Logs a chronological timeline of method calls and arguments for retrospective analysis of system state.
- Method Execution Logs - Records every method execution detail chronologically to reconstruct the behavior of the system.
- Embedded JavaScript Scripting - Integrates a JavaScript runtime into the Java application to provide programmable diagnostic logic and dynamic expressions.
- Runtime Component Discovery - Enables finding loaded classes and methods in the JVM using wildcards or regular expressions.
- Diagnostic Scripts - Enables the execution of JavaScript scripts to implement scenario-specific diagnostic logic.
- Dynamic Expression Evaluators - Implements an engine to evaluate scriptable expressions for inspecting detailed attributes of runtime objects.
- Diagnostic Command Interfaces - Provides a command-line interface for executing pre-defined troubleshooting commands to analyze remote systems.
- Trace Recording - Captures and serializes the sequence of method calls and arguments for retrospective analysis.
- Java Runtime Monitors - Tracks real-time performance metrics, call volumes, and response times for specific methods within the JVM.
- Method Call Chain Analysis - Renders the call chain of a method and calculates the time spent at each node in the sequence.
- Method Performance Metrics - Tracks quantitative execution data, including call volume and response times, for specified Java methods.
- Runtime Environment Inspection - Provides utilities to retrieve basic runtime information and details about loaded classes and methods.
