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CLI Debugging Tools

Comprehensive debugging and troubleshooting tools for the Nerve Framework.

Overview

The Nerve Framework provides extensive debugging capabilities through its command-line interface, enabling developers to diagnose issues, trace execution, and analyze system behavior.

Debugging Commands

System Diagnostics

# Run comprehensive system diagnostics
nerve-cli debug --diagnose

# Diagnose specific components
nerve-cli debug --diagnose memory
nerve-cli debug --diagnose communication
nerve-cli debug --diagnose threads
nerve-cli debug --diagnose nodes

# Generate diagnostic report
nerve-cli debug --report

Component Debugging

# Debug memory system
nerve-cli debug --memory

# Debug communication system
nerve-cli debug --communication

# Debug thread system
nerve-cli debug --threads

# Debug node registry
nerve-cli debug --nodes

Trace and Log Analysis

# Enable detailed tracing
nerve-cli debug --trace

# Trace specific operations
nerve-cli debug --trace publish
nerve-cli debug --trace subscribe
nerve-cli debug --trace route

# Analyze trace logs
nerve-cli debug --analyze-traces

Advanced Debugging Features

Memory Debugging

# Check for memory leaks
nerve-cli debug --memory-leaks

# Analyze memory usage patterns
nerve-cli debug --memory-analysis

# Dump memory state
nerve-cli debug --memory-dump

# Check buffer integrity
nerve-cli debug --buffer-check

Communication Debugging

# Debug message routing
nerve-cli debug --message-routing

# Check connection states
nerve-cli debug --connections

# Debug protocol handling
nerve-cli debug --protocols

# Test message delivery
nerve-cli debug --message-test

Thread Debugging

# Debug thread deadlocks
nerve-cli debug --deadlocks

# Analyze thread states
nerve-cli debug --thread-states

# Check thread pool health
nerve-cli debug --thread-pool

# Debug async operations
nerve-cli debug --async

Interactive Debugging

Debug Console

# Launch interactive debug console
nerve-cli debug --console

# Console with specific context
nerve-cli debug --console --context memory
nerve-cli debug --console --context communication

# Console with breakpoints
nerve-cli debug --console --breakpoints

Live Debugging

# Attach debugger to running system
nerve-cli debug --attach

# Debug specific process
nerve-cli debug --attach --pid 1234

# Live debugging with breakpoints
nerve-cli debug --live

Performance Debugging

Performance Analysis

# Debug performance issues
nerve-cli debug --performance

# Analyze performance bottlenecks
nerve-cli debug --bottlenecks

# Debug slow operations
nerve-cli debug --slow-operations

# Performance profiling
nerve-cli debug --profile

Latency Debugging

# Debug message latency
nerve-cli debug --latency

# Trace latency sources
nerve-cli debug --latency-trace

# Analyze timing patterns
nerve-cli debug --timing

Error Analysis

Error Tracking

# Track and analyze errors
nerve-cli debug --errors

# Show error statistics
nerve-cli debug --error-stats

# Analyze error patterns
nerve-cli debug --error-patterns

# Debug specific error types
nerve-cli debug --error-type timeout

Exception Debugging

# Debug exceptions
nerve-cli debug --exceptions

# Analyze exception stack traces
nerve-cli debug --stack-traces

# Debug panic conditions
nerve-cli debug --panics

State Inspection

System State

# Inspect system state
nerve-cli debug --state

# Dump complete system state
nerve-cli debug --state-dump

# Compare system states
nerve-cli debug --state-compare

Component State

# Inspect memory state
nerve-cli debug --memory-state

# Inspect communication state
nerve-cli debug --communication-state

# Inspect thread state
nerve-cli debug --thread-state

# Inspect node state
nerve-cli debug --node-state

Configuration Debugging

Configuration Validation

# Validate configuration
nerve-cli debug --validate-config

# Check configuration conflicts
nerve-cli debug --config-conflicts

# Debug configuration loading
nerve-cli debug --config-load

Environment Debugging

# Debug environment setup
nerve-cli debug --environment

# Check system dependencies
nerve-cli debug --dependencies

# Debug resource allocation
nerve-cli debug --resources

Network Debugging

Connection Debugging

# Debug network connections
nerve-cli debug --network

# Check connection health
nerve-cli debug --connection-health

# Debug connection timeouts
nerve-cli debug --timeouts

Protocol Debugging

# Debug protocol implementation
nerve-cli debug --protocol-debug

# Analyze protocol messages
nerve-cli debug --protocol-messages

# Debug serialization/deserialization
nerve-cli debug --serialization

Testing and Validation

Test Debugging

# Debug test failures
nerve-cli debug --test-failures

# Run tests with debug output
nerve-cli debug --test-debug

# Debug specific test cases
nerve-cli debug --test-case "test_message_routing"

Integration Debugging

# Debug integration issues
nerve-cli debug --integration

# Debug component interactions
nerve-cli debug --interactions

# Debug system startup
nerve-cli debug --startup

Log Analysis Tools

Log Filtering

# Filter debug logs
nerve-cli debug --logs --filter debug

# Search logs for patterns
nerve-cli debug --logs --search "error"
nerve-cli debug --logs --search "timeout"

# Analyze log patterns
nerve-cli debug --log-analysis

Log Correlation

# Correlate logs with events
nerve-cli debug --log-correlation

# Trace execution through logs
nerve-cli debug --log-trace

# Analyze log timing
nerve-cli debug --log-timing

Advanced Debugging Techniques

Memory Analysis

# Heap analysis
nerve-cli debug --heap

# Garbage collection debugging
nerve-cli debug --gc

# Memory fragmentation analysis
nerve-cli debug --fragmentation

Concurrency Debugging

# Debug race conditions
nerve-cli debug --race-conditions

# Analyze lock contention
nerve-cli debug --lock-contention

# Debug deadlock detection
nerve-cli debug --deadlock-detection

Debugging Configuration

Debug Levels

# Set debug level
nerve-cli debug --level info
nerve-cli debug --level debug
nerve-cli debug --level trace

# Configure debug output
nerve-cli debug --output console
nerve-cli debug --output file
nerve-cli debug --output both

Debug Filters

# Filter debug output
nerve-cli debug --filter memory
nerve-cli debug --filter communication
nerve-cli debug --filter threads

# Custom debug filters
nerve-cli debug --custom-filter "message.*"

Troubleshooting Common Issues

Startup Issues

# Debug system startup
nerve-cli debug --startup-issues

# Check initialization order
nerve-cli debug --init-order

# Debug dependency resolution
nerve-cli debug --dependencies

Performance Issues

# Debug performance degradation
nerve-cli debug --performance-issues

# Analyze resource usage
nerve-cli debug --resource-usage

# Debug memory pressure
nerve-cli debug --memory-pressure

Communication Issues

# Debug message loss
nerve-cli debug --message-loss

# Debug connection drops
nerve-cli debug --connection-drops

# Debug routing issues
nerve-cli debug --routing-issues

Debugging Best Practices

Effective Debugging

  1. Start with Diagnostics: Use --diagnose for comprehensive system check
  2. Isolate Issues: Debug specific components before system-wide debugging
  3. Use Appropriate Levels: Set debug levels based on issue complexity
  4. Document Findings: Keep records of debugging sessions and solutions

Performance Considerations

  • Use debug mode sparingly in production
  • Configure appropriate log levels to avoid performance impact
  • Use targeted debugging rather than system-wide tracing
  • Monitor debug tool resource usage

Integration with Development Tools

IDE Integration

# Generate debug configuration for IDEs
nerve-cli debug --ide-config

# Export debug symbols
nerve-cli debug --export-symbols

# Create debug session files
nerve-cli debug --session-file

External Debuggers

# Prepare for external debugger attachment
nerve-cli debug --prepare-gdb
nerve-cli debug --prepare-lldb

# Generate core dumps
nerve-cli debug --core-dump