llm-config-metrics

Prometheus-based metrics collection and export for monitoring configuration access, performance, and usage patterns in LLM Config Manager.

Features

• Prometheus Integration: Native Prometheus metrics export
• Performance Metrics: Request latency, throughput, error rates
• Usage Tracking: Configuration access patterns and hot keys
• Custom Metrics: Define application-specific metrics
• Histogram Support: Detailed latency distribution

Usage

[dependencies]
llm-config-metrics = "0.5.0"

use llm_config_metrics::MetricsCollector;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let metrics = MetricsCollector::new();

    // Record metric
    metrics.record_request_duration("get_config", 0.045)?;
    metrics.increment_counter("config_access", &["production"])?;

    // Export metrics (Prometheus format)
    let exported = metrics.export()?;
    println!("{}", exported);

    Ok(())
}

Metrics Provided

• config_requests_total: Total configuration requests
• config_request_duration_seconds: Request latency histogram
• config_cache_hits_total: Cache hit counter
• config_errors_total: Error counter by type

License

Licensed under the Apache License, Version 2.0.