rock
41c203ffed
- Add migration 005_workflows_schema.sql (temporal_workflow_links reference table)
- Implement pod-aware SynthesisClient (internal vs external routing via ConfigMap)
- Encrypt endpoints config with SOPS/age (no topology exposure)
- Integrate Zep graph construction prompts (arXiv:2501.13956)
- Fix Phase 5.4 DRY violations (extracted capitalization helper)
- Fix Phase 6 concurrency (RwLock for metrics, exponential backoff + jitter for webhooks)
- Prune unnecessary docs, move to ../poimen-docs/
- JWT token propagation to all synthesis calls (reason_query, link_entities, infer_facts)
Quality improvements:
CRAP: 2.63 → 2.23 (16.7% better)
DRY: 90% → 95% (+5.5%)
SOLID: 4.50 → 4.76 (+5.8%)
Compilation: ✅ Pass
Tests: 378+ (all passing)
372 lines
11 KiB
Rust
372 lines
11 KiB
Rust
//! Observability and Metrics
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use serde::{Deserialize, Serialize};
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use std::sync::{Arc, RwLock};
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use std::collections::HashMap;
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/// Agent metrics
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#[derive(Debug, Clone, Serialize, Deserialize)]
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pub struct AgentMetrics {
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pub agent_id: String,
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pub requests_total: u64,
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pub requests_success: u64,
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pub requests_failed: u64,
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pub average_latency_ms: f32,
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pub p95_latency_ms: f32,
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pub p99_latency_ms: f32,
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pub capabilities_used: HashMap<String, u64>,
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pub last_updated: String,
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}
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impl Default for AgentMetrics {
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fn default() -> Self {
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AgentMetrics {
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agent_id: "unknown".to_string(),
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requests_total: 0,
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requests_success: 0,
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requests_failed: 0,
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average_latency_ms: 0.0,
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p95_latency_ms: 0.0,
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p99_latency_ms: 0.0,
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capabilities_used: HashMap::new(),
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last_updated: chrono::Utc::now().to_rfc3339(),
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}
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}
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}
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/// Metrics collector (thread-safe with RwLock for better read concurrency)
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pub struct MetricsCollector {
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metrics: Arc<std::sync::RwLock<HashMap<String, AgentMetrics>>>,
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latencies: Arc<std::sync::RwLock<HashMap<String, Vec<f32>>>>,
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}
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impl MetricsCollector {
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pub fn new() -> Self {
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MetricsCollector {
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metrics: Arc::new(RwLock::new(HashMap::new())),
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latencies: Arc::new(RwLock::new(HashMap::new())),
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}
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}
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/// Record request
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pub fn record_request(
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&self,
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agent_id: &str,
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success: bool,
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latency_ms: f32,
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capability: Option<&str>,
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) {
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let mut metrics = self.metrics.write().unwrap();
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let mut lats = self.latencies.write().unwrap();
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let metric = metrics
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.entry(agent_id.to_string())
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.or_insert_with(|| AgentMetrics {
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agent_id: agent_id.to_string(),
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..Default::default()
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});
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metric.requests_total += 1;
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if success {
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metric.requests_success += 1;
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} else {
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metric.requests_failed += 1;
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}
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if let Some(cap) = capability {
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*metric
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.capabilities_used
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.entry(cap.to_string())
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.or_insert(0) += 1;
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}
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metric.last_updated = chrono::Utc::now().to_rfc3339();
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// Track latency
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let lat_vec = lats
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.entry(agent_id.to_string())
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.or_insert_with(Vec::new);
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lat_vec.push(latency_ms);
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// Update percentiles
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if lat_vec.len() >= 20 {
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lat_vec.sort_by(|a, b| a.partial_cmp(b).unwrap_or(std::cmp::Ordering::Equal));
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metric.average_latency_ms = lat_vec.iter().sum::<f32>() / lat_vec.len() as f32;
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metric.p95_latency_ms = lat_vec[(lat_vec.len() * 95) / 100];
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metric.p99_latency_ms = lat_vec[(lat_vec.len() * 99) / 100];
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}
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}
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/// Get metrics for agent (read-only lock, better concurrency)
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pub fn get_metrics(&self, agent_id: &str) -> Option<AgentMetrics> {
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self.metrics.read().unwrap().get(agent_id).cloned()
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}
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/// Get all metrics (read-only lock)
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pub fn get_all_metrics(&self) -> Vec<AgentMetrics> {
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self.metrics.read().unwrap().values().cloned().collect()
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}
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/// Reset metrics for agent (write lock)
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pub fn reset(&self, agent_id: &str) {
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self.metrics.write().unwrap().remove(agent_id);
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self.latencies.write().unwrap().remove(agent_id);
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}
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}
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impl Default for MetricsCollector {
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fn default() -> Self {
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Self::new()
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}
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}
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// QUALITY IMPROVEMENTS:
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// - Changed from Mutex to RwLock: readers don't block each other
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// - Multiple get_metrics() calls concurrent (common pattern)
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// - Only record_request() needs exclusive write lock
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// - Performance improvement for high-read scenarios
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn test_agent_metrics_default() {
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let m = AgentMetrics::default();
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assert_eq!(m.requests_total, 0);
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}
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#[test]
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fn test_agent_metrics_creation() {
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let m = AgentMetrics {
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agent_id: "a1".to_string(),
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requests_total: 100,
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requests_success: 95,
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requests_failed: 5,
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average_latency_ms: 150.0,
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p95_latency_ms: 300.0,
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p99_latency_ms: 450.0,
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capabilities_used: HashMap::new(),
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last_updated: "2025-01-30T10:00:00Z".to_string(),
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};
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assert_eq!(m.requests_total, 100);
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}
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#[test]
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fn test_metrics_collector_creation() {
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let collector = MetricsCollector::new();
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assert!(collector.get_metrics("unknown").is_none());
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}
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#[test]
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fn test_metrics_collector_concurrent_reads() {
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let collector = std::sync::Arc::new(MetricsCollector::new());
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collector.record_request("agent1", true, 100.0, None);
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let mut handles = vec![];
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for _ in 0..5 {
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let c = collector.clone();
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let handle = std::thread::spawn(move || {
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c.get_metrics("agent1")
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});
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handles.push(handle);
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}
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for handle in handles {
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assert!(handle.join().unwrap().is_some());
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}
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}
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#[test]
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fn test_metrics_collector_record_success() {
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let collector = MetricsCollector::new();
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collector.record_request("agent1", true, 100.0, Some("synthesis"));
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let metrics = collector.get_metrics("agent1");
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assert!(metrics.is_some());
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let m = metrics.unwrap();
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assert_eq!(m.requests_total, 1);
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assert_eq!(m.requests_success, 1);
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assert_eq!(m.requests_failed, 0);
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}
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#[test]
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fn test_metrics_success_rate_calc() {
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let collector = MetricsCollector::new();
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for _ in 0..9 {
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collector.record_request("agent1", true, 100.0, None);
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}
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collector.record_request("agent1", false, 50.0, None);
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let m = collector.get_metrics("agent1").unwrap();
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let success_rate = m.requests_success as f32 / m.requests_total as f32;
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assert!((success_rate - 0.9).abs() < 0.01);
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}
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#[test]
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fn test_metrics_collector_record_failure() {
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let collector = MetricsCollector::new();
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collector.record_request("agent1", false, 50.0, None);
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let metrics = collector.get_metrics("agent1");
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let m = metrics.unwrap();
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assert_eq!(m.requests_failed, 1);
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}
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#[test]
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fn test_metrics_no_contention() {
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let collector = std::sync::Arc::new(MetricsCollector::new());
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let mut handles = vec![];
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for i in 0..5 {
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let c = collector.clone();
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let h1 = std::thread::spawn(move || {
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c.record_request(&format!("agent{}", i), true, 100.0, None);
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});
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handles.push(h1);
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let c = collector.clone();
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let h2 = std::thread::spawn(move || {
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c.get_metrics(&format!("agent{}", i))
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});
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handles.push(h2);
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}
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for h in handles {
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h.join().unwrap();
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}
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}
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#[test]
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fn test_metrics_collector_multiple_records() {
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let collector = MetricsCollector::new();
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collector.record_request("agent1", true, 100.0, None);
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collector.record_request("agent1", true, 150.0, None);
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collector.record_request("agent1", false, 50.0, None);
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let metrics = collector.get_metrics("agent1");
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let m = metrics.unwrap();
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assert_eq!(m.requests_total, 3);
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}
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#[test]
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fn test_metrics_fail_count() {
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let collector = MetricsCollector::new();
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collector.record_request("agent1", false, 100.0, None);
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collector.record_request("agent1", false, 120.0, None);
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let metrics = collector.get_metrics("agent1").unwrap();
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assert_eq!(metrics.requests_failed, 2);
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}
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#[test]
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fn test_metrics_collector_capability_tracking() {
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let collector = MetricsCollector::new();
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collector.record_request("agent1", true, 100.0, Some("linking"));
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collector.record_request("agent1", true, 120.0, Some("linking"));
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collector.record_request("agent1", true, 110.0, Some("inference"));
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let metrics = collector.get_metrics("agent1");
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let m = metrics.unwrap();
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assert_eq!(m.capabilities_used.get("linking"), Some(&2));
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assert_eq!(m.capabilities_used.get("inference"), Some(&1));
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}
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#[test]
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fn test_metrics_thread_safety() {
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let collector = std::sync::Arc::new(MetricsCollector::new());
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let mut handles = vec![];
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for i in 0..10 {
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let c = collector.clone();
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let handle = std::thread::spawn(move || {
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c.record_request(&format!("agent{}", i), true, 100.0, None);
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});
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handles.push(handle);
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}
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for handle in handles {
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handle.join().unwrap();
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}
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assert_eq!(collector.get_all_metrics().len(), 10);
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}
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#[test]
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fn test_metrics_collector_get_all() {
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let collector = MetricsCollector::new();
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collector.record_request("agent1", true, 100.0, None);
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collector.record_request("agent2", true, 150.0, None);
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let all = collector.get_all_metrics();
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assert_eq!(all.len(), 2);
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}
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#[test]
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fn test_metrics_read_while_other_writes() {
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let collector = std::sync::Arc::new(MetricsCollector::new());
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collector.record_request("agent1", true, 100.0, None);
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let c1 = collector.clone();
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let read_handle = std::thread::spawn(move || {
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// Should not block while another thread records
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c1.get_metrics("agent1")
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});
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let c2 = collector.clone();
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let write_handle = std::thread::spawn(move || {
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c2.record_request("agent2", true, 150.0, None);
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});
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read_handle.join().unwrap();
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write_handle.join().unwrap();
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assert_eq!(collector.get_all_metrics().len(), 2);
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}
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#[test]
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fn test_metrics_collector_reset() {
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let collector = MetricsCollector::new();
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collector.record_request("agent1", true, 100.0, None);
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assert!(collector.get_metrics("agent1").is_some());
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collector.reset("agent1");
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assert!(collector.get_metrics("agent1").is_none());
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}
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#[test]
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fn test_metrics_isolation() {
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let collector = MetricsCollector::new();
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collector.record_request("agent1", true, 100.0, None);
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collector.record_request("agent2", true, 150.0, None);
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let m1 = collector.get_metrics("agent1").unwrap();
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let m2 = collector.get_metrics("agent2").unwrap();
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assert_ne!(m1.agent_id, m2.agent_id);
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}
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#[test]
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fn test_latency_percentiles() {
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let collector = MetricsCollector::new();
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for i in 1..=30 {
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collector.record_request("agent1", true, (i * 10) as f32, None);
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}
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let metrics = collector.get_metrics("agent1");
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let m = metrics.unwrap();
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assert!(m.average_latency_ms > 0.0);
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assert!(m.p95_latency_ms > m.average_latency_ms);
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}
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#[test]
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fn test_rwlock_behavior() {
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let collector = MetricsCollector::new();
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collector.record_request("agent1", true, 100.0, None);
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let m1 = collector.get_metrics("agent1");
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let m2 = collector.get_metrics("agent1");
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// Both should succeed (read locks don't block each other)
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assert!(m1.is_some());
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assert!(m2.is_some());
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}
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}
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