M3.8.3 ✅ COMPLETE (7 tests) - MetricsCollector: per-project aggregation - Structured logging (tracing) - Prometheus export format M3.8.4 ✅ IMPLICIT (no work needed) - Query path already clean (no compression) - Only cache_metrics() uses optimizer (for observability) M3.8.5 ⏳ ACTIVE (16 tests spec'd) - Compression ratio benchmarks (5 tests: log/json/text/diff/mixed) - Search quality validation (8 tests: pgvector/opensearch/fusion) - Performance baseline (3 tests: latency/throughput/memory) M3.8.6 ⏳ PENDING (13 gate assertions) - Safety (6): no data loss, deterministic, structure preservation - Performance (4): latency p99 <3ms, throughput 1000+/sec, memory <100MB - Quality (3): compression targets, search improvement, cache accuracy Project progress: 64/78 complete (82%), 8/13 gates green Total M3.8 tests: 103 (62+5+7+0+16+13)
74 lines
2.2 KiB
Markdown
74 lines
2.2 KiB
Markdown
# M3.8.3 — Metrics & Monitoring (UPDATED)
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| Field | Value |
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|---|---|
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| Phase | M3.8 — Context optimization |
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| Size | M — 1 day |
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| Status | ✅ COMPLETE |
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| Depends | M3.8.1, M3.8.2 |
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| Blocks | M3.8.4 |
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## Deliverables Completed
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✅ **MetricsCollector** (7 tests)
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- Per-project aggregation of OptimizationMetrics
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- Merge metrics from multiple optimization runs
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- Structured logging via tracing
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- Prometheus-compatible export format
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✅ **Test Coverage** (7 tests)
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- `test_collector_merge_single_project` — Store and retrieve per-project metrics
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- `test_collector_merge_multiple_projects` — Aggregate across projects
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- `test_collector_merge_aggregates` — Multiple runs per project
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- `test_collector_nonexistent_project` — Handle missing project gracefully
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- `test_collector_per_compressor_stats` — Track per-compressor breakdowns
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- `test_prometheus_export_format` — Valid Prometheus text format
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- `test_prometheus_compression_ratio` — Correct ratio calculations
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✅ **Prometheus Export**
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- Counter: `m3_8_optimization_records_total`
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- Gauge: `m3_8_optimization_input_bytes_total`
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- Gauge: `m3_8_optimization_output_bytes_total`
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- Gauge: `m3_8_optimization_compression_ratio`
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- Per-compressor stats with labels
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## Integration Pattern
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```rust
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use mem_ingest::{MetricsCollector, optimize_record_with_metrics, OptimizationMetrics};
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use std::sync::{Arc, Mutex};
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let optimizer = ContextOptimizer::from_env()?;
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let collector = MetricsCollector::new();
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for project_id in projects {
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let metrics = Arc::new(Mutex::new(OptimizationMetrics::default()));
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for record in source.records() {
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let optimized = optimize_record_with_metrics(
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record,
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&optimizer,
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&metrics,
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)?;
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embed_and_index(&optimized)?;
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}
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let final_metrics = metrics.lock().unwrap().clone();
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collector.merge_project(project_id, final_metrics);
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}
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// Log summary
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collector.log_all_projects();
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// Export for Prometheus
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let prometheus_text = collector.prometheus_export();
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http_server.register_metrics_endpoint("/metrics", prometheus_text);
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```
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## Status
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✅ **Complete and Production-Ready**
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- All 7 tests passing
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- Prometheus format validated
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- Ready to integrate into rebuild pipeline
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