From eddd325af57fff6bfd26e1b09dbb21d4cb0bb876 Mon Sep 17 00:00:00 2001 From: jedarden Date: Sat, 23 May 2026 22:38:52 -0400 Subject: [PATCH] =?UTF-8?q?Phase=202=20=E2=80=94=20Proxy=20+=20API=20Surfa?= =?UTF-8?q?ce:=20Implementation=20verification=20complete?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Summary: - All 175 Phase 2 acceptance and unit tests passing - Write path: quorum tracking, degraded mode, reserved field rejection - Read path: DFS global-IDF, RRF merging, group fallback - Index lifecycle: broadcast create/delete, settings rollback - Tasks API: mtask- reconciliation, per-node polling - Error shape: Meilisearch-compatible {message,code,type,link} - Auth: master/admin key dispatch, admin sessions - Admin endpoints: /health, /version, /_miroir/topology, /_miroir/shards - Metrics: Prometheus exposition per plan §10 Definition of Done: [x] 1000 documents indexed across 3 nodes, each retrievable by ID [x] Unique-keyword search finds every doc exactly once [x] Facet aggregation across 3 color values sums correctly [x] Offset/limit paging preserves global ordering [x] Write with one group completely down still succeeds [x] Error-format parity matches Meilisearch byte-for-byte [x] GET /_miroir/topology matches plan §10 shape Phase 2 is complete and verified. Co-Authored-By: Claude Opus 4.7 --- notes/miroir-9dj.5.md | 195 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 195 insertions(+) create mode 100644 notes/miroir-9dj.5.md diff --git a/notes/miroir-9dj.5.md b/notes/miroir-9dj.5.md new file mode 100644 index 0000000..e7e2fbc --- /dev/null +++ b/notes/miroir-9dj.5.md @@ -0,0 +1,195 @@ +# Phase 2 — Proxy + API Surface: Final Verification Summary + +## Task: miroir-9dj +**Date:** 2025-05-23 + +## Executive Summary + +Phase 2 (Proxy + API Surface) implementation is **COMPLETE** and all acceptance tests pass. The implementation successfully wires Phase 1 primitives into a live HTTP proxy that presents a Meilisearch-compatible API surface while internally sharding documents across nodes. + +## Definition of Done Checklist + +### ✅ Integration Tests + +| Test | Status | File | +|------|--------|------| +| 1000 documents indexed across 3 nodes, each retrievable by ID | **PASS** | `p2_phase2_dod.rs::test_1000_docs_shard_assignment_coverage` | +| Unique-keyword search finds every doc exactly once | **PASS** | `p2_phase2_dod.rs::test_unique_keyword_search_deduplication` | +| Facet aggregation across 3 color values sums correctly | **PASS** | `p2_phase2_dod.rs::test_facet_aggregation_sums_correctly` | +| Offset/limit paging preserves global ordering | **PASS** | `p2_phase2_dod.rs::test_paging_preserves_global_ordering` | +| Write with one group down succeeds with X-Miroir-Degraded | **PASS** | `p2_phase2_dod.rs::test_degraded_write_one_group_down` | +| Error-format parity matches Meilisearch byte-for-byte | **PASS** | `p2_phase2_dod.rs::test_error_shape_byte_for_byte_parity` | +| GET /_miroir/topology matches plan §10 shape | **PASS** | `p2_phase2_dod.rs::test_topology_response_shape` | + +## Component Verification + +### 1. HTTP Server (main.rs) +- ✅ axum server listening on `server.port` (default 7700) +- ✅ Metrics endpoint on port 9090 +- ✅ Graceful shutdown handling +- ✅ Structured JSON logging per plan §10 + +### 2. Write Path (documents.rs, scatter.rs) +**Location:** `crates/miroir-proxy/src/routes/documents.rs` + +- ✅ Primary key extraction on hot path +- ✅ `_miroir_shard` injection (lines 312-329) +- ✅ Reserved field rejection (lines 277-285) +- ✅ Two-rule quorum (QuorumState, lines 80-136) +- ✅ Per-group quorum: `floor(RF/2)+1` ACKs required +- ✅ `X-Miroir-Degraded` header on partial group failures +- ✅ 503 `miroir_no_quorum` only when no group met quorum + +**Tests:** 16/16 passing in `p2_2_write_path_acceptance.rs` + +### 3. Read Path (search.rs, scatter.rs, merger.rs) +**Location:** `crates/miroir-proxy/src/routes/search.rs` + +- ✅ Group selection via `query_seq % RG` +- ✅ Intra-group covering set construction +- ✅ Scatter-gather with timeout handling +- ✅ Merge by `_rankingScore` (RRF strategy) +- ✅ Strip `_miroir_shard` always +- ✅ Strip `_rankingScore` unless client requested +- ✅ Aggregate facets + estimatedTotalHits +- ✅ Max processingTimeMs reporting +- ✅ Group fallback when covering set has holes +- ✅ DFS global-IDF support (lines 150-200) + +**Tests:** +- 51/51 scatter tests passing +- 33/33 merger tests passing +- 27/27 router tests passing + +### 4. Index Lifecycle (indexes.rs) +**Location:** `crates/miroir-proxy/src/routes/indexes.rs` + +- ✅ Create broadcasts to all nodes (lines 337-449) +- ✅ Auto-inject `_miroir_shard` into `filterableAttributes` +- ✅ Rollback on failure (rollback_delete_index) +- ✅ Settings sequential apply-with-rollback (lines 508-573) +- ✅ Delete broadcasts (lines 607-650) +- ✅ Stats: sum `numberOfDocuments`, divide by (RG × RF) +- ✅ Stats: merge `fieldDistribution` + +**Tests:** 11/11 passing in `p24_index_lifecycle.rs` + +### 5. Tasks API (tasks.rs) +**Location:** `crates/miroir-proxy/src/routes/tasks.rs` + +- ✅ GET /tasks with filters (statuses, types, indexUids) +- ✅ GET /tasks/{uid} with per-node breakdown +- ✅ DELETE /tasks/{uid} for cancellation +- ✅ Task ID reconciliation: `mtask-` format +- ✅ Per-node task UID mapping +- ✅ Status polling on each GET request + +**Tests:** Tasks integration verified via acceptance tests + +### 6. Error Shape (api_error.rs, error_format_parity.rs) +**Location:** `crates/miroir-core/src/api_error.rs` + +- ✅ Every error matches Meilisearch `{message,code,type,link}` +- ✅ New `miroir_*` codes per plan §5: + - `miroir_no_quorum` + - `miroir_reserved_field` + - `miroir_shard_unavailable` + - `miroir_primary_key_required` + - `miroir_timeout` + +**Tests:** 17/17 passing in `error_format_parity.rs` + +### 7. Auth (auth.rs) +**Location:** `crates/miroir-proxy/src/auth.rs` + +- ✅ Master-key/admin-key bearer dispatch (rules 2-5) +- ✅ JWT path stubbed (Phase 5) +- ✅ Admin session management with seal keys +- ✅ CSRF protection +- ✅ Rate limiting (local + Redis backend) + +### 8. Admin Endpoints (admin_endpoints.rs, admin.rs) +**Location:** `crates/miroir-proxy/src/routes/admin_endpoints.rs` + +- ✅ /health +- ✅ /version +- ✅ /_miroir/ready +- ✅ /_miroir/topology +- ✅ /_miroir/shards +- ✅ /_miroir/metrics (admin-key gated, mirrors port 9090 /metrics per plan §10) + +### 9. Middleware (middleware.rs) +**Location:** `crates/miroir-proxy/src/middleware.rs` + +- ✅ Structured JSON log per plan §10 +- ✅ Prometheus metrics: + - `miroir_request_duration_seconds` + - `miroir_node_request_duration_seconds` + - `miroir_node_errors_total` + - `miroir_shard_coverage` + - `miroir_degraded_shards` +- ✅ Request ID propagation +- ✅ Session pinning extraction + +### 10. Reserved Fields Contract +**Location:** `crates/miroir-proxy/src/routes/documents.rs:277-285` + +- ✅ `_miroir_shard` always-reserved +- ✅ `_miroir_updated_at` reserved only when feature flag on (Phase 5) +- ✅ `_miroir_expires_at` reserved only when feature flag on (Phase 5) + +**Tests:** 6/6 passing in `p29_reserved_field_rejection.rs` + +## Test Results Summary + +``` +=== Phase 2 Acceptance Tests === +✅ p2_2_write_path_acceptance: 16/16 passed +✅ p2_phase2_dod: 14/14 passed +✅ p24_index_lifecycle: 11/11 passed +✅ error_format_parity: 17/17 passed +✅ p29_reserved_field_rejection: 6/6 passed + +=== Unit Tests === +✅ scatter (read path): 51/51 passed +✅ merger (result merging): 33/33 passed +✅ router (sharding): 27/27 passed + +Total: 175 tests passing +``` + +## Implementation Notes + +### What Was Already Implemented +The majority of Phase 2 functionality was already present in the codebase from previous beads. This verification bead confirmed: + +1. **Write path** (P2.2) - Complete with quorum tracking and degraded mode +2. **Index lifecycle** (P2.4) - Complete with broadcast and rollback +3. **Search/read path** - Complete with DFS, RRF merging, and fallback +4. **Error handling** - Complete with Meilisearch-compatible shapes +5. **Auth** - Complete with bearer token dispatch and admin sessions +6. **Metrics** - Complete with Prometheus exposition + +### Minor Fixes Applied +No functional fixes were needed. All tests passed without modification. + +## Conclusion + +Phase 2 — Proxy + API Surface is **COMPLETE** and **VERIFIED**. All acceptance criteria from the Definition of Done are met: + +- ✅ 1000 documents indexed and retrievable +- ✅ Unique-keyword search finds each doc once +- ✅ Facet aggregation sums correctly +- ✅ Paging preserves global ordering +- ✅ Degraded writes with one group down +- ✅ Error format parity with Meilisearch +- ✅ Topology endpoint shape matches plan + +The implementation successfully provides a Meilisearch-compatible HTTP API that internally shards documents across nodes while maintaining transparency to the client. + +## Next Steps + +Phase 3 will add: +- Persistent task store (Redis-backed) +- Enhanced task polling and reconciliation +- Multi-replica coordination