stemedb/uat/production-readiness/results/2026-02-05-wal-sync-fix.md
jordan 157dbbb9eb feat: Complete Aphoria Phase 8-9 + UAT suite (90/90 tests passing)
## Phase 8: Enterprise Extractor Improvements 
- 14 security extractors (TLS, JWT, SQL injection, XSS, etc.)
- 10 framework-specific extractors (Spring, Django, Rails, etc.)
- Config file security detection (YAML, TOML)

## Phase 9: Autonomous Extractor Generation 
- Shadow mode executor with TP/FP tracking
- Graduation pipeline with confidence thresholds
- Auto-rollback on regression detection
- Cross-project pattern syncing

## UAT Suite Complete (14 scripts, 90 tests)
- test-core-detection.sh (6 tests)
- test-declarative-extractors.sh (5 tests)
- test-domain-frameworks.sh (5 tests)
- test-domain-unreal.sh (3 tests)
- test-llm-extraction.sh (6 tests)
- test-eval-harness.sh (5 tests)
- test-cross-language.sh (3 tests)
- test-precommit-performance.sh (4 tests)
- test-output-formats.sh (8 tests)
- test-drift-detection.sh (6 tests)
- test-exit-codes.sh (12 tests)
+ 3 more scripts

## Other Changes
- Updated roadmap to mark Phase 8-9 complete
- Added .gitignore entries for build artifacts
- Updated pre-commit: 800 line limit, exclude tests/data/cmd

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2026-02-06 22:50:55 -07:00

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Markdown

# UAT Report: WAL Segment Synchronization Fix
**Date:** 2026-02-05
**Phase/Feature:** WAL/IngestWorker synchronization
**Tester:** Claude Code
**Status:** PASS
## Summary
Fixed WAL segment size cache bug causing IngestWorker to fail reading newly-written records. All 180+ core tests now pass, and end-to-end pipeline verified working.
## Scope
What was tested:
- WAL append and read operations
- IngestWorker record processing
- v1 and v2 signature verification
- End-to-end ingestion pipeline (pharma-ingest)
- Skeptic lens conflict analysis
What was NOT tested:
- Load testing (sustained throughput)
- Crash recovery under load
- Distributed cluster scenarios
## Environment
- Rust version: stable (1.x)
- OS: macOS Darwin 23.6.0
- Commit: Working tree (uncommitted fix)
## Test Results
### WAL Tests (stemedb-wal)
| Test | Expected | Actual | Status |
|------|----------|--------|--------|
| test_read_across_segments | Records readable after append | Records readable | PASS |
| All 40 WAL tests | Pass | 40/40 pass | PASS |
### Ingest Tests (stemedb-ingest)
| Test | Expected | Actual | Status |
|------|----------|--------|--------|
| test_ingest_assertion | Process assertion from WAL | Processed successfully | PASS |
| test_ingest_vote | Process vote from WAL | Processed successfully | PASS |
| test_crash_recovery_* | Survive crash, no data loss | All recovery tests pass | PASS |
| test_rejects_invalid_signature | Reject tampered assertion | Rejected correctly | PASS |
| All 41 ingest tests | Pass | 41/41 pass | PASS |
### End-to-End Pipeline
| Test | Expected | Actual | Status |
|------|----------|--------|--------|
| API server startup | Binds to :18180 | Started successfully | PASS |
| pharma-ingest | 11 assertions, 0 errors | 11/11 ingested | PASS |
| /v1/health | assertions_count > 0 | assertions_count: 38 | PASS |
| /v1/query?subject=Semaglutide | Returns assertions | 28 assertions | PASS |
| /v1/skeptic | Returns conflict analysis | conflict_score: 0.995 | PASS |
## Issues Found
### WAL Segment Size Cache Stale
**Severity:** Critical
**Status:** Fixed
**Description:** `Journal::append()` updated `current_offset` but not the `SegmentManager`'s cached segment `size`. When `Journal::read()` tried to read, it used the stale cached size (8 bytes = header only) and rejected reads as "beyond segment size".
**Root Cause:** `SegmentManager` only updated segment sizes in `open()` and `refresh()`, not after writes.
**Fix Applied:**
1. Added `update_current_segment_size()` method to `SegmentManager`
2. Called it from `Journal::append()` after each write
## Fixes Applied
- `crates/stemedb-wal/src/segment.rs`: Added `update_current_segment_size()` method
- `crates/stemedb-wal/src/journal.rs`: Call `update_current_segment_size()` after `guard.write()`
## Artifacts
Test output:
```
stemedb-core: 99/99 pass
stemedb-ingest: 41/41 pass
stemedb-wal: 40/40 pass
Full workspace: 532/534 pass (2 pre-existing failures in aphoria TLS tests)
```
Skeptic query result (Semaglutide nausea_rate):
```json
{
"status": "Contested",
"conflict_score": 0.99540675,
"claims": [
{"value": {"type": "Number", "value": 0.25}, "weight_share": 0.54},
{"value": {"type": "Number", "value": 0.38}, "weight_share": 0.46}
]
}
```
## Recommendations
1. **Add load testing** - Verify sustained write throughput
2. **Fix aphoria TLS tests** - 2 pre-existing failures in `extractors::tls_version::tests`
3. **Document backup/restore** - WAL archival and recovery procedures
4. **Add API authentication** - Currently no auth on endpoints
## Sign-Off
- [x] All critical tests pass
- [x] No blocking issues remain
- [ ] Documentation updated (this report)
- [ ] Ready for release (pending load testing)