0e5a514015
Add Week 5-7 plans with Oracle review fixes
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Week 5 (CDC & Delta Detection):
- Add read_full() method to avoid u32 overflow on >4GB files
- Add chunk_streaming() to avoid 200MB+ memory per file
- Implement scan_origin() recursive walk (was stub)
- Use spawn_blocking for watcher instead of separate runtime
- Add 200ms event debouncing
- Add >90% bandwidth reduction test
Week 6 (Origin Federation):
- Define all-origins-unhealthy behavior (least-bad selection)
- Track watch handles for cleanup on unregister
- Clarify tuple-based priority routing
- Add per-origin-type health thresholds
- Align retry delays with NFR-7.3 spec (100ms, 500ms, 2000ms)
Week 7 (Remote Origins):
- Replace SFTP single mutex with connection pool
- Add 30s timeout to all remote operations
- Custom Debug impl to redact credentials
- SSH host verification against known_hosts
- Clamp S3 range requests to file size
- Use head_bucket for S3 health checks
2026-05-12 19:48:40 +02:00
7ad554f8d5
Add CLI implementation and MVP performance review
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- Implement functional CLI with clap argument parsing
- Add directory scanning and metadata extraction at startup
- Fix filesystem.rs to store tokio Handle for async/sync bridge
- Fix flake.nix with LD_LIBRARY_PATH for libfuse3
- Add MVP performance review with real-world benchmark results
Benchmarks show:
- Mount time: 8ms (target <500ms)
- Throughput: 2-3 GB/s (target >500 MB/s)
- Identifies critical gap: incomplete file caching (only ~2MB per file)
- Identifies missing CDC chunking per architecture spec
2026-05-12 19:28:13 +02:00
e575276b6f
Add Week 4b plan: Origin-CAS connector for cache-miss handling
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- Create week-04b-origin-connector.md with ContentFetcher design
- Update development-plan.md: Phase 1 now includes Week 4b
- Update architecture.md: Phase 1 table includes Week 4b
- Plan includes EventBus integration per FR-18.1 (Oracle-verified)
2026-05-12 18:55:58 +02:00
ffbb238633
Implement Week 4 CAS store with chunk deduplication and LRU eviction
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- Add musicfs-cas crate: CasStore, ChunkHash, FileReader, ChunkManifest
- Add LruEviction policy to musicfs-cache for cache size management
- Integrate FileReader into FUSE filesystem for actual file reads
- Use xxHash64 for content hashing, sled for index, msgpack serialization
- Default cache path: ~/.cache/musicfs/chunks/ with 256 subdirs sharding
- 20 new tests (14 CAS unit + 3 integration + 3 eviction), 54 total
2026-05-12 18:43:39 +02:00
e08988f7f3
Add development plan and Oracle-validated weekly plans (Weeks 1-3)
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development-plan.md (master plan):
- 11-week implementation broken into 4 phases
- 11 Rust crates with dependency graph
- Per-week deliverables, tests, exit criteria
- Deferred requirements (FR-21, FR-22) with rationale
plans/week-01-foundation.md:
- Workspace setup, core types, FUSE skeleton, local origin
- Origin trait with watch() method (arch 4.3.4)
- EventBus with FileAccessed event (FR-18.1)
- All EROFS handlers for read-only enforcement (FR-4.1-4.5)
plans/week-02-metadata.md:
- symphonia metadata extraction (FR-6.1-6.5)
- SQLite schema matching architecture 4.3.6 exactly
- Column names: track/disc (not track_number/disc_number)
- Hash columns as TEXT (hex-encoded, not BLOB)
- Added idx_files_real index (FR-7.3)
plans/week-03-virtual-tree.md:
- Path resolver with $var syntax (arch 4.3.1)
- Template vars: $artist, $album, $title, $track, $year, $disc, $genre, $format, $format_upper
- RefreshPolicy struct for FR-9.3 (TTL-based refresh)
- force_refresh() method for FR-9.4 (signal/API refresh)
All plans Oracle-validated against architecture.md and requirements.md
2026-05-12 17:52:33 +02:00
dac9f3dd02
Replace JSON-RPC with gRPC for Control API
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Update Control API specification to use gRPC over Unix socket instead of
JSON-RPC 2.0. gRPC provides better type safety, native streaming for events,
and auto-generated clients for multi-language integration.
architecture.md:
- Add decision rationale table (JSON-RPC vs gRPC comparison)
- Add full .proto definitions (~200 lines) for musicfs.v1 package
- Define MusicFS service with 9 RPC methods:
- Daemon: GetStatus, Shutdown
- Cache: GetCacheStats, ClearCache, Prefetch (streaming)
- Origins: ListOrigins, GetOriginHealth, RescanOrigin (streaming)
- Search: Search, SearchStream
- Events: SubscribeEvents (server-streaming)
- Add grpcurl debugging examples
requirements.md:
- FR-17.1: Clarify Unix socket uses gRPC
- FR-17.2: Upgrade from SHOULD to SHALL for gRPC requirement
2026-05-12 16:51:35 +02:00
1374084135
Reorganize docs into v1 (beetfs) and v2 (new architecture)
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docs/v1/ - Original beetfs documentation:
- analysis.md, components.md, data-flow.md, drawbacks.md
- features.md, modernization.md, rust-migration.md
- benchmark-plan.md, benchmark-results.md, e2e-test-plan.md
- README.md
docs/v2/ - New MusicFS architecture:
- requirements.md: Full requirements spec (FR-1 to FR-25, NFR-1 to NFR-14)
- P0: Multi-origin, plugins, CAS, control API
- P1: Search, album art, prefetch, metadata sources
- P3: HA, 10M+ files scalability
- architecture.md: Google BlueDoc style design document
- PlantUML diagrams for all components
- Design requirements with quantitative targets
- Alternatives considered, implementation plan
2026-05-12 16:46:37 +02:00
3a6115cbab
Add benchmark suite and results
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Benchmark harness (benchmarks/run_benchmarks.py):
- Mount time, readdir, stat latency, file open/read, memory usage
- ENOENT lookup (missing file) benchmark per Oracle review
- Uses synthetic FLAC files from test infrastructure
Results: ALL BENCHMARKS BLOCKED BY BUGS
- Bug #2 (directory tree building) crashes mount with any content
- FSNode.adddir() assumes parent dirs exist, fails with KeyError
- Bug #1 (nested methods) would block FUSE ops even if mount worked
beetfs is non-functional for real-world use until both bugs fixed.
2026-05-12 14:44:02 +02:00
dacd3a7c1f
Add benchmark plan for beetfs performance measurement
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Covers:
- Mount time scaling (100 to 100K items)
- Metadata operations (stat, readdir throughput)
- File I/O (open latency, read throughput)
- Memory usage (idle, per-file, leak detection)
- Concurrent access (GIL impact)
- Realistic workloads (library scan, album playback)
Tools: fio, mdtest, hyperfine
Baselines: ext4, fuse-passthrough, sshfs
Key bottlenecks identified:
- FileHandler loads entire file into RAM on open
- Mount-time bulk load of all library items
- Python GIL limits parallelism
2026-05-12 14:36:24 +02:00
f8666ae8c6
Document test findings and fix mount script
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Test Results (74 tests):
- 12 passed, 56 failures, 3 errors, 3 skipped
Bugs Detected:
1. Nested methods bug: lines 758-1144 indented inside access()
- FUSE operations (readdir, open, read, write) unreachable
- os.listdir() returns ENOSYS (Function not implemented)
2. Directory tree building: KeyError in FSNode.getnode()
- Mount fails when library contains tracks
3. Unmount not clean: filesystem not releasing properly
Changes:
- Fix conftest.py: inline sanitization (no module-level sanitize fn)
- Add test findings to e2e-test-plan.md
- Add .gitignore for .pyc and test artifacts
2026-05-12 14:29:05 +02:00
81df4790bf
Add e2e test suite for beetfs
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Tests use real FUSE operations against mounted beetfs filesystem:
- test_smoke: mount/unmount lifecycle
- test_nested_bug: detects critical indentation bug (13 failures)
- test_readdir: directory listing
- test_read: metadata overlay verification
- test_stat: file/directory attributes
- test_write: metadata modification
- test_error_handling: ENOENT, EOPNOTSUPP
Also includes:
- conftest.py with BeetFSTestCase base class and synthetic FLAC generator
- e2e-test-plan.md with Oracle-reviewed test strategy
- flake.nix updated with ffmpeg/flac for test fixtures
Run: cd tests && nix develop ../ --command python -m unittest discover
2026-05-12 14:02:55 +02:00
f0a83df190
Add reverse-engineered documentation
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- README.md: Overview, core concept diagram, component summary
- architecture.md: System design, initialization flow, memory model
- components.md: Deep dive on all classes and functions
- data-flow.md: Complete read/write operation flows with diagrams
- analysis.md: Performance analysis (latency, memory footprint, I/O)
- drawbacks.md: 27 identified issues and limitations catalog
- modernization.md: Python 3 migration guide with effort estimates
2026-05-12 11:52:48 +02:00
Alexander