Alexander
0ff2a17ab7
Implement Phase C: Production Hardening
Implements phase-c-hardening.md to fix 6 RED resilience tests:
- D1/D2: Health check timeout (1.5s) + parallel execution via join_all
- C6: Recursive CAS calculate_size() to scan shard subdirectories
- C7: FUSE read timeout (30s) returns EIO instead of hanging
- 6.4: Auto-re-fetch corrupt/missing chunks from origin
- 6.6: Passthrough mode - continue even when CAS write fails
- C9: PID file with flock prevents concurrent mounts
- 5.3: fd exhaustion handling test
All 27 resilience tests now pass. Full test suite green.
Files changed:
- musicfs-origins/src/health.rs: timeout + join_all
- musicfs-origins/Cargo.toml: add futures dependency
- musicfs-cas/src/store.rs: recursive calculate_size
- musicfs-cas/src/reader.rs: auto-re-fetch on IntegrityError/NotFound
- musicfs-cas/src/fetcher.rs: passthrough fallback
- musicfs-fuse/src/filesystem.rs: 30s read timeout
- musicfs-cli/src/main.rs: PID file with flock
- musicfs-test-utils/tests/resilience.rs: updated tests
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