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

This commit is contained in:

Alexander

2026-05-13 15:55:22 +02:00

parent 3038c94b8c

commit 0ff2a17ab7

11 changed files with 325 additions and 39 deletions

									
										musicfs/crates/musicfs-cli/Cargo.toml
									
		+1
		
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				@@ -24,6 +24,7 @@ tracing-appender.workspace = true

				anyhow.workspace = true

				dirs.workspace = true

				parking_lot.workspace = true

				libc.workspace = true

				[target.'cfg(target_os = "linux")'.dependencies]

				tracing-journald.workspace = true