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fix(scanner): fence timed out scan cycles (#6352)

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* fix(scanner): fence timed out scan cycles

* fix(scanner): cancel scan workers with cycle scope

* fix(scanner): reject persisted timer overflow

* fix(scanner): reject terminal leadership epochs

* fix(scanner): reject trailing cycle state bytes
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cxymds
2026-08-22 22:38:18 +08:00
committed by GitHub
parent 9815694301
commit 2fccfdeabe
15 changed files with 803 additions and 79 deletions
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crates/config/README.md
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@@ -84,6 +84,12 @@ Current guidance:
- `RUSTFS_SCANNER_CYCLE_MAX_OBJECTS` (canonical)
- `RUSTFS_SCANNER_CYCLE_MAX_DIRECTORIES` (canonical)
Scanner cycle budget controls:
- When `RUSTFS_SCANNER_CYCLE_MAX_DURATION_SECS` is unset, the finite default is 1800 seconds (30 minutes), matching the scanner benchmark guidance.
- An explicit `0` preserves the compatibility behavior of an unbounded runtime budget. Object and directory budgets likewise remain unbounded when explicitly set to `0`.
- A timed-out cycle cancels cooperative scanner work, then fences its leader epoch before releasing the lease. An uncooperative I/O operation is dropped after the bounded shutdown window; its cursor is not claimed to be durable and the scanner reports `recovery-required` when the worker cannot stop cooperatively, the cycle state was not confirmed durable, or epoch fencing cannot be persisted.
## Mmap read environment aliases
- `RUSTFS_OBJECT_MMAP_READ_ENABLE` (canonical)