mirror of
https://github.com/rustfs/rustfs.git
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Zhengchao An
f40abbb9f2
Add the shared design/contract document for backlog #1326: a single per-object generation authority (the #1312 fencing epoch) that spans commit fencing, read lease, prepared pool read, quota reservation, and old-dir GC. Pins the five cross-cutting constraints once - RPC signature binding with server-side nonce enforcement, xl.meta encoding contract (no meta_ver bump, no positional FileInfo field, internal metadata map under the dual-key contract), proto3 optional presence, mixed-version fallback direction, and cluster-level capability negotiation - so the implementation sub-issues follow them rather than each re-deciding. No product code changes.
64 lines
3.4 KiB
Markdown
64 lines
3.4 KiB
Markdown
# Architecture Documentation
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Durable architecture reference for RustFS: migration guardrails, runtime
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contracts, boundary rules, and support matrices.
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Two rules keep this directory healthy:
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1. **Durable reference only.** One-shot implementation plans, task trackers,
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and PR templates do not belong in the repository — keep them in the issue
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tracker or your local worktree. When their work closes, delete them rather
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than archiving them here.
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2. **No copies of other sources of truth.** Crate lists come from
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`Cargo.toml`, CI steps from `.github/workflows/ci.yml`, code structure from
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the code. `scripts/check_doc_paths.sh` fails the pre-commit gate when a
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doc here references a file path that no longer exists.
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## Start here
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- [overview.md](overview.md) — migration baseline, phase order, core principles
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## CI-enforced core (required by `scripts/check_architecture_migration_rules.sh`)
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- [crate-boundaries.md](crate-boundaries.md) — dependency direction, PR types, re-export contracts
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- [runtime-lifecycle.md](runtime-lifecycle.md) — startup/shutdown sequencing, readiness guarantees
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- [readiness-matrix.md](readiness-matrix.md) — request/dependency behavior, probe semantics
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- [storage-control-data-plane.md](storage-control-data-plane.md) — storage API contracts, control-plane boundaries
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- [global-state-crate-split-plan.md](global-state-crate-split-plan.md) — remaining global-state owners and split evaluation
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- [ecstore-module-split-plan.md](ecstore-module-split-plan.md) — ECStore decomposition rules and facade contracts
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## Contracts & invariants
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- [placement-repair-invariants.md](placement-repair-invariants.md)
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- [unified-object-generation.md](unified-object-generation.md) — single per-object generation authority (fencing epoch, transport/encoding/proto/mixed-version contracts)
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- [runtime-capability-contracts.md](runtime-capability-contracts.md)
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- [workload-admission-contracts.md](workload-admission-contracts.md)
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- [background-controller-contract.md](background-controller-contract.md)
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- [config-model-boundary-adr.md](config-model-boundary-adr.md)
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- [ecstore-layout-boundary.md](ecstore-layout-boundary.md)
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- [decommission-compatibility.md](decommission-compatibility.md)
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## Support matrices (release-facing, keep current)
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- [s3-compatibility-matrix.md](s3-compatibility-matrix.md)
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- [s3-tables-support-matrix.md](s3-tables-support-matrix.md)
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- [minio-rustfs-router-compatibility.md](minio-rustfs-router-compatibility.md)
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- [minio-file-format-compat.md](minio-file-format-compat.md)
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## Inventories & baselines (snapshots that feed migration work)
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- [global-state-inventory.md](global-state-inventory.md)
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- [ecstore-api-facade-inventory.md](ecstore-api-facade-inventory.md)
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- [ecstore-config-consumer-inventory.md](ecstore-config-consumer-inventory.md)
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- [obs-ecstore-dependency-inventory.md](obs-ecstore-dependency-inventory.md)
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- [background-services-inventory.md](background-services-inventory.md)
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- [admin-route-action-snapshot.md](admin-route-action-snapshot.md)
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- [compat-cleanup-register.md](compat-cleanup-register.md)
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Historical plans and trackers (rebalance/decommission phases,
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migration-progress ledger, and the one-shot migration snapshots that fed it —
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startup timeline, scheduler baseline, profiling/NUMA capability inventory, KMS
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development defaults inventory) were retired in 2026-07 once the
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architecture-review ledger they served closed out (backlog#660/#665). Planning
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documents are no longer kept in the repository.
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