Files
overtrue 851ec36d86 feat(ecstore): add on-demand migration runtime OnDemandMigrationSys
Per-node runtime for On-Demand Migration (rustfs/backlog#2152): turns each
bucket's persisted config into a live SourceClient guarded by a three-state
circuit breaker, a TTL negative cache, per-key singleflight, a pull
concurrency semaphore and lock-free counters with a serializable snapshot.

- sys.rs: OnceLock singleton; `apply` installs/rebuilds/removes bucket state
  (config compared by value, counters preserved across rebuilds, old
  cancellation token fired); `publish` is the metadata publish-hook entry
  (sync removal, spawned install, generation-ordered so a slow older install
  cannot overwrite a newer one); `resolve(bucket, key)` judges module switch,
  bucket state, prefix filter, client availability, negative cache, breaker.
- breaker.rs: Closed/Open/HalfOpen with fixed constants (5 failures / 30 s
  window / 30 s open / 1 probe); NotFound resets, AccessDenied is neutral.
- negative_cache.rs: moka sync cache keyed by local key, ttl=0 disables.
- stats.rs: requests_total{op,outcome}, pulled_bytes/objects, pull_failures,
  inflight/queue gauges, log-bucket latency histogram, last_source_error;
  snake_case snapshot pinned by a golden JSON test.
- Anonymous sources surface as a typed `OdmStateError::AnonymousUnsupported`
  until the shared client builder gains an anonymous mode.
- rustfs: `RUSTFS_ON_DEMAND_MIGRATION_ENABLED` module switch (default false)
  published to module_switches and injected into ecstore before bucket
  metadata loads; hook registered at the same point.
2026-09-02 23:19:24 +08:00
..

RustFS

RustFS ECStore - Erasure Coding Storage

High-performance erasure coding storage engine for RustFS distributed object storage

CI 📖 Documentation · 🐛 Bug Reports · 💬 Discussions


📖 Overview

RustFS ECStore provides erasure coding storage capabilities for the RustFS distributed object storage system. For the complete RustFS experience, please visit the main RustFS repository.

Features

  • Reed-Solomon erasure coding implementation
  • Configurable redundancy levels (N+K schemes)
  • Automatic data healing and reconstruction
  • Multi-drive support with intelligent placement
  • Parallel encoding/decoding for performance
  • Efficient disk space utilization

📚 Documentation

For comprehensive documentation, examples, and usage guides, please visit the main RustFS repository.

📄 License

This project is licensed under the Apache License 2.0 - see the LICENSE file for details.

Copyright 2024 RustFS Team

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

RustFS is a trademark of RustFS, Inc.
All other trademarks are the property of their respective owners.

Made with ❤️ by the RustFS Storage Team