Files
rustfs/crates/ecstore
Zhengchao An e9af89b40d fix(ecstore): purge orphan empty-directory trees on folder delete (#4220)
fix(ecstore): purge orphan empty-directory trees on folder delete (#4189)

Empty "phantom" folders — on-disk directory trees with no xl.meta
anywhere — show up in listings as common prefixes but cannot be removed
by any S3 call: DeleteObject on the folder key encodes it to __XLDIR__,
finds no metadata, and returns NotFound, which the API layer masks as a
fake 204 while the tree survives on disk.

Make handle_delete_object attempt a guarded purge when a dir-object key
resolves to NotFound:

- sweep every erasure set of every pool (orphan fragments can sit on
  any set, left behind by whichever sets stored the deleted children)
- per set, refuse if ANY disk holds a regular file under the prefix,
  so degraded/healable objects are never destroyed
- remove empty directories children-first with non-recursive deletes;
  a racing PutObject makes the rmdir fail with DirectoryNotEmpty and
  the entry is skipped

This state is unrepresentable on AWS S3 (CommonPrefixes derive only
from real keys; DeleteObject is an idempotent 204), so the purge moves
visible behavior closer to S3. It deliberately goes beyond MinIO, whose
DeleteObject leaves these trees stranded and whose heal only removes
dangling (minority-presence) dirs — a long-standing complaint
(minio/minio#15257, #19516, #18444).

Also move the test-only content_matches_by_etag import in
replication_target_boundary.rs into the cfg(test) module; it failed
cargo clippy -D warnings and blocked the pre-PR gate.

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-03 11:34:43 +08:00
..

RustFS

RustFS ECStore - Erasure Coding Storage

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

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📖 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.

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All other trademarks are the property of their respective owners.

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