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* fix(cache): gate GET body-cache hook to preserve ReadPlan output The ecstore GET body-cache hook serves cached full-object plaintext directly, bypassing ReadPlan/ReadTransform. That is only sound when the normal read path returns that same plaintext byte-for-byte. Two probe conditions were missing, plus two usecase-layer planner gaps. ODC-01 (backlog#1108): raw/data-movement reads. ReadPlan::build returns the STORED representation for raw_data_movement_read (e.g. compressed bytes, length = oi.size), but the cache holds the post-decompression body. Decommission (raw_data_movement_read: true) would receive decompressed plaintext where raw compressed bytes are required, silently corrupting the destination pool. ODC-02 (backlog#1109): compressed objects. ReadTransform::Compressed rewrites object_info.size to the decompressed length; on a hook hit object_info is returned unchanged, so object_info.size is the compressed size while the stream carries the decompressed body. UploadPartCopy then uses src_info.size as the copy length and truncates the part. Fix: gate the hook probe with should_probe_body_cache_hook, refusing raw_data_movement_read, data_movement, and compressed objects, mirroring the conditions get_small_object_direct_memory_decision already applies. ODC-33 (backlog#1138): build_get_object_body_cache_plan lacked the is_remote() exclusion the ecstore hook enforces; add it so transitioned (remote-tier) objects are excluded uniformly. ODC-C1 (backlog#1142): zero-length bodies save no I/O (ecstore returns an empty body before the hook probe) yet the planner admitted them; change the guard to response_content_length <= 0 so they plan Skip, mirroring should_buffer_get_object_in_memory_with_threshold. Tests: body_cache_hook_gate_tests (4) cover plain-probe plus raw/data-movement/compressed skips; planner gains plan_skips_remote_transitioned_objects and plan_skips_zero_length_objects. Co-Authored-By: heihutu <heihutu@gmail.com> * fix(cache): allow compressed bodies via a fail-closed read allow-list The body-cache hook probe was gated by a deny-list that refused compressed objects outright, which cost the cache every compressed body — a growing share of stored data. Replace it with an allow-list that returns the exact plaintext length a hit may serve, or None. full_object_plaintext_len() answers a single question: would the normal ReadPlan produce this object's complete plaintext, and under which size? Compressed objects now qualify, and the hit site publishes the returned length as object_info.size, reproducing the contract ReadTransform:: Compressed establishes. A hit whose body length disagrees is refused and falls through to the erasure read. This also closes a gate the deny-list only covered by accident: a restore read forces ReadPlan down the Plain branch, so a compressed object yields STORED bytes under its compressed size. Refusing compressed objects hid that; admitting them exposes it, so restore reads are refused explicitly. Being fail-closed, a newly added ReadPlan branch bypasses the cache by default rather than silently serving the wrong representation — the structural defect behind both backlog#1108 and backlog#1109. Refs: backlog#1108, backlog#1109 Co-Authored-By: heihutu <heihutu@gmail.com> --------- Co-authored-by: heihutu <heihutu@gmail.com>
RustFS ECStore - Erasure Coding Storage
High-performance erasure coding storage engine for RustFS distributed object storage
📖 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