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Zhengchao An
99c3811d93
T2 of backlog#1827. `data_movement_stage_error` flattened every stage failure into `Error::other(format!(...))`, discarding the typed error. The cost was visible in tree: `is_decommission_target_capacity_error` had to match rendered text —
let message = err.to_string();
message.contains(&disk_full) || message.contains(&storage_full)
— to notice that the destination pool had filled up, and `is_decommission_copy_cleanup_safe_error` could not see a not-found that surfaced from inside a stage at all.
The wrapper now carries what it wrapped. `DataMovementStageError` renders the same string and returns the original through `source()`; `Error::other` boxes it through `std::io::Error`, so `data_movement_stage_source` recovers it by downcast. Both classifiers unwrap before matching, keeping their substring paths for errors that arrive through some other wrapper.
The rendered message is unchanged, which a test now pins against the exact string the old `format!` produced rather than against a `contains`. Three more cover the round trip for `DiskFull`, `StorageFull`, `FileNotFound` and `SlowDown`, that unrelated errors are not mistaken for stage wrappers, and — the case the issue names — that a not-found surfacing from inside a stage is judged cleanup-safe by the decommission loop exactly as a direct one is.
Refs backlog#1827
RustFS ECStore - Erasure Coding Storage
High-performance erasure coding storage engine for RustFS distributed object storage
📖 Documentation
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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
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