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T

Zhengchao An 1e6207c08e fix(lock): fence write commit on lock loss (#4406 )

fix(lock): fence write commit on lock loss (backlog#899 Phase 2)

Phase 0+1 (#4388) made object write locks refreshable and marks the guard
lost when the heartbeat can no longer refresh a quorum, but does not act on
it. Under a partition a long write's lock can expire on an unreachable node
and be reclaimed, letting a third party re-acquire it; the original writer
keeps going and both commit -- a double write.

Expose the loss signal through NamespaceLockGuard::is_lock_lost() and
ObjectLockDiagGuard::is_lock_lost(), and fence the commit in put_object and
complete_multipart_upload: immediately before rename_data (the atomic commit
point), abort with a retryable NamespaceLockQuorumUnavailable (503) if the
lock was lost. In multipart the check precedes cleanup_multipart_path so a
lost lock leaves the upload intact and retryable. A write that already
reached rename_data Ok is durable and never aborted.

The loss criterion is unchanged (reacts to Phase 1's signal). Heal and the
long-GET read side are deferred follow-ups.

2026-07-08 15:01:24 +08:00

src

fix(lock): fence write commit on lock loss (#4406 )

2026-07-08 15:01:24 +08:00

Cargo.toml

refactor(obs): migrate metrics runtime/schema and tighten migration guards (#2584 )

2026-04-18 07:51:15 +00:00

README.md

docs: fix some dead link (#1053 )

2025-12-08 11:23:24 +08:00

README.md

RustFS Lock - Distributed Locking

High-performance distributed locking system for RustFS object storage

📖 Documentation · 🐛 Bug Reports · 💬 Discussions

📖 Overview

RustFS Lock provides distributed locking capabilities for the RustFS distributed object storage system. For the complete RustFS experience, please visit the main RustFS repository.

✨ Features

Distributed lock management across cluster nodes
Read-write lock support with concurrent readers
Lock timeout and automatic lease renewal
Deadlock detection and prevention
High-availability with leader election
Performance-optimized locking algorithms

📚 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.