fix(object-data-cache): close identity-index races in fill/invalidate (backlog#1117/#1118/#1125/#1128/#1136) The object body cache's fill-vs-invalidation contract (index.insert before cache.insert, then re-check index membership and undo the fill on mismatch) had several races where the identity index and the cache could drift, either poisoning the race metric, breaking invalidation silently, or letting a principal evict a hot body on demand. ODC-12 (backlog#1117) — generation-aware index removal. The eviction listener removed (identity, key) by key equality with no way to tell an evicted old entry from a freshly refilled one under the same key. Verified against moka 0.12.15: an insert over a TTL/TTI-expired but not yet purged entry runs do_insert_with_hash inline during insert().await, and do_post_update_steps awaits notify_upsert INLINE with cause Expired (was_evicted() == true), so the listener deleted the index key the refill just registered and the post-insert recheck then self-destructed the fresh entry (SkippedInvalidationRace). A deferred Size notification for an old generation had the same effect on a cleanly refilled key. Chose Option A (generation token) over Option B (re-insert after cache.contains_key): B removes the key first and only reconciles afterward, which reopens a narrow window where a concurrent invalidate_object misses the key while it is transiently absent from the index. A never removes a key whose generation does not match, so the decision is atomic under the shard lock. The token is the cache entry's Arc pointer captured at fill time (readable from the value moka hands the listener), so no change to the entry type is needed. ODC-13 (backlog#1118) — cancellation-safe insert/recheck/undo. The recheck+undo sat after two awaits inside the S3 GET future; a client disconnect could cancel the fill at the recheck await after cache.insert made the entry visible, stranding a stale body with no index entry. The register/insert/recheck/undo sequence now runs in a spawned task whose JoinHandle the leader awaits: cancelling the await detaches the task, which still finishes the recheck and undo. The dropped leader unblocks waiters as before (SkippedSingleflightClosed), so no waiter is stranded. ODC-20 (backlog#1125) — do not prune in-flight sibling keys. prune_missing could remove another in-flight fill's index key (a different key of the same identity that had registered but not yet published its cache entry), making that fill's recheck fail and delete its own valid entry. Added a read-only ObjectDataCacheSingleflight::has_inflight and consult it in the prune predicate alongside cache.contains_key. ODC-23 (backlog#1128) — bounded eviction instead of clear-and-reject. Exceeding identity_keys_max drained the whole key set and rejected the incoming key, so a principal able to GET identity_keys_max+1 distinct versions could evict an object's hot body on demand, and identity_keys_max=1 on a versioned bucket meant a permanent 0% hit rate. The key set now evicts only the oldest key(s) (the Vec preserves insertion order) and inserts the new key. The insert result carries evicted_keys so the backend removes exactly those from the cache and still caches the newest body. The Overflow variant and the now-unused SkippedIdentityOverflow construction are gone. NOTE: the audit also asks for identity_keys_max >= 2 validation; that lives in config.rs (out of scope here) and is deferred to the config batch. ODC-31 (backlog#1136) — deterministic race coverage. Added a #[cfg(test)] fill barrier between the index insert and the cache insert so the fill-vs-invalidation recheck can be driven deterministically, plus a companion test asserting the identity-budget eviction drops the evicted keys' cache entries. New tests: - index: key_set_bounded_eviction_evicts_oldest_and_inserts_new, key_set_removes_only_matching_generation_token, key_set_duplicate_refreshes_generation_token - starshard_index: identity_index_bounded_eviction_evicts_oldest, identity_index_stale_eviction_preserves_refreshed_key, identity_index_matching_eviction_removes_key - moka_backend: moka_backend_refill_after_expiry_without_maintenance_inserts, moka_backend_concurrent_fills_same_identity_both_insert, moka_backend_identity_budget_evicts_oldest_and_caches_newest, moka_backend_fill_loses_race_to_invalidation, moka_backend_cancelled_fill_still_undoes_lost_race cargo fmt --all, cargo check/clippy/test -p rustfs-object-data-cache all pass (44 tests). Verified the refill-after-expiry and concurrent-fill tests fail without their respective fixes. Co-authored-by: heihutu <heihutu@gmail.com>
RustFS is a high-performance, distributed object storage system built in Rust.
Getting Started · Docs · Bug reports · Discussions
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RustFS is a high-performance, distributed object storage system built in Rust—one of the most loved programming languages worldwide. RustFS combines the simplicity of MinIO with the memory safety and raw performance of Rust. It offers broad S3 API compatibility for supported features, is completely open-source, and is optimized for data lakes, AI, and big data workloads.
Unlike other storage systems, RustFS is released under the permissible Apache 2.0 license, avoiding the restrictions of AGPL. With Rust as its foundation, RustFS delivers superior speed and secure distributed features for next-generation object storage.
Feature & Status
- High Performance: Built with Rust to ensure maximum speed and resource efficiency.
- Distributed Architecture: Scalable and fault-tolerant design suitable for large-scale deployments.
- S3 Compatibility: Seamless integration with common S3-compatible applications and tools; current coverage is tracked in the S3 compatibility matrix.
- OpenStack Swift API: Native support for Swift protocol with Keystone authentication.
- OpenStack Keystone Integration: Native support for OpenStack Keystone authentication with X-Auth-Token headers.
- Data Lake Support: Optimized for high-throughput big data and AI workloads.
- Open Source: Licensed under Apache 2.0, encouraging unrestricted community contributions and commercial usage.
- User-Friendly: Designed with simplicity in mind for easy deployment and management.
| Feature | Status | Feature | Status |
|---|---|---|---|
| S3 Core Features | ✅ Available | Bitrot Protection | ✅ Available |
| Upload / Download | ✅ Available | Single Node Mode | ✅ Available |
| Versioning | ✅ Available | Bucket Replication | ✅ Available |
| Logging | ✅ Available | Lifecycle Management | 🚧 Under Testing |
| Event Notifications | ✅ Available | Distributed Mode | 🚧 Under Testing |
| K8s Helm Charts | ✅ Available | RustFS KMS | 🚧 Under Testing |
| Keystone Auth | ✅ Available | Multi-Tenancy | ✅ Available |
| Swift API | ✅ Available | Swift Metadata Ops | 🚧 Partial |
RustFS vs MinIO Performance
Stress Test Environment:
| Type | Parameter | Remark |
|---|---|---|
| CPU | 2 Core | Intel Xeon (Sapphire Rapids) Platinum 8475B, 2.7/3.2 GHz |
| Memory | 4GB | |
| Network | 15Gbps | |
| Drive | 40GB x 4 | IOPS 3800 / Drive |
https://github.com/user-attachments/assets/2e4979b5-260c-4f2c-ac12-c87fd558072a
RustFS vs Other Object Storage
| Feature | RustFS | Other Object Storage |
|---|---|---|
| Console Experience | Powerful Console Comprehensive management interface. |
Basic / Limited Console Often overly simple or lacking critical features. |
| Language & Safety | Rust-based Memory safety by design. |
Go or C-based Potential for memory GC pauses or leaks. |
| Data Sovereignty | No Telemetry / Full Compliance Guards against unauthorized cross-border data egress. Compliant with GDPR (EU/UK), CCPA (US), and APPI (Japan). |
Potential Risk Possible legal exposure and unwanted data telemetry. |
| Licensing | Permissive Apache 2.0 Business-friendly, no "poison pill" clauses. |
Restrictive AGPL v3 Risk of license traps and intellectual property pollution. |
| Compatibility | S3-Compatible Core Works with common S3-compatible clients, with coverage tracked in the compatibility matrix. |
Variable Compatibility May lack support for local cloud vendors or specific APIs. |
| Edge & IoT | Strong Edge Support Ideal for secure, innovative edge devices. |
Weak Edge Support Often too heavy for edge gateways. |
| Risk Profile | Enterprise Risk Mitigation Clear IP rights and safe for commercial use. |
Legal Risks Intellectual property ambiguity and usage restrictions. |
Staying ahead
Star RustFS on GitHub and be instantly notified of new releases.
Quickstart
To get started with RustFS, follow these steps:
1. One-click Installation (Option 1)
curl -O https://rustfs.com/install_rustfs.sh && bash install_rustfs.sh
2. Docker Quick Start (Option 2)
The RustFS container runs as a non-root user rustfs (UID/GID 10001:10001). If you bind-mount host directories with Docker or Compose, every mounted path must be writable by that user, otherwise startup may fail with permission denied errors. This applies to data directories, log directories, and TLS certificate directories when RUSTFS_TLS_PATH is enabled.
# Create data and logs directories
mkdir -p data logs
# Change the owner of these directories
chown -R 10001:10001 data logs
# Using latest version
docker run -d -p 9000:9000 -p 9001:9001 -v $(pwd)/data:/data -v $(pwd)/logs:/logs rustfs/rustfs:latest
# Using specific version
docker run -d -p 9000:9000 -p 9001:9001 -v $(pwd)/data:/data -v $(pwd)/logs:/logs rustfs/rustfs:1.0.0-beta.8
If you use podman instead of docker, you can install the RustFS with the below command
# Create data and logs directories
mkdir -p data logs
# Run the container (podman will automatically set the folders ownership)
podman run -d -p 9000:9000 -p 9001:9001 -v $(pwd)/data:/data:Z,U -v $(pwd)/logs:/logs:Z,U rustfs/rustfs:latest
If you enable TLS with a bind-mounted certificate directory, prepare that mount the same way:
mkdir -p certs
chown -R 10001:10001 certs
You can also use Docker Compose. Using the docker-compose-simple.yml file in the root directory:
docker compose -f docker-compose-simple.yml up -d
Before running Compose with host bind mounts:
- Ensure every mounted host path is writable by
10001:10001. - If you enable TLS, ensure the certificate mount for
/opt/tlsis also readable by10001:10001. - If matching host ownership is not practical, run the
rustfsservice withuser: "<host-uid>:<host-gid>"instead. docker-compose-simple.ymlincludes avolume-permission-helperservice for named volumes.docker-compose-simple.ymlrelies on you to prepare bind-mounted host paths in advance.
Similarly, you can run the command with podman
podman compose -f docker-compose-simple.yml up -d
Webhook notification quick start (Docker):
docker run -d --name rustfs -p 9000:9000 \
-e RUSTFS_NOTIFY_ENABLE=true \
-e RUSTFS_NOTIFY_WEBHOOK_ENABLE_PRIMARY=on \
-e RUSTFS_NOTIFY_WEBHOOK_ENDPOINT_PRIMARY=http://<host-ip>:3020/webhook \
-e RUSTFS_NOTIFY_WEBHOOK_QUEUE_DIR_PRIMARY=/tmp/rustfs-events \
rustfs/rustfs:latest
Notes:
RUSTFS_NOTIFY_ENABLE=trueenables the global notify module switch.- For ARN
arn:rustfs:sqs::primary:webhook, use instance-scoped env vars with_PRIMARY. - If queue dir is omitted, default is
/opt/rustfs/events; ensure it is writable by the container runtime user. RUSTFS_NOTIFY_WEBHOOK_SKIP_TLS_VERIFY_PRIMARYdefaults tofalse; enabling it skips webhook TLS certificate verification, allows MITM attacks, and emits a startup warning. PreferRUSTFS_NOTIFY_WEBHOOK_CLIENT_CA_PRIMARYfor private CAs.
NOTE: We recommend reviewing the docker-compose.yml file before running. It defines several services including Grafana, Prometheus, and Jaeger, which are helpful for RustFS observability. If you wish to start Redis or Nginx containers, you can specify the corresponding profiles.
3. Build from Source (Option 3) - Advanced Users
For developers who want to build RustFS Docker images from source with multi-architecture support:
# Build multi-architecture images locally
./docker-buildx.sh --build-arg RELEASE=latest
# Build and push to registry
./docker-buildx.sh --push
# Build specific version
./docker-buildx.sh --release v1.0.0 --push
# Build for custom registry
./docker-buildx.sh --registry your-registry.com --namespace yourname --push
The docker-buildx.sh script supports:
- Multi-architecture builds:
linux/amd64,linux/arm64 - Automatic version detection: Uses git tags or commit hashes
- Registry flexibility: Supports Docker Hub, GitHub Container Registry, etc.
- Build optimization: Includes caching and parallel builds
You can also use Make targets for convenience:
make docker-buildx # Build locally
make docker-buildx-push # Build and push
make docker-buildx-version VERSION=v1.0.0 # Build specific version
make help-docker # Show all Docker-related commands
Heads-up (macOS cross-compilation): macOS keeps the default
ulimit -nat 256, socargo zigbuildor./build-rustfs.sh --platform ...may fail withProcessFdQuotaExceededwhen targeting Linux. The build script attempts to raise the limit automatically, but if you still see the warning, runulimit -n 4096(or higher) in your shell before building.
4. Build with Helm Chart (Option 4) - Cloud Native
Follow the instructions in the Helm Chart README to install RustFS on a Kubernetes cluster.
For scanner pacing, cycle budgets, bitrot cadence, lifecycle transition status, and single-node single-disk idle CPU tuning, see Scanner Runtime Controls. For repeatable scanner-pressure validation, see Scanner Benchmark Runbook.
5. Nix Flake (Option 5)
If you have Nix with flakes enabled:
# Run directly without installing
nix run github:rustfs/rustfs
# Build the binary
nix build github:rustfs/rustfs
./result/bin/rustfs --help
# Or from a local checkout
nix build
nix run
6. X-CMD (Option 6)
If you are an x-cmd user:
# Run directly without installing
x rustfs
# Download the binary and install it to the global environment
x env use rustfs
rustfs --help
Accessing RustFS
- Access the Console: Open your web browser and navigate to
http://localhost:9001to access the RustFS console.- Default credentials:
rustfsadmin/rustfsadmin
- Default credentials:
- Create a Bucket: Use the console to create a new bucket for your objects.
- Upload Objects: You can upload files directly through the console or use S3-compatible APIs/clients to interact with your RustFS instance.
NOTE: To access the RustFS instance via https, please refer to the TLS Configuration Docs.
OIDC Roles Claim (Microsoft Entra ID)
RustFS supports mapping an OIDC claim containing role values into the existing
authorization pipeline. The roles_claim setting is optional: when unset or
empty, only the groups claim contributes to authorization (same as older
RustFS releases). For Microsoft Entra ID app roles, set roles_claim=roles so
both console admin checks and bucket IAM policies can evaluate those roles.
Example environment configuration (opt-in roles claim):
RUSTFS_IDENTITY_OPENID_ENABLE=on
RUSTFS_IDENTITY_OPENID_CONFIG_URL="https://login.microsoftonline.com/<tenant-id>/v2.0/.well-known/openid-configuration"
RUSTFS_IDENTITY_OPENID_CLIENT_ID="<client-id>"
RUSTFS_IDENTITY_OPENID_CLIENT_SECRET="<client-secret>"
RUSTFS_IDENTITY_OPENID_SCOPES="openid,profile,email"
RUSTFS_IDENTITY_OPENID_GROUPS_CLAIM="groups"
RUSTFS_IDENTITY_OPENID_ROLES_CLAIM="roles"
Policy condition example (evaluate app roles directly with jwt:roles; when
roles_claim is configured, RustFS also merges those values into jwt:groups
for backward compatibility with older policies):
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": ["admin:*"],
"Resource": ["arn:aws:s3:::*"],
"Condition": {
"ForAnyValue:StringEquals": {
"jwt:roles": ["RustFS.ConsoleAdmin"]
}
}
}
]
}
Documentation
For detailed documentation, including configuration options, API references, and advanced usage, please visit our Documentation.
Getting Help
If you have any questions or need assistance:
- Check the FAQ for common issues and solutions.
- Join our GitHub Discussions to ask questions and share your experiences.
- Open an issue on our GitHub Issues page for bug reports or feature requests.
Links
- Documentation - The manual you should read
- Changelog - What we broke and fixed
- GitHub Discussions - Where the community lives
- Discord - Chat with the RustFS community
Contact
- Bugs: GitHub Issues
- Business: hello@rustfs.com
- Jobs: jobs@rustfs.com
- General Discussion: GitHub Discussions
- Contributing: CONTRIBUTING.md
Contributors
RustFS is a community-driven project, and we appreciate all contributions. Check out the Contributors page to see the amazing people who have helped make RustFS better.
Star History
License
RustFS is a trademark of RustFS, Inc. All other trademarks are the property of their respective owners.