4.35

TrafficGuard/typedai4.35Jun 22, 2026by chrislusf

AI Summary

A patch release focused on improving FUSE mount stability, addressing volume server reliability issues, and enhancing S3 API performance and error handling.

Key Highlights

FUSE improvements include deadlock fixes, tolerance-window pattern detection for concurrent writes, and MD5 upload support.
Volume Server updates include phantom volume detection, remote S3 validation, and removal of deprecated bitrot flags.
S3 API fixes prevent hangs on large remote objects and improve Time To First Byte (TTFB).
Shell improvements allow displaying remote storage names in volume listings and topology error reporting.

New Features

FUSE stability and performance improvements.
Volume server reliability and validation.
S3 API robustness and timeout handling.
Helm Charts improvements (EmptyDir rejection).
Admin Server user inline policy display.

Full Release Notes

## What's Changed
* FUSE
  * fix(command): preserve fuse option after writers by @7y-9 in https://github.com/seaweedfs/seaweedfs/pull/9972
  * test: add FUSE database load/durability/perf benchmark by @chrislusf in https://github.com/seaweedfs/seaweedfs/pull/9980
  * mount: tolerance-window write pattern detection for concurrent writeback by @chrislusf in https://github.com/seaweedfs/seaweedfs/pull/9984
  * fix(mount): keep a deferred local create from vanishing when its dir is rebuilt by @chrislusf in https://github.com/seaweedfs/seaweedfs/pull/9991
  * fix(mount): pin rebuild entries by their own inode, not inodeToPath by @chrislusf in https://github.com/seaweedfs/seaweedfs/pull/9993
  * mount: fix deadlock reading an uncached remote-mounted file by @chrislusf in https://github.com/seaweedfs/seaweedfs/pull/9995
  * mount: cache supplementary group IDs for non-root access performance by @chrislusf in https://github.com/seaweedfs/seaweedfs/pull/10008
  * fix(mount): run entry invalidations off the meta-cache apply loop by @kisow in https://github.com/seaweedfs/seaweedfs/pull/10002
  * feat(mount): attach Content-MD5 to chunk uploads by @kisow in https://github.com/seaweedfs/seaweedfs/pull/10016

* Misc
  * security.toml: document WEED_ env override for jwt signing keys by @chrislusf in https://github.com/seaweedfs/seaweedfs/pull/9981
  * SECURITY.md: require working repro and trust-boundary impact by @chrislusf in https://github.com/seaweedfs/seaweedfs/pull/9990
  * mq(kafka): don't drop an existing topic when auto-create races by @chrislusf in https://github.com/seaweedfs/seaweedfs/pull/9998
  * Fix typo in SeaweedFS Filer description by @dantetemplar in https://github.com/seaweedfs/seaweedfs/pull/10009
  * Logs typos by @m-sementsov in https://github.com/seaweedfs/seaweedfs/pull/10018
  * feat: add Prometheus metrics for replication operations by @rushikesh90 in https://github.com/seaweedfs/seaweedfs/pull/10006
  * install.sh: fix stale --version example (v3.93 -> 4.34) by @chrislusf in https://github.com/seaweedfs/seaweedfs/pull/10025
  * feat: add Prometheus metric for volume creation operations by @rushikesh90 in https://github.com/seaweedfs/seaweedfs/pull/10026
  * stats: define metric subsystems as constants by @chrislusf in https://github.com/seaweedfs/seaweedfs/pull/10027

* Filer
  * filer: tolerance-window read pattern detection for concurrent readahead by @chrislusf in https://github.com/seaweedfs/seaweedfs/pull/9983
  * filer: skip COLLATE "C" list fallback on CockroachDB by @chrislusf in https://github.com/seaweedfs/seaweedfs/pull/10015

* Shell
  * shell: show remote storage name/key in volume.list output by @chrislusf in https://github.com/seaweedfs/seaweedfs/pull/9987
  * fix(shell): return fs.verify topology errors by @7y-9 in https://github.com/seaweedfs/seaweedfs/pull/9982

* Volume Server
  * storage: register tier backends at the binary composition root by @chrislusf in https://github.com/seaweedfs/seaweedfs/pull/9989
  * volume: remove ec.bitrotChecksum and ec.bitrotBlockSizeMB flags by @chrislusf in https://github.com/seaweedfs/seaweedfs/pull/10000
  * volume: validate remote S3 endpoints in FetchAndWriteNeedle (Rust) by @chrislusf in https://github.com/seaweedfs/seaweedfs/pull/10001
  * volume: detect phantom volumes held open as deleted FDs by @chrislusf in https://github.com/seaweedfs/seaweedfs/pull/10011

* Master
  * use Leader() instead of MaybeLeader() in SendHeartbeat by @giftz in https://github.com/seaweedfs/seaweedfs/pull/10029

* S3 API
  * s3: bound streaming remote-cache wait so large cold GetObject returns 503, not a hang by @chrislusf in https://github.com/seaweedfs/seaweedfs/pull/9988
  * s3api: add optional request interceptor to circuit breaker by @chrislusf in https://github.com/seaweedfs/seaweedfs/pull/9994
  * s3: improve TTFB for large remote objects by @chrislusf in https://github.com/seaweedfs/seaweedfs/pull/10010
  * fix(s3): verify SigV2 using percent-encoded path for Unicode object keys by @sergey-zinchenko in https://github.com/seaweedfs/seaweedfs/pull/10022

* Helm Charts
  * helm: reject emptyDir for volume idx, and rebuild a missing idx on restart by @chrislusf in https://github.com/seaweedfs/seaweedfs/pull/10005

* Admin Server and Worker
  * admin: surface user inline policies in object store user details by @msk-psp in https://github.com/seaweedfs/seaweedfs/pull/10013

* Mini
  * mini: resolve admin credentials from security.toml and env vars by @chrislusf in https://github.com/seaweedfs/seaweedfs/pull/10021

## New Contributors
* @dantetemplar made their first contribution in https://github.com/seaweedfs/seaweedfs/pull/10009
* @sergey-zinchenko made their first contribution in https://github.com/seaweedfs/seaweedfs/pull/10022

**Full Changelog**: https://github.com/seaweedfs/seaweedfs/compare/4.34...4.35