GoogleCloudPlatform/gcsfuse v2.2.0 on GitHub

New Features:

Kernel-list-cache:
- List responses, that happen as a part of a readdir
  operation, are cached in the kernel page cache. This can significantly speed
  up AI/ML training runs, which do full directory listing first, by serving
  repeat ListObjects calls locally from the kernel page cache.
- Cache invalidation is controlled via the --kernel-list-cache-ttl-secs cli
  flag or file-system:kernel-list-cache-ttl-secs config flag , where a value
  of:
  - 0 means disabled. This is the default value.
  - valid positive - represents the ttl (in seconds) to keep the directory
    list response in the kernel page-cache.
  - -1 to bypass a TTL expiration and serve the list response from the cache
    whenever it's available.

Enhancements:

Allow parallel lookups of files:
- Allows parallel lookup/access of files under the same directory.
- Before this release, if an application accessed two files
  /gcsfuse/mount/a.txt & /gcsfuse/mount/b.txt in parallel, then access was
  serialized (both at Kernel's FUSE driver layer and GCSFuse).
- With this release, access is parallelized improving read performance up to
  18x when reading 100K files using 50 threads.

Dependency Upgrades / CVE fixes:

What's Changed

Moving auth and config packages to stretchr/testify by @sethiay in #1918
BucketType method to locally store bucketType in variable by @Tulsishah in #1896
[PR1] allow parallel lookups by @sethiay in #1866
Include code-coverage badge in README by @kislaykishore in #1933
Update .codecov.yml to use the PRs base as reference by @kislaykishore in #1934
[PR2] Composite tests for Parallel dirops test. by @sethiay in #1906
Move to stretchr testify in ratelimit & util packages by @sethiay in #1922
Add a Cobra root command. by @kislaykishore in #1908
[PR3] E2E tests for parallel dirops by @sethiay in #1907
Add timeout to the coverage workflow by @kislaykishore in #1940
Metadata-prefetch (aka Recursive listing or ls -R during mount) by @gargnitingoogle in #1930
[PR1] Support to keep ReadDir response in kernel cache by @raj-prince in #1897
Implement method to return bucket type from server by @Tulsishah in #1898
Disable the "changes" feature of codecov by @kislaykishore in #1952
Remove some flagset to decrease timeout for e2e tests by @Tulsishah in #1951
Mark "metadata-prefetch-on-mount" as experimental by @gargnitingoogle in #1957

Full Changelog: v2.1.0...v2.2.0