AI 3.8-15.1.4 Release Notes

Summary

S3 proxy mode zero-copy reads improve segmented-read efficiency in proxy-mode deployments.
FUSE stream locking improvements reduce contention in the FUSE stream path.
Longer Netty close timeout defaults reduce premature connection closure during busy or slow shutdown paths.

S3 write cache list behavior is fixed for deployments affected by the earlier schema change.
Write-cache metadata handling is corrected so filenames containing spaces no longer risk metadata corruption in write-cache deployments that use FDB metadata.
FUSE directory listings no longer show ghost entries caused by an FDB pagination bug.
UFS multipart upload buffer leaks are fixed.
A Netty channel deadlock under very high write concurrency is fixed.

Only deployments with S3 write cache enabled are affected. For those deployments, the FDB metadata encoding changed in this release. If you are upgrading from 15.1.3 or earlier, existing metadata must be migrated before or during upgrade.

Only deployments with S3 write cache enabled need to take action. If you are upgrading from 15.1.3 or earlier, an FDB metadata migration is required.
Complete any pending writes and make sure the cluster is stable before starting the upgrade.
Do not plan on downgrading to 15.1.3 or earlier after migration unless you also restore a pre-upgrade FDB backup.

Last updated 29 days ago