Red Hat Gluster Storage 3.5 update 6 Resolved Issues and Enhancements

Red Hat Gluster Storage 3.5 update 6 is a batch release for Red Hat Gluster Storage 3.5 and can be applied as an update to an existing installation or can be used to create a new installation. Red Hat Gluster Storage 3.5 update 6 updates are cumulative and include fixes from previous releases.

The following list provides errata for Red Hat Gluster Storage 3.5 update 6 and contains the complete list of fixes :

• glusterfs bug fix and enhancement update
• glusterfs bug fix and enhancement update

Notable Bug Fixes

• This content is not included.1994593 Granular entry self-heal is taking more time than full entry self heal for creation and deletion workloads

  • Previously, granular entry self heal took more time than the full entry self heal when there were many entry self heals pending due to the creation and deletion heavy workloads. With this update, the extra lookup to delete the stale index is removed from the code path of the granular entry self heal, which improves the heal performance in the creation and deletion heavy workloads when the granular entry self heal is enabled.

• This content is not included.1612894 [Ganesha] Find's are hung/slow on client when new writes were running in parallel

  • With this update, the readdir implementation has been substantially improved between nfs-ganesha-2.5.x and 3.x. Hence, readdir responses, including those done by a find command, are faster and no longer prone to hanging.

Support Limits

• For RHEL based Red Hat Gluster Storage upgrading to 3.5 batch update 6 with Samba, the write-behind translator has to be manually disabled for all existing samba volumes.

 # gluster volume set <volname> performance.write-behind disable

• The following features are considered deprecated in Red Hat Gluster Storage 3.5. Red Hat does not support it on new deployments and existing deployments that upgrade to Red Hat Gluster Storage 3.5 update 4.

  • Tiering
  • Gluster-NFS
    • Gluster NFS users are advised to migrate to NFS-Ganesha before upgrading to RHGS 3.5.3. NFS-Ganesha provides enhanced functionality, additional security features, and performance improvements.
  • Quota
  • SMB Multi-Channel IO (Tech Preview)

Known Issue

• Setting the auth.allow option can crash Gluster mounts in hundreds of client configurations if the setting dynamic-auth is not disabled.
  • Users who have configured hundreds of auth.allow addresses can encounter issues with Gluster mounts crashing while a client is attempting to mount or remount the volume. This is because of setvolume requests not completed as the dns-server is taking an extended time to resolve the address. Currently, we are attempting to resolve the address by sequentially going through configured hosts in the auth-list and then comparing it to the client address. If a client hostname is near the end of the auth-list then we can breach the timeout threshold (42 seconds) and crash the mount.
    For more information, contact Red Hat Support.

For RHGS deprecations

User's requiring WebAdmin should remain on RHEL 7, as WebAdmin is not supported on RHEL 8.

Bugs Fixed in Red Hat Gluster Storage 3.5 update 6