Description of problem: Snapshot command fails with certain error saying snapshot command failed check log with the latest 3.3.0 builds. Version-Release number of selected component (if applicable): glusterfs-server-3.8.4-20.el7rhgs.x86_64 How reproducible: Always Steps to Reproduce: 1.Enable USS & features.show-snapshot-directory for the gluster volume 2.Try creating a snapshot 3. Actual results: snapshot create: failed: Brick ops failed on localhost. Please check log file for details Snapshot command failed Expected results: Should not fail creating snapshot Additional info:
RCA: This is a regression caused by a recent patch. We are supposed to search for barrier xlator in the brick graph, but with multiplexing we have to choose from different barrier, to distinguish we are using brickname. But the way we use brickname as xlator name is different which caused this regression.
Version -------- samba-4.6.2-0.el7rhgs.x86_64 glusterfs-fuse-3.8.4-22.el7rhgs.x86_64 Able to create snapshots with the latest builds. Enabled all USS Plugins Create snapshot --- success Activate snapshot --- success Marking it as verified.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2017:2774