Upgrading to RHS2.0 U5 (3.3.0.11rhs) causes crashes of glusterfs/nfs and hangs on connected NFS-clients
Issue
- Performing the recommended upgrade of glusterfs on our RHS servers, the
gluster-nfsmechanism failed, causing all of the NFS-clients to hang for several hours. - Updating was done as a rolling live upgrade. The hang occurred immediately after the first of 4 RHS servers got the upgrade.
- After many attempts to remedy the problem, the only fix that worked was doing a
yum downgrade glusterfson the servers. NFS functionality was immediately restored. The downgraded version available was glusterfs-3.3.0.7rhs-1.
Environment
- Red Hat Storage 2.0
- update to GlusterFS version 3.3.0.11rhs
- NFS-clients connected to Red Hat Storage volumes
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