Cinder Services Down After Host Upgrade

Problem

• Cinder services are down after the host upgrade.
• Unable to start the Cinder services. Below errors are observed in /var/log/pf9/cindervolume-base.log

WARNING cinder.volume.manager [req-xxxx  None None] Update driver status failed: (config name other-backend) is uninitialized.WARNING cinder.utils [req-xx None xxxx ] Volume driver (TintriDriver 2.2.0.1) is currently unsupported and may be removed in the next release of OpenStack.  Use at your own risk.

Environment

• Platform9 Managed OpenStack - v4.3
• Cinder
• Tintri Backend driver.

Cause

Tintri driver is marked as unsupported in the OpenStack Stein release and will be removed from the OpenStack Train release.

Resolution

Follow the below steps to resolve the issue with OpenStack Stein Release:

1. Add the configuration in the Cinder configuration file.

$ vi /opt/pf9/etc/pf9-cindervolume-base/conf.d/cinder_override.conf[other-backend]..enable_unsupported_driver=True..

2. Restart the service Cinder service on the affected Cinder nodes.

$ systemctl restart pf9-cindervolume-base.service

Additional Information

Refer to the below links for respective OpenStack release notes.

• Cinder Stein Series Release Notes
• Cinder Train Series Release Notes