400 error when logging into Horizon

Products

• VMware Integrated OpenStack

Issue/Introduction

• Intermittent error 400 when logging into horizon

Environment

7.x

Cause

This is caused by an upstream python-memcached issue where a client might connect to a memcache server with a flush_all request.  The will cause all cached data in the server to be expired.

Resolution

Workaround:

For 7.2 and above

Note: Any previous patch for this issue will need to be removed before applying the patch attached to this record.

1. Copy patch file from KB to VIO Manager
2. Add patch to inventory

viocli oneoffpatch add -l /tmp/vio-patch-7x-PR2917522.tgz

3. Install one-off patch

viocli oneoffpatch install -p <patch name>

4. List one-off patches and statuses

viocli oneoffpatch list
 

To remove this one-off patch

viocli oneoffpatch uninstall -p <patch name>

viocli oneoffpatch delete -p <patch name>

Additional Information

VIO vcli oneoff patch commands