Failed to Log In to the Horizon WebUI

Symptom

Failed to log in to the Horizon WebUI.

Key Process and Cause Analysis

The memcached service is abnormal.

Check the memcached service. If "failed" is returned, the memcached service is abnormal. If "active (running) "is returned, the memcached service is normal.

systemctl status memcached.service

• If "failed" is displayed, the memcached service is abnormal.
  Figure 1 Abnormal memcached service
  
• If "active (running)" is displayed, the memcached service is normal.
  Figure 2 Normal memcached service
  

Conclusion and Solution

1. Run the following command to restore the memcached service:

   systemctl restart memcached.service