"HttpException :503" Displayed When Executing the openstack network agent list Command

Symptom

The message "HttpException: 503" is displayed after the openstack network agent list command is run.

Key Process and Cause Analysis

The Neutron password is incorrect.

Conclusion and Solution

1. Reconfigure the Neutron password.

   openstack user set --password NEW_PASSWORD USERNAME

2. Check and correct the content of [keystone_authtoken] in the /etc/neutron/neutron.conf file.

   

3. Restart the service for the modification to take effect.

   systemctl restart neutron-server.service