Hello everyone.
I want to summary for who meets problems with Openstack when deploy cluster with 3 controller using Kolla Ansible
Scenario: 1 of 3 controller is down
1. Login horizon and use API such as nova, cinder will be very slow
fix by:
nano:
kolla-ansible/ansible/roles/heat/templates/heat.conf.j2
kolla-ansible/ansible/roles/nova/templates/nova.conf.j2
kolla-ansible/ansible/roles/keystone/templates/keystone.conf.j2
kolla-ansible/ansible/roles/neutron/templates/neutron.conf.j2
kolla-ansible/ansible/roles/cinder/templates/cinder.conf.j2
or which service need caches
add as below
[cache]
backend = oslo_cache.memcache_pool
enabled = True
memcache_servers = {{ kolla_internal_vip_address }}:{{ memcached_port }}
memcache_dead_retry = 0.25
memcache_socket_timeout = 900
but it is not the end
2. Cannot launch instance or mapping block device(stuck at this step)
nano kolla-ansible/ansible/roles/rabbitmq/templates/definitions.json.j2
"policies":[
{"vhost": "/", "name": "ha-all", "pattern": "^(?!(amq\.)|(.*_fanout_)|(reply_)).*", "apply-to": "all", "definition": {"ha-mode":"all"}, "priority":0}{% if project_name == 'outward_rabbitmq' %},
{"vhost": "{{ murano_agent_rabbitmq_vhost }}", "name": "ha-all", "pattern": ".*", "apply-to": "all", "definition": {"ha-mode":"all"}, "priority":0}
{% endif %}
]
nano /etc/kollla/global.conf
[oslo_messaging_rabbit]
kombu_reconnect_delay=0.5
I used Xena 13.4 and Yoga 14.8.1.
Above bugs are critical, but I see that it was not fixed. I am just an operator and I want to share what I encountered for new people who come to Openstack
