Open Stack

Are you proposing a solution or just raising an issue?

I did find it strange that kolla-ansible doesn't support HA queue by
default. That is a disaster because when one of the nodes goes down it will
make the whole rabbitMQ unacceptable. Whenever i deploy kolla i have to add
HA policy to make queue HA otherwise you will endup in problem.

On Sat, Apr 8, 2023 at 6:40 AM Nguyễn Hữu Khôi <nguyenhuukhoinw at gmail.com>
wrote:

> 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
>
> https://review.opendev.org/c/openstack/kolla-ansible/+/849487
>
> 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
>
>
> https://bugs.launchpad.net/oslo.messaging/+bug/1993149
> https://docs.openstack.org/large-scale/journey/configure/rabbitmq.html
>
> 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
>
>
> Nguyen Huu Khoi
>
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