How to enable mirrored queues in Red Hat Openstack Services on OpenShift

Environment

• Red Hat Openstack Services on OpenShift version 18.0.7 and earlier.

Issue

• Services are not configured to use mirrored queues.

Resolution

Repeat the following steps for each RabbitMQ cluster in your deployment, including the RabbitMQ clusters for each additional Compute cell you added to your environment:

1. Open a remote shell on any of the three rabbitmq cluster pods and run the following commands:

$ oc rsh rabbitmq-server-0
sh-5.1$ rabbitmqctl set_policy ha-all "" '{"ha-mode":"exactly","ha-params":2,"ha-promote-on-shutdown":"always"}'

2. Verify that the policy has been applied:

sh-5.1$ rabbitmqctl list_policies
Listing policies for vhost "/" ...
vhost   name    pattern apply-to        definition      priority
/       ha-all          all     {"ha-mode":"exactly","ha-params":2,"ha-promote-on-shutdown":"always"}   0

If you need to rollback the policy update, run the following command:

sh-5.1$ rabbitmqctl clear_policy ha-all

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