6ea86e6274
The rabbitmq playbook is designed to run in parallel across the cluster. This causes an issue when upgrading rabbitmq to a new major or minor version because RabbitMQ does not support doing an online migration of datasets between major versions. while a minor release can be upgrade while online it is recommended to bring down the cluster to do any upgrade actions. The current configuration takes no account of this. Reference: https://www.rabbitmq.com/clustering.html#upgrading for further details. * A new variable has been added called `rabbitmq_upgrade`. This is set to false by default to prevent a new version being installed unintentionally. To run the upgrade, which will shutdown the cluster, the variable can be set to true on the commandline: Example: openstack-ansible -e rabbitmq_upgrade=true \ rabbitmq-install.yml * A new variable has been added called `rabbitmq_ignore_version_state` which can be set "true" to ignore the package and version state tasks. This has been provided to allow a deployer to rerun the plays in an environment where the playbooks have been upgraded and the default version of rabbitmq has changed within the role and the deployer has elected to upgraded the installation at that time. This will ensure a deployer is able to recluster an environment as needed without effecting the package state. Example: openstack-ansible -e rabbitmq_ignore_version_state=true \ rabbitmq-install.yml * A new variable has been added `rabbitmq_primary_cluster_node` which allows a deployer to elect / set the primary cluster node in an environment. This variable is used to determine the restart order of RabbitMQ nodes. IE this will be the last node down and first one up in an environment. By default this variable is set to: rabbitmq_primary_cluster_node: "{{ groups['rabbitmq_all'][0] }}" scripts/run-upgrade.sh has been modified to pass 'rabbitmq_upgrade=true' on the command line so that RabbitMQ can be upgraded as part of the upgrade between OpenStack versions. DocImpact Change-Id: I17d4429b9b94d47c1578dd58a2fb20698d1fe02e Closes-bug: #1474992 |
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| policy-rc.d | ||