8a9127efbc
On a running galera cluster, we don't want to unintentionally allow a galera_cluster_name from changing. This will cause a cluster to fail to start (if the nodes are restarted sequentially) as the cluter name value has changed. To ensure we can still change this value, a new "galera_force_change_cluster_name" variable is added, which can be set to "True" in order to change the cluster name. Change-Id: I8bae038bd207a15d5731b9c91b78df851a4c1986
88 lines
3.1 KiB
YAML
88 lines
3.1 KiB
YAML
---
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# Copyright 2015, Rackspace US, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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- include: galera_running_check.yml
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vars:
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num_retries: 1
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wait_delay: 3
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- name: Check for cluster state failure
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fail:
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msg: |
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The cluster may be broken, mysql is not running but appears to be
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installed. Fix it before re-running the playbook or override with
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'openstack-ansible -e galera_ignore_cluster_state=true galera-install.yml'.
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when:
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- not galera_ignore_cluster_state | bool
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- mysql_running.rc == 1
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- mysql_running.stderr | search("Check that mysqld is running and that the socket")
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tags:
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- galera-cluster-state-check
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- name: Gather mysql facts
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mysql_status_facts:
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ignore_errors: true
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tags:
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- galera-cluster-state-check
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- name: Check for cluster state failure
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fail:
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msg: |
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The cluster may be broken, mysql is running but unable to gather mysql facts.
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Fix it before re-running the playbook or override with
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'openstack-ansible -e galera_ignore_cluster_state=true galera-install.yml'.
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when:
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- not galera_ignore_cluster_state | bool
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- mysql_running.rc == 0
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- mysql_status is not defined
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tags:
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- galera-cluster-state-check
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- name: Check for cluster state failure
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fail:
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msg: |
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wsrep_incoming_addresses does not match across the cluster. Please fix before
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re-running the playbooks or override with
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'openstack-ansible -e galera_ignore_cluster_state=true galera-install.yml'.
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with_items: "{{ play_hosts }}"
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when:
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- not galera_ignore_cluster_state | bool
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- mysql_running.rc == 0
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- mysql_status['wsrep_incoming_addresses'] != hostvars[item]['mysql_status']['wsrep_incoming_addresses']
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tags:
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- galera-cluster-state-check
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- name: Fail if galera_cluster_name doesnt match file value
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fail:
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msg: >
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"The galera_cluster_name variable does not match what is set in mysql.
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Check your galera_cluster_name setting in your user_*.yml files in /etc/openstack_deploy
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and compare to the current value in /etc/mysql/conf.d/cluster.cnf on the host, and
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the wsrep_cluster_name value set in your running galera cluster.
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If you are sure you want to change this variable you can force change your
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galera_cluster_name variable by setting 'galera_force_change_cluster_name: True'"
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when:
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- mysql_running.rc == 0
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- mysql_status['wsrep_cluster_name'] != galera_cluster_name
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- not galera_force_change_cluster_name | bool
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tags:
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- galera-cluster-state-check
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- set_fact:
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galera_existing_cluster: true
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when: mysql_running.rc == 0
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tags:
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- galera-cluster-state-check
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