c5c577518d
The task files galera_add_node.yml and galera_bootstrap.yml in the galera_server role both restart mysql based on conditions. These conditions are incorrectly defined causing restarts to happen every time . This commit addresses several issues related to how these conditions are defined and compared. - The the pgrep pattern for the task 'Check if mysql is running' has been modified so that is no longer matches the ansible shell command. It also ignores errors generated by pgrep failing to find a match so that it can be used by other tasks. - The registered variables, used by the when clauses, have appropriately defined changed attributes. This commit modifies the when clauses to make use of them. - The when clause for the tasks 'bootstrap cluster (initialise mysql with --wsrep-new-cluster)' and 'Restart mysql' were always being met because 'mysql_running != 0' should be 'mysql_running.rc != 0', they has been adjusted to use the changed status. Closes-bug: #1444308 Change-Id: Ib2879bfe9754575fd984a1f1d132d5a42b848e21
61 lines
1.7 KiB
YAML
61 lines
1.7 KiB
YAML
---
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# Copyright 2014, 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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- name: Check if mysql is running
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shell: "pgrep -fl [m]ysqld"
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register: mysql_running
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changed_when: mysql_running.rc != 0
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ignore_errors: True
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tags:
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- galera-bootstrap
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- name: Check wsrep cluster size
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shell: |
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mysql -e 'show status like "wsrep_cluster_size%"\G'|awk '/Value/{print $2}'
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register: wsrep_cluster_size
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changed_when: wsrep_cluster_size.stdout|search("1")
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when: not mysql_running|changed
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tags:
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- galera-bootstrap
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- name: Stop mariadb
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service:
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name: mysql
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state: stopped
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pattern: mysqld
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register: mysqlstopped
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when: >
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(not mysql_running|changed) and
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(wsrep_cluster_size|changed or wsrep_cluster_size.stderr | search("ERROR"))
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tags:
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- galera-bootstrap
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- name: Check if mysql is running
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shell: "pgrep -fl [m]ysqld"
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register: mysql_running
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changed_when: mysql_running.rc != 0
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ignore_errors: True
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tags:
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- galera-bootstrap
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- name: bootstrap cluster (initialise mysql with --wsrep-new-cluster)
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service:
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name: mysql
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state: restarted
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args: --wsrep-new-cluster
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when: wsrep_cluster_size|changed or mysqlstopped|changed or mysql_running|changed
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tags:
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- galera-bootstrap
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