From 21885c1f37fd28290f5fc04f40d5ad3581a80ed1 Mon Sep 17 00:00:00 2001 From: Jimmy McCrory Date: Wed, 5 Oct 2016 15:59:11 -0700 Subject: [PATCH] On single nodes use an empty cluster address When there is only one galera node, configure galera with an empty cluster address. Each time the mysql service starts on this node it will automatically create a new cluster. Closes-Bug: #1624327 Change-Id: If653b1aacbd446a4ea5bb806a839dad40011b5b8 --- defaults/main.yml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/defaults/main.yml b/defaults/main.yml index 6a3b9547..3b4b4317 100644 --- a/defaults/main.yml +++ b/defaults/main.yml @@ -67,7 +67,7 @@ galera_innodb_log_buffer_size: 128M ## wsrep configuration galera_wsrep_address: "{{ ansible_host }}" -galera_wsrep_cluster_address: "{% for host in galera_cluster_members %}{{ hostvars[host]['ansible_host'] }}{% if not loop.last %},{% endif %}{% endfor %}" +galera_wsrep_cluster_address: "{% if galera_cluster_members | length > 1 %}{% for host in galera_cluster_members %}{{ hostvars[host]['ansible_host'] }}{% if not loop.last %},{% endif %}{% endfor %}{% endif %}" galera_wsrep_node_incoming_address: "{{ galera_wsrep_address }}" galera_wsrep_slave_threads: "{{ (ansible_processor_vcpus | int > 0) | ternary (ansible_processor_vcpus, 2) }}" galera_wsrep_retry_autocommit: 3