{%- set wsrep_driver = '/usr/lib/galera/libgalera_smm.so' if kolla_base_distro in ['debian', 'ubuntu'] else '/usr/lib64/galera/libgalera_smm.so' %}
{% set sst_method = 'mariabackup' %}

[client]
default-character-set=utf8

[mysql]
default-character-set=utf8

[mysqld]
basedir=/usr
bind-address={{ api_interface_address }}
port={{ mariadb_port }}

log-error=/var/log/kolla/mariadb/mariadb.log

log-bin=mysql-bin
binlog_format=ROW
expire_logs_days=14
default-storage-engine=innodb
innodb_autoinc_lock_mode=2

collation-server = utf8_general_ci
init-connect='SET NAMES utf8'
character-set-server = utf8

datadir=/var/lib/mysql/

wsrep_cluster_address=gcomm://{% if (groups['mariadb'] | length) > 1 %}{% for host in groups['mariadb'] %}{{ 'api' | kolla_address(host) | put_address_in_context('url') }}:{{ mariadb_wsrep_port }}{% if not loop.last %},{% endif %}{% endfor %}{% endif %}

{% if api_address_family == 'ipv6' and kolla_base_distro == 'centos' %}
# FIXME(jeffrey4l): Revert when using C8 (CentOS+Ussuri)
# Use [::] to avoid galera issue.
# for more info see https://github.com/codership/galera/issues/534#issuecomment-472607544
wsrep_provider_options=gmcast.listen_addr=tcp://[::]:{{ mariadb_wsrep_port }};ist.recv_addr={{ api_interface_address | put_address_in_context('url') }}:{{ mariadb_ist_port }}
{% else %}
wsrep_provider_options=gmcast.listen_addr=tcp://{{ api_interface_address | put_address_in_context('url') }}:{{ mariadb_wsrep_port }};ist.recv_addr={{ api_interface_address | put_address_in_context('url') }}:{{ mariadb_ist_port }}
{% endif %}

wsrep_node_address={{ api_interface_address | put_address_in_context('url') }}:{{ mariadb_wsrep_port }}
{% if api_address_family == 'ipv6' and kolla_base_distro == 'centos' %}
# FIXME(yj.bai): Revert when using C8 (CentOS+Ussuri)
# Use IPv6-resolvable hostname to avoid galera issue.
wsrep_sst_receive_address={{ ansible_hostname }}:{{ mariadb_sst_port }}
{% else %}
wsrep_sst_receive_address={{ api_interface_address | put_address_in_context('url') }}:{{ mariadb_sst_port }}
{% endif %}

wsrep_provider={{ wsrep_driver }}
wsrep_cluster_name="{{ database_cluster_name }}"
wsrep_node_name={{ ansible_hostname }}
wsrep_sst_method={{ sst_method }}
wsrep_sst_auth={{ database_user }}:{{ database_password }}
wsrep_slave_threads=4
wsrep_notify_cmd=/usr/local/bin/wsrep-notify.sh
wsrep_on = ON

max_connections=10000

key_buffer_size = '64M'
max_heap_table_size = '64M'
tmp_table_size = '64M'
{% set dynamic_pool_size_mb = (hostvars[inventory_hostname]['ansible_memtotal_mb'] * 0.4) | round | int %}
{% if dynamic_pool_size_mb < 8192 %}
innodb_buffer_pool_size = '{{ dynamic_pool_size_mb }}M'
{% else %}
innodb_buffer_pool_size = '8192M'
{% endif %}

# The default value for innodb_lock_schedule_algorithm is VATS, but this does
# not work with galera. Set FCFS explicitly to avoid a warning.
# https://mariadb.com/kb/en/library/innodb-system-variables/#innodb_lock_schedule_algorithm.
innodb_lock_schedule_algorithm = FCFS

[server]
pid-file=/var/lib/mysql/mariadb.pid

[sst]
{% if sst_method == 'mariabackup' and api_address_family == 'ipv6' %}
# NOTE(yoctozepto): for IPv6 we need to tweak sockopt for socat (mariabackup sst backend)
# see: https://mariadb.com/kb/en/library/xtrabackup-v2-sst-method/#performing-ssts-with-ipv6-addresses
# and: https://jira.mariadb.org/browse/MDEV-18797
# this can be removed when MDEV-18797 is resolved
sockopt=",pf=ip6"
{% endif %}
