diff --git a/roles/mariadb/defaults/main.yml b/roles/mariadb/defaults/main.yml new file mode 100644 index 0000000..029b586 --- /dev/null +++ b/roles/mariadb/defaults/main.yml @@ -0,0 +1,25 @@ +--- +# file: roles/mariadb/defaults/main.yml +# +# Based on my running of mysqltuner.pl on a host with three WordPress databases +# and a Piwik instance monitoring three sites. +# + +# default is 128MB but is a waste because it seems only the mysql table uses it +key_buffer_size: 32M + +# default is 128MB but is a waste because it seems only information_schema uses +# AriaDB, see: https://mariadb.com/kb/en/mariadb/aria-system-variables +aria_pagecache_buffer_size: 8M + +# default is 128M, but set to at least the size of your InnoDB data +innodb_buffer_pool_size: 256M + +# Unless you have a pool size over 1GB, use a single instance +# See: https://mariadb.com/kb/en/mariadb/xtradbinnodb-server-system-variables +innodb_buffer_pool_instances: 1 + +# default is 100 but the max I've seen used is 5, so let's reduce it +max_connections: 33 + +# vim: set ts=2 sw=2: diff --git a/roles/mariadb/handlers/main.yml b/roles/mariadb/handlers/main.yml new file mode 100644 index 0000000..49112de --- /dev/null +++ b/roles/mariadb/handlers/main.yml @@ -0,0 +1,5 @@ +--- +- name: restart mysql + service: name=mysql state=restarted + +# vim: set ts=2 sw=2: diff --git a/roles/mariadb/tasks/main.yml b/roles/mariadb/tasks/main.yml index 026b491..f2324e3 100644 --- a/roles/mariadb/tasks/main.yml +++ b/roles/mariadb/tasks/main.yml @@ -14,6 +14,12 @@ - python-mysqldb # for ansible tags: mariadb +- name: Create system my.cnf + template: src=my.cnf.j2 dest=/etc/mysql/my.cnf owner=root group=root mode=0644 + notify: + - restart mysql + tags: mariadb + - name: Start and enable MariaDB Service service: name=mysql state=started enabled=true tags: mariadb diff --git a/roles/mariadb/templates/my.cnf.j2 b/roles/mariadb/templates/my.cnf.j2 new file mode 100644 index 0000000..c65a683 --- /dev/null +++ b/roles/mariadb/templates/my.cnf.j2 @@ -0,0 +1,192 @@ +# MariaDB database server configuration file. +# +# You can copy this file to one of: +# - "/etc/mysql/my.cnf" to set global options, +# - "~/.my.cnf" to set user-specific options. +# +# One can use all long options that the program supports. +# Run program with --help to get a list of available options and with +# --print-defaults to see which it would actually understand and use. +# +# For explanations see +# http://dev.mysql.com/doc/mysql/en/server-system-variables.html + +# This will be passed to all mysql clients +# It has been reported that passwords should be enclosed with ticks/quotes +# escpecially if they contain "#" chars... +# Remember to edit /etc/mysql/debian.cnf when changing the socket location. +[client] +port = 3306 +socket = /var/run/mysqld/mysqld.sock + +# Here is entries for some specific programs +# The following values assume you have at least 32M ram + +# This was formally known as [safe_mysqld]. Both versions are currently parsed. +[mysqld_safe] +socket = /var/run/mysqld/mysqld.sock +nice = 0 + +[mysqld] +# +# * Basic Settings +# +user = mysql +pid-file = /var/run/mysqld/mysqld.pid +socket = /var/run/mysqld/mysqld.sock +port = 3306 +basedir = /usr +datadir = /var/lib/mysql +tmpdir = /tmp +lc_messages_dir = /usr/share/mysql +lc_messages = en_US +skip-external-locking +# +# Instead of skip-networking the default is now to listen only on +# localhost which is more compatible and is not less secure. +bind-address = 127.0.0.1 +# +# * Fine Tuning +# +max_connections = {{ max_connections }} +connect_timeout = 5 +wait_timeout = 600 +max_allowed_packet = 16M +thread_cache_size = 128 +sort_buffer_size = 4M +bulk_insert_buffer_size = 16M +tmp_table_size = 32M +max_heap_table_size = 32M +# +# * MyISAM +# +# This replaces the startup script and checks MyISAM tables if needed +# the first time they are touched. On error, make copy and try a repair. +myisam_recover_options = BACKUP +key_buffer_size = {{ key_buffer_size }} +#open-files-limit = 2000 +table_open_cache = 400 +myisam_sort_buffer_size = 512M +concurrent_insert = 2 +read_buffer_size = 2M +read_rnd_buffer_size = 1M +# +# * Query Cache Configuration +# +# Cache only tiny result sets, so we can fit more in the query cache. +query_cache_limit = 128K +query_cache_size = 64M +# for more write intensive setups, set to DEMAND or OFF +#query_cache_type = DEMAND +# +# * Logging and Replication +# +# Both location gets rotated by the cronjob. +# Be aware that this log type is a performance killer. +# As of 5.1 you can enable the log at runtime! +#general_log_file = /var/log/mysql/mysql.log +#general_log = 1 +# +# Error logging goes to syslog due to /etc/mysql/conf.d/mysqld_safe_syslog.cnf. +# +# we do want to know about network errors and such +log_warnings = 2 +# +# Enable the slow query log to see queries with especially long duration +#slow_query_log[={0|1}] +slow_query_log_file = /var/log/mysql/mariadb-slow.log +long_query_time = 10 +#log_slow_rate_limit = 1000 +log_slow_verbosity = query_plan + +#log-queries-not-using-indexes +#log_slow_admin_statements +# +# The following can be used as easy to replay backup logs or for replication. +# note: if you are setting up a replication slave, see README.Debian about +# other settings you may need to change. +#server-id = 1 +#report_host = master1 +#auto_increment_increment = 2 +#auto_increment_offset = 1 +log_bin = /var/log/mysql/mariadb-bin +log_bin_index = /var/log/mysql/mariadb-bin.index +# not fab for performance, but safer +#sync_binlog = 1 +expire_logs_days = 10 +max_binlog_size = 100M +# slaves +#relay_log = /var/log/mysql/relay-bin +#relay_log_index = /var/log/mysql/relay-bin.index +#relay_log_info_file = /var/log/mysql/relay-bin.info +#log_slave_updates +#read_only +# +# If applications support it, this stricter sql_mode prevents some +# mistakes like inserting invalid dates etc. +#sql_mode = NO_ENGINE_SUBSTITUTION,TRADITIONAL +# +# * InnoDB +# +# InnoDB is enabled by default with a 10MB datafile in /var/lib/mysql/. +# Read the manual for more InnoDB related options. There are many! +default_storage_engine = InnoDB +# you can't just change log file size, requires special procedure +#innodb_log_file_size = 50M +innodb_buffer_pool_size = {{ innodb_buffer_pool_size }} +innodb_log_buffer_size = 8M +innodb_file_per_table = 1 +innodb_open_files = 400 +innodb_io_capacity = 400 +innodb_flush_method = O_DIRECT +innodb_buffer_pool_instances = {{ innodb_buffer_pool_instances }} + +aria_pagecache_buffer_size = {{ aria_pagecache_buffer_size }} +# +# * Security Features +# +# Read the manual, too, if you want chroot! +# chroot = /var/lib/mysql/ +# +# For generating SSL certificates I recommend the OpenSSL GUI "tinyca". +# +# ssl-ca=/etc/mysql/cacert.pem +# ssl-cert=/etc/mysql/server-cert.pem +# ssl-key=/etc/mysql/server-key.pem + +# +# * Galera-related settings +# +[galera] +# Mandatory settings +#wsrep_on=ON +#wsrep_provider= +#wsrep_cluster_address= +#binlog_format=row +#default_storage_engine=InnoDB +#innodb_autoinc_lock_mode=2 +# +# Allow server to accept connections on all interfaces. +# +#bind-address=0.0.0.0 +# +# Optional setting +#wsrep_slave_threads=1 +#innodb_flush_log_at_trx_commit=0 + +[mysqldump] +quick +quote-names +max_allowed_packet = 16M + +[mysql] +#no-auto-rehash # faster start of mysql but no tab completion + +[isamchk] +key_buffer = 16M + +# +# * IMPORTANT: Additional settings that can override those from this file! +# The files must end with '.cnf', otherwise they'll be ignored. +# +!includedir /etc/mysql/conf.d/