# Example MariaDB config file for very large systems. # # This is for a large system with memory of 1G-2G where the system runs mainly # MariaDB. # # MariaDB programs look for option files in a set of # locations which depend on the deployment platform. # You can copy this option file to one of those # locations. For information about these locations, do: # 'my_print_defaults --help' and see what is printed under # Default options are read from the following files in the given order: # More information at: http://dev.mysql.com/doc/mysql/en/option-files.html # # In this file, you can use all long options that a program supports. # If you want to know which options a program supports, run the program # with the "--help" option. # The following options will be passed to all MySQL clients [client] #password = your_password port = 3306 socket = /opt/mariadb/data/mysql.sock # Here follows entries for some specific programs # The MySQL server [mysqld] default-time_zone='+0:00' port = 3306 datadir = /opt/mariadb/data socket = /opt/mariadb/data/mysql.sock skip-external-locking key_buffer_size = 384M max_allowed_packet = 1M table_open_cache = 512 sort_buffer_size = 2M read_buffer_size = 2M read_rnd_buffer_size = 8M myisam_sort_buffer_size = 64M thread_cache_size = 8 query_cache_size = 32M # Try number of CPU's*2 for thread_concurrency thread_concurrency = 8 innodb_file_per_table = on #为每个表都创建分区 skip_name_resolve = on #跳过域名解析 lower_case_table_names = 1 #忽略表名大小写 character-set-server = utf8mb4 #数据库编码 character-set-client = utf8mb4 slow_query_log long_query_time = 0.1 #mysql连接数设置 max_connections=5000 log_error=/opt/mariadb/logs/log_error.log slow_query_log_file = /opt/mariadb/logs/slow_query.log innodb_log_file_size = 512M innodb_flush_method = O_DIRECT innodb_log_files_in_group = 3 innodb_buffer_pool_size = {{ mariadb.innodb_buffer_pool_size }} innodb_buffer_pool_instances = 4 socket = /opt/mariadb/data/mysql.sock skip-external-locking key_buffer_size = 384M max_allowed_packet = 128M table_open_cache = 1024 sort_buffer_size = 2M read_buffer_size = 2M read_rnd_buffer_size = 8M myisam_sort_buffer_size = 64M thread_cache_size = 8 query_cache_size = 32M thread_concurrency = 16 #线程数量，推荐为cpu和核数的2倍 bulk_insert_buffer_size=100M slave_skip_errors = 1062 # Point the following paths to a dedicated disk #tmpdir = /tmp/ # Don't listen on a TCP/IP port at all. This can be a security enhancement, # if all processes that need to connect to mysqld run on the same host. # All interaction with mysqld must be made via Unix sockets or named pipes. # Note that using this option without enabling named pipes on Windows # (via the "enable-named-pipe" option) will render mysqld useless! # #skip-networking # Replication Master Server (default) # binary logging is required for replication log-bin=mysql-bin # required unique id between 1 and 2^32 - 1 # defaults to 1 if master-host is not set # but will not function as a master if omitted server-id = {{ groups['mariadb'].index(inventory_hostname) +1 }} auto_increment_increment = {{ groups.mariadb|length }} #步进值auto_imcrement。一般有n台主MySQL就填n auto_increment_offset = {{ groups['mariadb'].index(inventory_hostname) +1 }} #起始值。一般填第n台主MySQL。此时为第一台主MySQL log_slave_updates=on binlog-ignore-db = mysql binlog-ignore-db = performance_schema binlog-ignore-db = information_schema # Replication Slave (comment out master section to use this) # # To configure this host as a replication slave, you can choose between # two methods : # # 1) Use the CHANGE MASTER TO command (fully described in our manual) - # the syntax is: # # CHANGE MASTER TO MASTER_HOST=, MASTER_PORT=, # MASTER_USER=, MASTER_PASSWORD= ; # # where you replace , , by quoted strings and # by the master's port number (3306 by default). # # Example: # # CHANGE MASTER TO MASTER_HOST='125.564.12.1', MASTER_PORT=3306, # MASTER_USER='joe', MASTER_PASSWORD='secret'; # # OR # # 2) Set the variables below. However, in case you choose this method, then # start replication for the first time (even unsuccessfully, for example # if you mistyped the password in master-password and the slave fails to # connect), the slave will create a master.info file, and any later # change in this file to the variables' values below will be ignored and # overridden by the content of the master.info file, unless you shutdown # the slave server, delete master.info and restart the slaver server. # For that reason, you may want to leave the lines below untouched # (commented) and instead use CHANGE MASTER TO (see above) # # required unique id between 2 and 2^32 - 1 # (and different from the master) # defaults to 2 if master-host is set # but will not function as a slave if omitted #server-id = 2 # # The replication master for this slave - required #master-host = # # The username the slave will use for authentication when connecting # to the master - required #master-user = # # The password the slave will authenticate with when connecting to #master-password = # # The port the master is listening on. # optional - defaults to 3306 #master-port = # # binary logging - not required for slaves, but recommended #log-bin=mysql-bin # # binary logging format - mixed recommended #binlog_format=mixed # Uncomment the following if you are using InnoDB tables #innodb_data_home_dir = /usr/local/mysql/data #innodb_data_file_path = ibdata1:2000M;ibdata2:10M:autoextend #innodb_log_group_home_dir = /usr/local/mysql/data # You can set .._buffer_pool_size up to 50 - 80 % # of RAM but beware of setting memory usage too high #innodb_buffer_pool_size = 384M # Set .._log_file_size to 25 % of buffer pool size #innodb_log_file_size = 100M #innodb_log_buffer_size = 8M innodb_flush_log_at_trx_commit = 1 innodb_lock_wait_timeout = 300 sync_binlog=1 relay-log=relay-bin relay-log-index=relay-bin-index slave-skip-errors=all [mysqldump] quick max_allowed_packet = 256M [mysql] no-auto-rehash # Remove the next comment character if you are not familiar with SQL #safe-updates [myisamchk] key_buffer_size = 256M sort_buffer_size = 256M read_buffer = 2M write_buffer = 2M [mysqlhotcopy] interactive-timeout