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