#[mysql] #port = 3306 #socket = /var/run/mysqld/mysqld.sock [mysqld] performance-schema=0 # === Required Settings === #basedir = /usr bind_address = 127.0.0.1 # Change to 0.0.0.0 to allow remote connections #datadir = /var/lib/mysql datadir = /home/mysql #default_authentication_plugin = mysql_native_password # Enable in MySQL 8+ or MariaDB 10.6+ for backwards compatibility with common CMSs max_allowed_packet = 256M max_connect_errors = 1000000 #pid_file = /var/run/mysqld/mysqld.pid #port = 3306 #skip_external_locking #skip_name_resolve #socket = /var/run/mysqld/mysqld.sock #tmpdir = /tmp #user = mysql # === InnoDB Settings === default_storage_engine = InnoDB innodb_buffer_pool_instances = 8 # Use 1 instance per 1GB of InnoDB pool size - max is 64 innodb_buffer_pool_size = 35G # Use up to 70-80% of RAM innodb_file_per_table = 1 innodb_flush_log_at_trx_commit = 2 innodb_flush_method = O_DIRECT innodb_log_buffer_size = 16M innodb_log_file_size = 1G innodb_sort_buffer_size = 4M # UPD - Defines how much data is read into memory for sorting operations before writing to disk (default is 1M / max is 64M) innodb_stats_on_metadata = 0 innodb_io_capacity = 1000 # test #innodb_use_fdatasync = 1 # Only (!) for MySQL v8.0.26+ #innodb_temp_data_file_path = ibtmp1:64M:autoextend:max:20G # Control the maximum size for the ibtmp1 file innodb_thread_concurrency = 14 # Optional: Set to the number of CPUs on your system (minus 1 or 2) to better # contain CPU usage. E.g. if your system has 8 CPUs, try 6 or 7 and check # the overall load produced by MySQL/MariaDB. innodb_read_io_threads = 16 innodb_write_io_threads = 16 #innodb_io_capacity = 2000 # Depends on the storage tech - use 2000 for SSD, more for NVMe #innodb_io_capacity_max = 4000 # Usually double the value of innodb_io_capacity key_buffer_size = 16M # UPD low_priority_updates = 1 concurrent_insert = 2 # === Connection Settings === max_connections = 190 # UPD - Important: high no. of connections = high RAM consumption back_log = 512 thread_cache_size = 100 thread_stack = 192K interactive_timeout = 180 wait_timeout = 180 # === Buffer Settings === # Handy tip for managing your database's RAM usage: # The following values should be treated carefully as they are added together and then multiplied by your "max_connections" value. # Other options will also add up to RAM consumption (e.g. tmp_table_size). So don't go switching your "join_buffer_size" to 1G, it's harmful & inefficient. # Use one of the database diagnostics tools mentioned at the top of this file to count your database's potential total RAM usage, so you know if you are within # reasonable limits. Remember that other services will require enough RAM to operate properly (like Apache or PHP-FPM), so set your limits wisely. join_buffer_size = 8M # UPD read_buffer_size = 8M # UPD read_rnd_buffer_size = 8M # UPD sort_buffer_size = 8M # UPD # === Table Settings === # In systemd managed systems like Ubuntu 16.04+ or CentOS 7+, you need to perform an extra action for table_open_cache & open_files_limit # to be overriden (also see comment next to open_files_limit). # E.g. for MySQL 5.7, please check: https://dev.mysql.com/doc/refman/5.7/en/using-systemd.html # and for MariaDB check: https://mariadb.com/kb/en/library/systemd/ table_definition_cache = 50000 # UPD table_open_cache = 50000 # UPD open_files_limit = 60000 # UPD - This can be 2x to 3x the table_open_cache value or match the system's # open files limit usually set in /etc/sysctl.conf and /etc/security/limits.conf # In systemd managed systems this limit must also be set in: # - /etc/systemd/system/mysql.service.d/override.conf (for MySQL 5.7+ in Ubuntu) or # - /etc/systemd/system/mysqld.service.d/override.conf (for MySQL 5.7+ in CentOS) or # - /etc/systemd/system/mariadb.service.d/override.conf (for MariaDB) # otherwise changing open_files_limit will have no effect. # # To edit the right file execute: # $ systemctl edit mysql (or mysqld or mariadb) # and set "LimitNOFILE=" to something like 100000 or more (depending on your system limits for MySQL) # or use "LimitNOFILE=infinity" for MariaDB only. # Finally merge the changes with: # $ systemctl daemon-reload; systemctl restart mysql (or mysqld or mariadb) max_heap_table_size = 256M # Increase to 256M, 512M or 1G if you have lots of temporary tables because of missing indices in JOINs tmp_table_size = 256M # Use same value as max_heap_table_size # === Search Settings === ft_min_word_len = 3 # Minimum length of words to be indexed for search results # === Binary Logging === disable_log_bin = 1 # Binary logging disabled by default #log_bin # To enable binary logging, uncomment this line & only one of the following 2 lines # that corresponds to your actual MySQL/MariaDB version. # Remember to comment out the line with "disable_log_bin". #expire_logs_days = 1 # Keep logs for 1 day - For MySQL 5.x & MariaDB before 10.6 only #binlog_expire_logs_seconds = 86400 # Keep logs for 1 day (in seconds) - For MySQL 8+ & MariaDB 10.6+ only # === Error & Slow Query Logging === log_error = /var/lib/mysql/mysql_error.log #log_error_verbosity = 1 # 1 for ERROR, 2 for ERROR, WARNING, 3 for ERROR, WARNING, INFORMATION (MySQL only) # Set to 1 to prevent flooding your mysql_error.log to GBs with deprecation warnings log_queries_not_using_indexes = 0 # Disabled on production log_slow_query_time=5 log_slow_query=0 # Disabled on production log_slow_query_file="/var/lib/mysql/mysql_slow.log" max_allowed_packet = 1024M plugin-load-add=auth_socket.so unix_socket=OFF query_cache_type = 0 query_cache_size = 0