Mariadb配置文件优化参数（仅供参考）
时间：2021-07-01 10:21:17
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#password= your_passwordport= 3306 socket= /tmp/mysql.sock!includedir /opt/local/mysql/wsrep# The MySQL server[mysqld]port= 3306socket= /tmp/mysql.sockbasedir = /opt/local/mysqldatadir=/opt/local/mysql/data #数据库存放目录relay-log=/opt/local/mysql/relaylog/s74-relay-bin pid-file = /opt/local/mysql/mysql.pidlog-error = /opt/local/mysql/logs/mysqld.logopen_files_limit = 65535 ##skip-lockingskip-external-locking #跳过外部锁定back_log=3000 #暂存的连接数量 skip-name-resolve #关闭mysql的dns反查功能memlock #将mysqld 进程锁定在内存中lower_case_table_names = 1#query_response_time_stats=1#core-file#core-file-size = unlimitedquery_cache_type=1 #查询缓存 (0 = off、1 = on、2 = demand)performance_schema=0 #收集数据库服务器性能参数net_read_timeout=3600 #连接繁忙阶段（query）起作用net_write_timeout=3600 #连接繁忙阶段（query）起作用key_buffer_size = 32M #设置索引块缓存大小max_allowed_packet = 128M #通信缓冲大小table_open_cache = 1024 #table高速缓存的数量sort_buffer_size = 12M #每个connection（session）第一次需要使用这个buffer的时候，一次性分配设置的内存read_buffer_size = 8M #顺序读取数据缓冲区使用内存#sort_buffer_size = 32M#read_buffer_size = 32Mread_rnd_buffer_size = 32M #随机读取数据缓冲区使用内存myisam_sort_buffer_size = 32M #MyISAM表发生变化时重新排序所需的缓冲thread_cache_size = 120 #重新利用保存在缓存中线程的数量query_cache_size = 64Mjoin_buffer_size = 8M #Join操作使用内存bulk_insert_buffer_size = 32M #批量插入数据缓存大小delay_key_write=ON #在表关闭之前，将对表的update操作指跟新数据到磁盘，而不更新索引到磁盘，把对索引的更改记录在内存。这样MyISAM表可以使索引更新更快。在关闭表的时候一起更新索引到磁盘delayed_insert_limit=4000delayed_insert_timeout=600delayed_queue_size=4000# Try number of CPU‘s*2 for thread_concurrency# The variable only affects Solaris!thread_concurrency = 64 #CPU核数 * 2max_connections=1500 #最大连接（用户）数。每个连接MySQL的用户均算作一个连接max_connect_errors=30 #最大失败连接限制interactive_timeout=600 #服务器关闭交互式连接前等待活动的秒数wait_timeout=3600 #服务器关闭非交互连接之前等待活动的秒数slow_query_log #慢查询记录日志long_query_time = 0.1 #慢查询记录时间 0.1秒slow_query_log_file=/opt/local/mysql/logs/slow_query.log #慢查询日志路径#log_slow_verbosity=fulllog_slow_verbosity=query_plan ## Replication Master Server (default)# binary logging is required for replicationlog-bin=/opt/local/mysql/binlog/mysql-bin #binlog 名称log-slave-updates #从master取得并执行的二进制日志写入自己的二进制日志文件中replicate-ignore-db=mysql #不同步的表# binary logging format - mixed recommendedbinlog_format=row #binlog 格式 分别为 row=行格式 丶 mixed=混合格式 丶 STATEMENT=SQL语句复制模式event_scheduler=1 #计划任务 事件调度器# 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 omittedserver-id= 1 ## Point the following paths to different dedicated disks#tmpdir= /tmp/#log-update = /path-to-dedicated-directory/hostname# Uncomment the following if you are using InnoDB tables#innodb_data_home_dir = /data/mysql-5.1.48/mysql-data/#innodb_data_file_path = ibdata1:2000M;ibdata2:10M:autoextend#innodb_log_group_home_dir = /data/mysql-5.1.48/mysql-data/# You can set .._buffer_pool_size up to 50 - 80 %# of RAM but beware of setting memory usage too highinnodb_file_format=barracudainnodb_file_format_max=barracudainnodb_file_per_table=1innodb_fast_shutdown=0innodb_buffer_pool_size = 90000Minnodb_buffer_pool_instances = 4#innodb_additional_mem_pool_size = 20M#innodb_use_sys_malloc = 20M# Set .._log_file_size to 25 % of buffer pool sizeinnodb_log_file_size = 512M#innodb_log_buffer_size = 8Minnodb_log_files_in_group = 3innodb_flush_log_at_trx_commit = 2innodb_lock_wait_timeout = 3 innodb_rollback_on_timeout = oninnodb_flush_method=O_DIRECTtransaction-isolation=READ-COMMITTEDinnodb_thread_concurrency=0innodb_io_capacity=800innodb_purge_threads=1innodb_open_files=65535#innodb_stats_update_need_lock=0#innodb_flush_neighbor_pages=0 #innodb_aio_pending_ios_per_thread=256#for binlog_format=rowinnodb_autoinc_lock_mode=2#innodb_fast_checksum = 1innodb_read_io_threads = 8innodb_write_io_threads = 12innodb_stats_on_metadata = 0#使用线程池处理连接thread_handling=pool-of-threadsthread_pool_oversubscribe=30thread_pool_size=64thread_pool_idle_timeout=7200thread_pool_max_threads=2000#查询优化器开关#optimizer_switch=‘index_condition_pushdown=on‘#optimizer_switch=‘mrr=on‘#optimizer_switch=‘mrr_sort_keys=on‘#optimizer_switch=‘mrr_cost_based=off‘#mrr_buffer_size=32M#optimizer_switch=‘join_cache_incremental=on‘#optimizer_switch=‘join_cache_hashed=on‘#optimizer_switch=‘join_cache_bka=on‘#join_cache_level=4#join_buffer_size=32M#join_buffer_space_limit=32M[mysqldump]quickmax_allowed_packet = 16M[mysql]no-auto-rehash# Remove the next comment character if you are not familiar with SQL#safe-updates[myisamchk]key_buffer_size = 256Msort_buffer_size = 256Mread_buffer = 2Mwrite_buffer = 2M[isamchk]key_buffer_size = 256Msort_buffer_size = 256Mread_buffer = 2Mwrite_buffer = 2M[mysqlhotcopy]interactive-timeout
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Mariadb配置文件优化参数（仅供参考）
标签：col -name port buffer 事件调度器 nsa optimize function optimizer
