mariadb配置文件优化参数
mariadb配置⽂件优化参数
杨幂胡歌
mariadb数据库优化需要根据⾃⼰业务需求以及根据硬件配置来进⾏参数优化，下⾯是⼀些关于mariadb数据库参数优化的配置⽂件。
1 如下为128G内存32线程处理器的mariadb配置参数优化：
[client]
#password= your_password
port= 3306
socket= /tmp/mysql.sock
!includedir /opt/local/mysql/wsrep
# The MySQL server
[mysqld]
port= 3306
socket= /tmp/mysql.sock
basedir = /opt/local/mysql
datadir=/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.pid
log-error = /opt/local/mysql/logs/mysqld.log
open_files_limit = 65535                        #
#skip-locking
skip-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
新发展理念的内涵是什么lower_case_table_names = 1
#query_response_time_stats=1
#core-file
#core-file-size = unlimited
query_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 = 32M
read_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 = 64M
join_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=4000
delayed_insert_timeout=600
delayed_queue_size=4000
# Try number of CPU's*2 for thread_concurrency
# The variable only affects Solaris!
thread_concurrency = 64                        #CPU核数 * 2
max_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=full
log_slow_verbosity=query_plan                  #
# Replication Master Server (default)
# binary logging is required for replication
log-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 recommended
binlog_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 omitted
server-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 high
innodb_file_format=barracuda
innodb_file_format_max=barracuda
innodb_file_per_table=1
innodb_fast_shutdown=0
innodb_buffer_pool_size = 90000M
innodb_buffer_pool_instances = 4删除浏览记录
#innodb_additional_mem_pool_size = 20M
#innodb_use_sys_malloc = 20M
# Set .._log_file_size to 25 % of buffer pool size
innodb_log_file_size = 512M
#innodb_log_buffer_size = 8M
innodb_log_files_in_group = 3
innodb_flush_log_at_trx_commit = 2
innodb_lock_wait_timeout = 3
innodb_rollback_on_timeout = on
innodb_flush_method=O_DIRECT
transaction-isolation=READ-COMMITTED
innodb_thread_concurrency=0
innodb_io_capacity=800
innodb_purge_threads=1
innodb_open_files=65535
#innodb_stats_update_need_lock=0
#innodb_flush_neighbor_pages=0
#innodb_aio_pending_ios_per_thread=256
#for binlog_format=row
innodb_autoinc_lock_mode=2
#innodb_fast_checksum = 1
innodb_read_io_threads = 8
innodb_write_io_threads = 12
innodb_stats_on_metadata = 0
#使⽤线程池处理连接
thread_handling=pool-of-threads
thread_pool_oversubscribe=30
thread_pool_size=64
thread_pool_idle_timeout=7200
thread_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]
quick
max_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 = 256M
sort_buffer_size = 256M
read_buffer = 2M
write_buffer = 2M
[isamchk]
key_buffer_size = 256M
sort_buffer_size = 256M
read_buffer = 2M
write_buffer = 2M
[mysqlhotcopy]
interactive-timeout
2 如下为256G内存64线程处理器的mariadb配置参数优化：
[client]
#password= your_password
port= 3306
socket= /tmp/mysql.sock
!
includedir /opt/local/mysql/wsrep
# The MySQL server
[mysqld]
port= 3306
socket= /tmp/mysql.sock
basedir = /opt/local/mysql
datadir=/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.pid
log-error = /opt/local/mysql/logs/mysqld.log
open_files_limit = 65535                        #
#skip-locking
skip-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 = unlimited
query_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 = 32M
read_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 = 64M
join_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=4000
delayed_insert_timeout=600
delayed_queue_size=4000
# Try number of CPU's*2 for thread_concurrency
# The variable only affects Solaris!
thread_concurrency = 96                          #CPU核数 * 2
max_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=full
log_slow_verbosity=query_plan                  #
# Replication Master Server (default)
# binary logging is required for replication
log-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 recommended
binlog_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 omitted
server-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 high
innodb_file_format=barracuda
innodb_file_format_max=barracuda
innodb_file_per_table=1
innodb_fast_shutdown=0
innodb_buffer_pool_size = 180000M
innodb_buffer_pool_instances = 4
中学生国旗下讲话稿#innodb_additional_mem_pool_size = 20M
#innodb_use_sys_malloc = 20M
# Set .._log_file_size to 25 % of buffer pool size
innodb_log_file_size = 512M
#innodb_log_buffer_size = 8M
innodb_log_files_in_group = 3
innodb_flush_log_at_trx_commit = 2
innodb_lock_wait_timeout = 3
innodb_rollback_on_timeout = on
innodb_flush_method=O_DIRECT
transaction-isolation=READ-COMMITTED
innodb_thread_concurrency=0
innodb_io_capacity=800
innodb_purge_threads=1
innodb_open_files=65535
#innodb_stats_update_need_lock=0
#innodb_flush_neighbor_pages=0
#innodb_aio_pending_ios_per_thread=256
#for binlog_format=row
innodb_autoinc_lock_mode=2
#innodb_fast_checksum = 1
innodb_read_io_threads = 8
innodb_write_io_threads = 12
innodb_stats_on_metadata = 0
#使⽤线程池处理连接
thread_handling=pool-of-threads
thread_pool_oversubscribe=30
thread_pool_size=64
thread_pool_idle_timeout=7200
thread_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'好听男孩的名字
#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]
quick
max_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 = 256M
sort_buffer_size = 256M
read_buffer = 2M
write_buffer = 2M
[isamchk]
key_buffer_size = 256M
sort_buffer_size = 256M
read_buffer = 2M
write_buffer = 2M
[mysqlhotcopy]
interactive-timeout
作者：若有所思11
冲出亚马逊演员表链接：www.jianshu/p/ac05107db343
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