基础环境
操作系统：redhat6.7
mysql版本：5.6.25
1、下载
链接：https://pan.baidu.com/s/133DDN9UIoVeqoc__8DuF7Q 密码：vm83
2、解压
mkdir -p /usr/local/mysql
mkdir -p /data/mysql/{data,log,tmp}
chown -R mysql:mysql /data/mysql
chown -R mysql:mysql /usr/local/mysql
tar -zxvf mysql-5.6.25-linux-glibc2.5-x86_64.tar.gz -C /tmp
cp -r /tmp/mysql-5.6.25-linux-glibc2.5-x86_64 /usr/local/mysql
3、添加用户、用户组、授权
groupadd mysql
useradd -g mysql mysql
4、安装
cd /usr/local/mysql/
./scripts/mysql_install_db --user=mysql --datadir=/mysql/data/mysql --basedir=/usr/local/mysql
cp support-files/mysql.server /etc/init.d/mysqld
chmod 755 /etc/init.d/mysqld
cp support-files/my-default.cnf /etc/my.cnf
5、配置启动脚本
#修改启动脚本
vim /etc/init.d/mysqld
#修改项：
basedir=/usr/local/mysql/
datadir=/data/mysql
6、配置系统变量
vim /etc/profile
export PATH=$PATH:/usr/local/mysql/bin
./bin/mysql -uroot #测试连接
service mysqld start #启动mysql
service mysqld stop #关闭mysql
service mysqld status #查看运行状态
./bin/mysql -uroot #修改root密码
SET PASSWORD FOR 'root'@'%' = PASSWORD('123456');
flush privileges;
6、调优
#修改配置文件/etc/my.cnf
default-character-set=utf8
port= 3306
socket= /tmp/mysql.sock
[mysqld]
server-id = 2018061301
user = mysql
port = 3306
basedir = /usr/local/mysql
datadir = /data/mysql
socket = /tmp/mysql.sock
event_scheduler = 0
lower_case_table_names = 1
character-set-server = utf8
transaction-isolation = REPEATABLE-READ
skip_name_resolve
max_connect_errors = 100000
max_connections = 2048
skip-external-locking
max_allowed_packet = 1G
tmpdir = /data/mysql/tmp
wait_timeout = 3600
interactive_timeout = 3600
explicit_defaults_for_timestamp = 1
#########innodb###############
innodb_buffer_pool_size = 8G
innodb_file_per_table = 1
innodb_data_home_dir = /data/mysql/data
innodb_log_group_home_dir = /data/mysql/data
innodb_log_files_in_group = 3
innodb_log_file_size = 128M
innodb_log_buffer_size = 32M
innodb_flush_log_at_trx_commit = 2
innodb_lock_wait_timeout = 50
innodb_flush_method = O_DIRECT
innodb_io_capacity = 200
innodb_io_capacity_max = 400
innodb_flush_neighbors = 1
innodb_thread_concurrency = 64
innodb_sort_buffer_size = 64M
innodb_file_format = Barracuda
innodb_file_format_max = Barracuda
#########buffer and cache ######
key_buffer_size = 256M
bulk_insert_buffer_size = 64M
myisam_sort_buffer_size = 128M
myisam_max_sort_file_size = 1G
read_buffer_size = 4M
read_rnd_buffer_size = 8M
sort_buffer_size = 8M
join_buffer_size = 8M
open_files_limit = 65535
table_open_cache= 512
tmp_table_size = 256M
max_heap_table_size = 256M
thread_cache_size = 1024
thread_stack = 256K
##########log##################
slow_query_log=1
slow_query_log_file =/data/mysql/logs/mysql-slow.log
long_query_time = 2
log-error=/data/mysql/logs/mysql.err
log_warnings = 2
expire_logs_days = 7
############replication###############
slave-skip-errors = 1032
replicate_ignore_db = information_schema
replicate_ignore_db = mysql
replicate_ignore_db = performance_schema
replicate_ignore_db = test
log-bin=/data/mysql/logs/mysql-bin
max_binlog_size = 1G
binlog_cache_size = 4M
max_binlog_cache_size = 2G
binlog_format = row
relay_log = /data/mysql/logs/mysql-relay-bin
relay_log_index = /data/mysql/logs/mysql-relay-bin.index
max_relay_log_size = 1G
relay_log_purge = 1
relay_log_recovery = 1
symbolic-links=0
sql-mode="NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"
[mysqld_safe]
log-error=/data/mysql/logs/mysql-error-log.err
pid-file=/data/mysql/data/mysql.pid
