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linux 安装 mysql 记录
-
上传 mysql 安装包到 /usr/local 下
-
创建 mysql 用户
useradd mysql
修改mysql密码
passwd mysql
-
解压安装包
tar -zxvf mysql-5.7.18-linux-glibc2.5-x86_64.tar.gz
mv mysql-5.7.18-linux-glibc2.5-x86_64 mysql
- 修改 mysql 目录权限
chown -R mysql:mysql mysql
- 创建数据和日志目录
mkdir -p /var/lib/mysql/data /var/lib/mysql/logs /var/lib/mysql/backup /var/lib/mysql/script
- 修改目录权限
chown -R mysql:mysql /var/lib/mysql
- 初始化 mysql
/usr/local/mysql/bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/var/lib/mysql/data
- 将 mysql 添加到服务
cp /usr/local/mysql/supports/mysql.server /etc/init.d/mysqld
chkconfig --add mysqld
chkconfig mysqld off
chkconfig --levels 35 mysqld on
- 编辑 /etc/my.cnf
示例：
[client]
#client character set
default_character_set = utf8
#default login user
user = root
#default password
password = 123
[mysqld]
#########genarel config##########
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
#the user runnging mysqld process
user = mysql
#base directory
basedir=/usr/local/mysql
#data directory
datadir=/var/lib/mysql/data
#db server character set
character_set_server = utf8
#default engine
default_storage_engine = innodb
#server id
server_id = 1
#service port
port = 3306
#max connections
max_connections = 1000
#skip resolve name
skip_name_resolve = on
#pid file's directory
pid_file = /var/lib/mysql/logs/mysql.pid
######log part####
#swith on genarel log
general_log = on
#name and directory of genarel log
general_log_file = /var/lib/mysql/logs/m2.general
#swith on binnary log and set the file
log_bin = /var/lib/mysql/logs/m2.bin
#index of bannary log
log_bin_index = /var/lib/mysql/logs/m2-bin.index
#swith bannary log
slow_query_log = on
#name and directory of slow query log
slow_query_log_file = /var/lib/mysql/logs/m2.slow
#the unit of slow log ，second
slow_launch_time=2
#error log setting
log_error = /var/lib/mysql/logs/m2.err
expire_logs_days = 14
######innodb setting ######
#innodb memory size，byte
innodb_buffer_pool_size=512M
#innodb instance number
innodb_buffer_pool_instances=8
#dump cache from memory to disk when server shutdown
innodb_buffer_pool_dump_at_shutdown=on
#record page cache immediate
innodb_buffer_pool_dump_now=on
#import cache from disk to memory when server startup
innodb_buffer_pool_load_at_startup=on
#immediate cache buffer_pool
innodb_buffer_pool_load_now=on
#log buffer 8M to 32M
innodb_log_buffer_size=8M
#the size of binnary log
innodb_log_file_size=100M
#the action of write log to disk:0--flush per second;1--flush on tranction commit(default); 2--0 and 1
innodb_flush_log_at_trx_commit=1
######MyIsam setting######
key_buffer_size=128M
read_buffer_size=256K
read_rnd_buffer_size=256K
sort_buffer_size=256K
join_buffer_size=256K
- 将 mysql 下的 bin 目录添加到 PATH 环境变量中
vi /etc/profile
在文件的结尾输入
PATH=/usr/local/mysql/bin:$PATH
source /etc/profile
- 启动mysql服务
service mysqld start
- 登陆mysql并修改root用户密码
mysql -u root -p
输入初始化时生成的随机密码
alter user 'root'@'localhost' identified by '123';
- 安装完成