1、下载软件

使用本地已下好的包 用rz上传至linux

安装上传包：yum -y install lrzsz

rz 选择mysql-5.6.23-linux-glibc2.5-x86_64.tar.gz上传
2、查看是否安装

ps -ef|grep mysqld

3、查看是否有rpm包

rpm -qa |grep -i mysql
4、解压并移动到mysql目录

tar xzvf mysql-5.6.23-linux-glibc2.5-x86_64.tar.gz

mv mysql-5.6.23-linux-glibc2.5-x86_64 mysql
5、创建用户和组

新建dba组：groupadd -g 101 dba

创建用户并添加dba组：useradd -u 514 -g dba -G root -d /usr/local/mysql mysqladmin

ps：生产环境中一般不会给root权限

先申请sudo权限，再创建一个mysql服务的管理用户

创建mysqladmin作用：1、一个用户只对一个组件 2、dba组
6、修改密码

passwd mysqladmin
7、拷贝配置文件到mysqladmin用户的家目录

cp /etc/skel/.* /usr/local/mysql
8、配置/etc/my.cnf：直接覆盖

vi /etc/my.cn 先dg 在黏贴

[client]

port = 3306

socket = /usr/local/mysql/data/mysql.sock

[mysqld]

port = 3306

socket = /usr/local/mysql/data/mysql.sock

skip-external-locking

key_buffer_size = 256M

sort_buffer_size = 2M

read_buffer_size = 2M

read_rnd_buffer_size = 4M

query_cache_size= 32M

max_allowed_packet = 16M

myisam_sort_buffer_size=128M

tmp_table_size=32M

table_open_cache = 512

thread_cache_size = 8

wait_timeout = 86400

interactive_timeout = 86400

max_connections = 600

Try number of CPU's*2 for thread_concurrency

thread_concurrency = 32

isolation level and default engine

default-storage-engine = INNODB

transaction-isolation = READ-COMMITTED

server-id = 1

basedir = /usr/local/mysql

datadir = /usr/local/mysql/data

pid-file = /usr/local/mysql/data/hostname.pid

open performance schema

log-warnings

sysdate-is-now

binlog_format = MIXED

log_bin_trust_function_creators=1

log-error = /usr/local/mysql/data/hostname.err

log-bin=/usr/local/mysql/arch/mysql-bin

other logs

general_log =1

general_log_file = /usr/local/mysql/data/general_log.err

slow_query_log=1

slow_query_log_file=/usr/local/mysql/data/slow_log.err

for replication slave

log-slave-updates

sync_binlog = 1

for innodb options

innodb_data_home_dir = /usr/local/mysql/data/

innodb_data_file_path = ibdata1:500M:autoextend

innodb_log_group_home_dir = /usr/local/mysql/arch

innodb_log_files_in_group = 2

innodb_log_file_size = 200M

innodb_buffer_pool_size = 2048M

innodb_additional_mem_pool_size = 50M

innodb_log_buffer_size = 16M

innodb_lock_wait_timeout = 100

innodb_thread_concurrency = 0

innodb_flush_log_at_trx_commit = 1

innodb_locks_unsafe_for_binlog=1

innodb io features: add for mysql5.5.8

performance_schema

innodb_read_io_threads=4

innodb-write-io-threads=4

innodb-io-capacity=200

purge threads change default(0) to 1 for purge

innodb_purge_threads=1

innodb_use_native_aio=on

case-sensitive file names and separate tablespace

innodb_file_per_table = 1

lower_case_table_names=1

[mysqldump]

quick

max_allowed_packet = 16M

[mysql]

no-auto-rehash

[mysqlhotcopy]

interactive-timeout

[myisamchk]

key_buffer_size = 256M

sort_buffer_size = 256M

read_buffer = 2M

write_buffer = 2M

修改innodb_buffer_pool_size = 2048M为1024M
9、修改配置文件及mysql目录的权限及所有人/组

修改配置文件：chown mysqladmin:dba /etc/my.cnf chmod 640 /etc/my.cnf

修改目录：chown -R mysqladmin:dba /usr/local/mysql chmod -R 755 /usr/local/mysql
10、切换到mysqladmin用户

su - mysqldamin
11、查看当前路径 新建归档目录

pwd /usr/local/mysql

mkdir arch
12、安装

scripts/mysql_install_db --user=mysqladmin --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data
13、配置mysql服务，并改为开机启动

1.root用户先切换到mysql根目录 cd /usr/local/mysql

2.root用户下将服务文件拷贝到init.id下，并重命名为mysql cp support-files/mysql.server /etc/rc.d/init.d/mysql

3.赋予可执行权限： chmod +x /etc/rc.d/init.d/mysql

4.添加服务 ： chkconfig --add mysql

5.设置开机启动： chkconfig --level 345 mysql on
14、启动mysql并查看流程和监听

1.切换用户：su - mysqladmin

2.rm -rf my.cnf

bin/mysqld_safe &

3.查看进程及端口号

ps -ef|grep mysqld

netstat -tulnp | grep mysql
15、查看mysql服务

service mysql status
16、登录mysql

[mysqladmin@hadoop001 ~]$ mysql

mysql>
17、查看数据库

mysql>show databases;

+--------------------+

| Database |

+--------------------+

| information_schema |

| mysql |

| performance_schema |

| test |

+--------------------+

4 rows in set (0.02 sec)
18、更新密码及清除用户

1.进入数据库mysql：

use mysql

Database changed

2.查看用户表：select host,user,password from user;

+-----------+------+----------+

| host | user | password |

+-----------+------+----------+

| localhost | root | |

| hadoop001 | root | |

| 127.0.0.1 | root | |

| ::1 | root | |

| localhost | | |

| hadoop001 | | |

+-----------+------+----------+

6 rows in set (0.00 sec)

3.更新root用户密码为‘123456’：update user set password=password('123456') where user='root';

Query OK, 4 rows affected (0.02 sec)

Rows matched: 4 Changed: 4 Warnings: 0

4.再次查看用户表：select host,user,password from user;

+-----------+------+-------------------------------------------+

| host | user | password |

+-----------+------+-------------------------------------------+

| localhost | root | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 |

| hadoop001 | root | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 |

| 127.0.0.1 | root | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 |

| ::1 | root | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 |

| localhost | | |

| hadoop001 | | |

+-----------+------+-------------------------------------------+

6 rows in set (0.00 sec)

密码已更新
19、MySQL重新部署

1. rm -rf arch/* data/* 删除归档文件及数据文件

2. scripts/mysql_install_db --user=mysqladmin --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data 重新部署
   20、修改% 任意机器可访问

update mysql.user set Host='%' where Host='hadoop000';

flush privileges;

安装dbeaver 工具链接 即可连接到数据库
21、mysql命令参数

mysql -uroot -p123456

mysql -u root -p123456

mysql -u root -p 123456 不可以（空格会代表一位密码）

mysql -u root -p123456 -h192.168.137.251

mysql -u root -p123456 -hlocalhost mysql
22、创建数据库及用户

create database ruozedb; 创建数据库

grant all privileges on ruozedb.* to hutu@'192.167.137.2' identified by '123456'; 新建账号密码并授权

flush privileges; dbeaver登录
23、查看进程

show processlist；
24、杀死进程

kill id（没有-9）

作者：糊涂蟲
链接：https://www.jianshu.com/p/db55504617bc
來源：简书
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