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
