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
