mysql实现主从复制
实验环境：
server5：主
server6：从
server7：从
iptabls offselinux Disabled12345
安装mysql
*先查看是否有其它版本的,若有，则先卸载
[root@server5 ~]# rpm -qa | grep mysqlmysql-libs-5.1.71-1.el6.x86_64
[root@server5 ~]# rpm -e mysql-libs-5.1.71-1.el6.x86_64error: Failed dependencies:
libmysqlclient.so.16()(64bit) is needed by (installed) postfix-2:2.6.6-2.2.el6_1.x86_64
libmysqlclient.so.16(libmysqlclient_16)(64bit) is needed by (installed) postfix-2:2.6.6-2.2.el6_1.x86_64
mysql-libs is needed by (installed) postfix-2:2.6.6-2.2.el6_1.x86_64
[root@server5 ~]# rpm -e --nodeps mysql-libs-5.1.71-1.el6.x86_64[root@server5 ~]# rpm -qa | grep mysql[root@server5 ~]# 1234567891011
*安装mysql
[root@server5 ~]# tar zxf mysql-5.7.17-1.el6.x86_64.rpm-bundle.tar gzip: stdin: not in gzip formattar: Child returned status 1tar: Error is not recoverable: exiting now
[root@server5 ~]# tar xf mysql-5.7.17-1.el6.x86_64.rpm-bundle.tar #注意顺序[root@server5 ~]# rpm -ivh mysql-community-common-5.7.17-1.el6.x86_64.rpm[root@server5 ~]# rpm -ivh mysql-community-libs-5.7.17-1.el6.x86_64.rpm [root@server5 ~]# rpm -ivh mysql-community-devel-5.7.17-1.el6.x86_64.rpm[root@server5 ~]# yum install libaio -y[root@server5 ~]# yum install numactl -y[root@server5 ~]# rpm -ivh mysql-community-client-5.7.17-1.el6.x86_64.rpm[root@server5 ~]# rpm -ivh mysql-community-server-5.7.17-1.el6.x86_64.rpmwarning: mysql-community-server-5.7.17-1.el6.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEYerror: Failed dependencies:
/usr/bin/perl is needed by mysql-community-server-5.7.17-1.el6.x86_64
perl(File::Path) is needed by mysql-community-server-5.7.17-1.el6.x86_64
perl(Getopt::Long) is needed by mysql-community-server-5.7.17-1.el6.x86_64
perl(POSIX) is needed by mysql-community-server-5.7.17-1.el6.x86_64
perl(strict) is needed by mysql-community-server-5.7.17-1.el6.x86_64
[root@server5 ~]# yum install perl -y[root@server5 ~]# rpm -ivh mysql-community-server-5.7.17-1.el6.x86_64.rpm[root@server5 ~]# 123456789101112131415161718192021222324
*在server5：master
[root@server5 ~]# vim /etc/my.cnf.....
log-bin=mysql-bin
binlog-do-db=test
server-id=1binlog-ignore-db=mysql
.....
[root@server5 ~]# /etc/init.d/mysqld startInitializing MySQL database: [ OK ]
Installing validate password plugin: [ OK ]
Starting mysqld: [ OK ]
[root@server5 ~]#[root@server5 ~]# cat /var/log/mysqld.log | grep pass #过滤初始密码2017-06-13T01:22:16.400573Z 1 [Note] A temporary password is generated for root@localhost: M.uepxaHq3oI
[root@server5 ~]# mysql_secure_installation #修改mysql默认root密码[root@server5 ~]# mysql -uroot -pXiamin+0099mysql> GRANT REPLICATION SLAVE,RELOAD,SUPER ON *.* TO westos@'172.25.66.7'
-> IDENTIFIED BY 'Xiamin+0099'; #创建账户并给与权限Query OK, 0 rows affected, 1 warning (0.07 sec)
mysql> Flush privileges;
Query OK, 0 rows affected (0.12 sec)
mysql> quit
Bye
[root@server5 ~]#12345678910111213141516171819202122232425262728
*在server7：slave
[root@server7 ~]# vim /etc/my.cnf.....
server-id=2
.....[root@server7 ~]# /etc/init.d/mysqld start
Initializing MySQL database: [ OK ]
Installing validate password plugin: [ OK ]
Starting mysqld: [ OK ]
[root@server5 ~]#
[root@server7 ~]# mysql_secure_installation
[root@server7 ~]# mysql -uroot -pXiamin+0099
(此时需要先stop slave)
mysql> change master to master_host='172.25.66.5', master_user='westos', -> master_password='Xiamin+0099', master_log_file='mysql-bin.000005', master_log_pos=616;Query OK, 0 rows affected, 2 warnings (0.50 sec)
mysql> start slave;
Query OK, 0 rows affected (0.06 sec)
mysql> show slave status\G;.....
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
.....mysql> quit
Bye
[root@server7 ~]# 12345678910111213141516171819202122232425262728
测试：
在master中新建test库
[root@server5 ~]# mysql -uroot -pXiamin+0099.....
mysql> show databases;
+--------------------+| Database |
+--------------------+| information_schema |
| mysql |
| performance_schema |
| sys |
+--------------------+4 rows in set (0.07 sec)
mysql> create database test;
Query OK, 1 row affected (0.08 sec)
mysql> show databases;
+--------------------+| Database |
+--------------------+| information_schema |
| mysql |
| performance_schema |
| sys |
| test |
+--------------------+5 rows in set (0.00 sec)
mysql> use test
Database changed
mysql> create table MyClass(
-> id int(4) not null primary key auto_increment,
-> name char(20) not null,
-> sex int(4) not null default '0',
-> degree double(16,2));
Query OK, 0 rows affected (1.20 sec)
mysql> show tables;
+----------------+| Tables_in_test |
+----------------+| MyClass |
+----------------+1 row in set (0.00 sec)
mysql> show processlist;
+----+--------+---------------+------+-------------+-------+---------------------------------------------------------------+------------------+| Id | User | Host | db | Command | Time | State | Info |
+----+--------+---------------+------+-------------+-------+---------------------------------------------------------------+------------------+| 3 | westos | server7:50403 | NULL | Binlog Dump | 17034 | Master has sent all binlog to slave; waiting for more updates | NULL |
| 14 | root | localhost | NULL | Query | 0 | starting | show processlist |
+----+--------+---------------+------+-------------+-------+---------------------------------------------------------------+------------------+2 rows in set (0.00 sec)
mysql> quit
Bye
.....
[root@server5 ~]# 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859
在slave上查看
[root@server7 ~]# mysql -uroot -pXiamin+0099.....
mysql> show databases;
+--------------------+| Database |
+--------------------+| information_schema |
| mysql |
| performance_schema |
| sys |
| test |
+--------------------+5 rows in set (0.00 sec)
mysql> use test
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql> show tables;
+----------------+| Tables_in_test |
+----------------+| MyClass |
+----------------+1 row in set (0.00 sec)
mysql> show processlist;
+----+-------------+-----------+------+---------+-------+--------------------------------------------------------+------------------+| Id | User | Host | db | Command | Time | State | Info |
+----+-------------+-----------+------+---------+-------+--------------------------------------------------------+------------------+| 1 | system user | | NULL | Connect | 1894 | Slave has read all relay log; waiting for more updates | NULL |
| 2 | system user | | NULL | Connect | 16880 | Waiting for master to send event | NULL |
| 10 | root | localhost | NULL | Query | 0 | starting | show processlist |
+----+-------------+-----------+------+---------+-------+--------------------------------------------------------+------------------+3 rows in set (0.00 sec)
mysql> quit
Bye
.....
[root@server7 ~]#
