mysql主从复制

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2024-11-15 18:22:39 202人阅读

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;

+----+--------+---------------+------+-------------+-------+---------------------------------------------------------------+------------------+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;

+----+-------------+-----------+------+---------+-------+--------------------------------------------------------+------------------+3 rows in set (0.00 sec)

mysql> quit

Bye

.....

[root@server7 ~]#

mysql主从复制

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