上次给大家介绍了mysql 5.1主从搭建配置教程,这次我们来实现mysql 5.5的主从复制,其实大体上配置是差不多的,只有点细微的差别.
系统:centos 5.x,需要的软件包:mysql-5.5.33.tar.gz
环境准备:服务器a:192.168.10.151 (主),服务器b:192.168.10.152 (从)
1.安装前准备
- wget http://mysql.llarian.net/Downloads/MySQL-5.5/mysql-5.5.33.tar.gz
- yum -y install gcc gcc-c++ libtool-libs autoconf freetype-devel gd libjpeg-devel
- libpng-devel libxml2-devel ncurses-devel zlib-devel zip unzip curl-devel wget crontabs
- file bison cmake patch mlocate flex diffutils automake make kernel-devel cpp
- readline-devel openssl-devel vim-minimal glibc-devel glib2-devel
- bzip2-devel e2fsprogs-devel libidn-devel gettext-devel expat-devel
- libcap-devel libtool-ltdl-devel pam-devel pcre-devel libmcrypt-devel
2.在服务器a上安装mysql
- tar zxf mysql-5.5.33.tar.gz && cd mysql-5.5.33
- /usr/sbin/groupadd mysql
- /usr/sbin/useradd -g mysql mysql
- cmake -DCMAKE_INSTALL_PREFIX=/usr/local/mysql -DMYSQL_UNIX_ADDR=/tmp/mysql.sock -DDEFAULT_CHARSET=utf8 -DDEFAULT_COLLATION=utf8_general_ci -DWITH_EXTRA_CHARSETS=complex -DWITH_READLINE=1 -DENABLED_LOCAL_INFILE=1
- make
- make install
- chmod +w /usr/local/mysql
- chown -R mysql:mysql /usr/local/mysql
- cd support-files/
- cp my-medium.cnf /etc/my.cnf
- cp -f mysql.server /etc/rc.d/init.d/mysqld
- mkdir /var/lib/mysql
- /usr/local/mysql/scripts/mysql_install_db
- chmod +x /etc/rc.d/init.d/mysqld
- chkconfig
- chkconfig mysqld on
- cat > /etc/ld.so.conf.d/mysql.conf<<EOF
- /usr/local/mysql/lib/mysql
- /usr/local/lib
- EOF
- ldconfig
如果你是在64位机器上的话,那你就执行下面这个命令:
ln -s /usr/local/mysql/lib/mysql /usr/lib64/mysql
如果你是在32位机器上的话,那就执行下面的命令:
ln -s /usr/local/mysql/lib/mysql /usr/lib/mysql
然后再执行:
- ln -s /usr/local/mysql/bin/mysql /usr/bin
- ln -s /usr/local/mysql/bin/mysqladmin /usr/bin
- ln -s /usr/local/mysql/bin/mysqldump /usr/bin
- service mysqld start
- mysqladmin -u root password 'password'
当然如果大家觉得编译安装mysql很麻烦的话,那么可以去看看这篇文章安装mysql5.5二进制包,服务器b安装mysql配置跟服务器a一样,这里就不说了.
3.配置主从,在服务器a上:
- vi /etc/my.cnf
- [mysqld]
- log-bin=master-bin
- log-bin-index=master-bin.index
- server-id = 1
- innodb_file_per_table = 1
- binlog_format=mixed
授权复制用户:
- mysql -u root -p
- grant replication slave on *.* to 'dbmysql'@'%' identified by '123456';
- flush privileges;
重启mysql:service mysqld restart
在服务器b上:
- vi /etc/my.cnf
- [mysqld]
- relay-log = relay-log
- relay-log-index = relay-log.index
- server-id = 2
- innodb_file_per_table = 1
- binlog_format=mixed
然后重启mysql:service mysqld restart
服务器b连接连接主服务器并复制,先在服务器a上查看master的状态:
- mysql> show master status;
- +
- | File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
- +
- | master-bin.000001 | 107 | | |
- +
- 1 row in set (0.00 sec)
然后在服务器b上进行连接:
- mysql> change master to master_host='192.168.10.151',master_user='dbmysql',maste
- r_password='123456',master_log_file='master-bin.000001',master_log_pos=107;
查看一下slave状态,代码如下:
- mysql> show slave statusG
- *************************** 1. row ***************************
- Slave_IO_State:
- Master_Host: 192.168.10.151
- Master_User: dbmysql
- Master_Port: 3306
- Connect_Retry: 60
- Master_Log_File: master-bin.000001
- Read_Master_Log_Pos: 107
- Relay_Log_File: localhost-relay-bin.000001
- Relay_Log_Pos: 4
- Relay_Master_Log_File: master-bin.000001
- Slave_IO_Running: No
- Slave_SQL_Running: No
- Replicate_Do_DB:
- Replicate_Ignore_DB:
- Replicate_Do_Table:
- Replicate_Ignore_Table:
- Replicate_Wild_Do_Table:
- Replicate_Wild_Ignore_Table:
- Last_Errno: 0
- Last_Error:
- Skip_Counter: 0
- Exec_Master_Log_Pos: 107
- Relay_Log_Space: 107
- Until_Condition: None
- Until_Log_File:
- Until_Log_Pos: 0
- Master_SSL_Allowed: No
- Master_SSL_CA_File:
- Master_SSL_CA_Path:
- Master_SSL_Cert:
- Master_SSL_Cipher:
- Master_SSL_Key:
- Seconds_Behind_Master: NULL
- Master_SSL_Verify_Server_Cert: No
- Last_IO_Errno: 0
- Last_IO_Error:
- Last_SQL_Errno: 0
- Last_SQL_Error:
- Replicate_Ignore_Server_Ids:
- Master_Server_Id: 0
- 1 row in set (0.00 sec)
启动slave再查看:
- mysql> start slave;
- Query OK, 0 rows affected (0.01 sec)
- mysql> show slave statusG
- *************************** 1. row ***************************
- Slave_IO_State: Connecting to master
- Master_Host: 192.168.10.151
- Master_User: dbmysql
- Master_Port: 3306
- Connect_Retry: 60
- Master_Log_File: master-bin.000001
- Read_Master_Log_Pos: 107
- Relay_Log_File: localhost-relay-bin.000001
- Relay_Log_Pos: 4
- Relay_Master_Log_File: master-bin.000001
- Slave_IO_Running: Connecting
- Slave_SQL_Running: Yes
- Replicate_Do_DB:
- Replicate_Ignore_DB:
- Replicate_Do_Table:
- Replicate_Ignore_Table:
- Replicate_Wild_Do_Table:
- Replicate_Wild_Ignore_Table:
- Last_Errno: 0
- Last_Error:
- Skip_Counter: 0
- Exec_Master_Log_Pos: 107
- Relay_Log_Space: 107
- Until_Condition: None
- Until_Log_File:
- Until_Log_Pos: 0
- Master_SSL_Allowed: No
- Master_SSL_CA_File:
- Master_SSL_CA_Path:
- Master_SSL_Cert:
- Master_SSL_Cipher:
- Master_SSL_Key:
- Seconds_Behind_Master: NULL
- Master_SSL_Verify_Server_Cert: No
- Last_IO_Errno: 2003
- Last_IO_Error: error connecting to master 'dbmysql@192.168.10.151:3306' - retry-time: 60 retries: 86400
- Last_SQL_Errno: 0
- Last_SQL_Error:
- Replicate_Ignore_Server_Ids:
- Master_Server_Id: 0
- 1 row in set (0.00 sec)
看到上面错误了没,说明mysql主和从服务器的防火墙没有开放3306端口,去服务器a和服务器b上把3306端口打开,再来查看mysql从的状态,代码如下:
- mysql> show slave statusG
- *************************** 1. row ***************************
- Slave_IO_State: Waiting for master to send event
- Master_Host: 192.168.10.151
- Master_User: dbmysql
- Master_Port: 3306
- Connect_Retry: 60
- Master_Log_File: master-bin.000001
- Read_Master_Log_Pos: 107
- Relay_Log_File: relay-log.000011
- Relay_Log_Pos: 254
- Relay_Master_Log_File: master-bin.000001
- Slave_IO_Running: Yes
- Slave_SQL_Running: Yes
- Replicate_Do_DB:
- Replicate_Ignore_DB:
- Replicate_Do_Table:
- Replicate_Ignore_Table:
- Replicate_Wild_Do_Table:
- Replicate_Wild_Ignore_Table:
- Last_Errno: 0
- Last_Error:
- Skip_Counter: 0
- Exec_Master_Log_Pos: 107
- Relay_Log_Space: 404
- Until_Condition: None
- Until_Log_File:
- Until_Log_Pos: 0
- Master_SSL_Allowed: No
- Master_SSL_CA_File:
- Master_SSL_CA_Path:
- Master_SSL_Cert:
- Master_SSL_Cipher:
- Master_SSL_Key:
- Seconds_Behind_Master: 0
- Master_SSL_Verify_Server_Cert: No
- Last_IO_Errno: 0
- Last_IO_Error:
- Last_SQL_Errno: 0
- Last_SQL_Error:
- Replicate_Ignore_Server_Ids:
- Master_Server_Id: 1
- 1 row in set (0.00 sec)
好了,可以看到Slave_IO_Running和Slave_SQL_Running都是yes了,下面也没有error提示了.
4.验证,在mysql主上创建个数据库.
mysql> create database emlog;
Query OK, 1 row affected (0.01 sec)
再在mysql从上查看是否有这个数据库,代码如下:
- mysql> show databases;
- +
- | Database |
- +
- | information_schema |
- | emlog |
- | mysql |
- | performance_schema |
- | test |
- +
- 5 rows in set (0.02 sec)
可以看到已经同步复制过来了,mysql主从搭建成功. |