Mysql主从复制的实现
MySQL是一个开放源码的小型关联式数据库管理系统，开发者为瑞典MySQL AB公司。MySQL被广泛地应用在Internet上的中小型网站中。由于其体积小、速度快、总体拥有成本低，尤其是开放源码这一特点，许多中小型网站为了降低网站总体拥有成本而选择了MySQL作为网站数据库。Mysql内建的复制功能是构建大型、高性能应用程序的基础；将Mysql的数据分布到多个系统上，而这种分布的机制是通过将一台Mysql服务器的数据复制到其他主机(slave)上，由slave主机读取Master服务器的二进制日志文件然后重新在本地执行一遍来实现。做Mysql主从复制时，所有更新操作都只能在Master服务器，而Slave服务只负责更新自己的数据并提供查询操作。
Mysql复制主要能解决的有问题有：数据的分布、负载均衡、数据备份、高可用以及容错性。
Mysql的复制原理基本上可以分为以下3步：
1.在Master服务器将改变的数据记录到二进制日志(binary log)中（这些记录叫做二进制日志事件）
2.Slave服务器将Master服务器上的二进制日志拷贝到自己的中继日志(relay-log)中
3.Slave服务器读取中继日志中的事件，然后将改变的数据写入到自己的数据库中
第1步：在Master服务器上记录二进制日志。在每个更新数据的事务完成之前，Master服务器都会将数据更改记录到二进制日志中。即使事务在执行期间是交错的，Mysql也会串行地将事务写入到二进制日志中。在把事件写入二进制日志之后，Master服务器告诉存储引擎可以提交事务了
第2步：Slave服务器把主服务器的二进制日志拷贝到自己的硬盘上，进入所谓的“中继日志”中。首先，它启动一个工作线程，叫I/O线程，这个I/O线程开启一个普通的客户端连接，然后启动一个特殊的二进制日志转储进程（它没有相应的SQL命令）。这个转储进程Master服务器的二进制日志中读取数据。它不会对事件进行轮询。如果3跟上了Master服务器，就会进入休眠状态并等待有新的事件发生时Master服务器发出的信号。I/O线程把数据写入Slave服务器的中继日志中
第3步：SQL线程读取中继日志，并且重放其中的事件，然后更新Slave服务器的数据。由于这个线程能跟上I/O线程，中继日志通常在操作系统的缓存中，所以中继日志的开销很低。SQL线程执行事件也可以被写入Slave服务器自己的二进制日志中，它对于有些场景很实用
上图中显示了在Slave服务器有两个运行的线程，在Master服务器上也有一个运行的线程：和其他普通连接一样，由Slave服务器发起的连接，在Master服务器上同样拥有一个线程。
系统环境及拓扑
系统版本：CentOS 6.3_x86_64
Mysql版本：mysql-5.6.17
下载地址：http://cdn.mysql.com/Downloads/MySQL-5.6/mysql-5.6.17.tar.gz
1.准备工作
1.1修改master、slave主机名
master主机名:mysql_master
slave主机名：mysql_slave
1.2在master和slave上配置主机名解析
# cat >> /etc/hosts << EOF 172.16.10.72 mysql_master master 172.16.10.61 mysql_slave slave EOF
1.3时间同步
# yum install -y ntpdate # ntpdate ntp.fudan.edu.cn # crontab -e 1 * * * * /usr/sbin/ntpdate ntp.fudan.edu.cn
2.安装Mysql（master与slave分别进行）
# groupadd mysql # useradd -s /sbin/nologin -g mysql mysql # tar xf mysql-5.6.17.tar.gz # cd mysql-5.6.17# cmake . -DCMAKE_INSTALL_PREFIX=/usr/local/mysql # make && make install# chown -R mysql.mysql /usr/local/mysql # cd /usr/local/mysql/scripts/ # ./mysql_install_db --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data #初始化mysql数据库，#指定mysql数据文件的存放位置 # cd .. # cd support-files/# cp mysql.server /etc/rc.d/init.d/mysql # cp my-default.cnf /etc/my.cnf # chkconfig --add mysql # chkconfig mysql on # service mysql start Starting MySQL..... SUCCESS!# ln -s /usr/local/mysql/bin/* /usr/bin/
cmake . -DCMAKE_INSTALL_PREFIX=/usr/local/mysql遇到报错如下：
- Could NOT find Curses (missing: CURSES_LIBRARY CURSES_INCLUDE_PATH) CMake Error at cmake/readline.cmake:85 (MESSAGE): Curses library not found. Please install appropriate package, remove CMakeCache.txt and rerun cmake.On Debian/Ubuntu, package name is libncurses5-dev, on Redhat and derivates it is ncurses-devel. Call Stack (most recent call first): cmake/readline.cmake:128 (FIND_CURSES) cmake/readline.cmake:202 (MYSQL_USE_BUNDLED_EDITLINE) CMakeLists.txt:411 (MYSQL_CHECK_EDITLINE) -- Configuring incomplete, errors occurred!
解决办法：
yum -y install ncurses-devel
find / -name CMakeCache.txt|xargs rm -f
然后重新执行cmake . -DCMAKE_INSTALL_PREFIX=/usr/local/mysql
3.配置主从复制
3.1在master上建立用于slave服务器复制数据的帐户
[root@mysql_master ~]# mysql mysql> GRANT REPLICATION SLAVE, REPLICATION CLIENT ON *.* to eivll0m@'172.16.10.61' IDENTIFIED by 'password'; Query OK, 0 rows affected (0.10 sec) mysql> FLUSH PRIVILEGES; Query OK, 0 rows affected (0.06 sec) mysql> SHOW GRANTS FOR eivll0m@'172.16.10.61'; +---------------------------------------------------------------------------------------------------------------------------------------------------+ | Grants for eivll0m@172.16.10.61 | +---------------------------------------------------------------------------------------------------------------------------------------------------+ | GRANT REPLICATION SLAVE, REPLICATION CLIENT ON *.* TO 'eivll0m'@'172.16.10.61' IDENTIFIED BY PASSWORD '*2470C0C06DEE42FD1618BB99005ADCA2EC9D1E19' | +---------------------------------------------------------------------------------------------------------------------------------------------------+ 1 row in set (0.02 sec)
3.2在Slave服务器上使用授权用户连接测试
[root@mysql_slave ~]# mysql -ueivll0m -ppassword -h 172.16.10.72 Warning: Using a password on the command line interface can be insecure. ERROR 2003 (HY000): Can't connect to MySQL server on '172.16.10.72' (113) #报错原因为master服务器iptables阻止了slave的连接，暂时先关闭即可 [root@mysql_slave ~]# mysql -ueivll0m -ppassword -h 172.16.10.72 Warning: Using a password on the command line interface can be insecure. Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 2 Server version: 5.6.17 Source distribution Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql>
3.3编辑master上的my.cnf，修改或增加以下内容：
basedir = /usr/local/mysql datadir = /usr/local/mysql/data port = 3306 server_id = 1 socket = /tmp/mysql.sock log-bin = mysql-bin log_bin_index = mysql_bin.index binlog_format = mixed innodb_flush_log_at_trx_commit=1
重启mysqld服务
[root@mysql_master ~]# service mysqld restart
3.4编辑slave上的my.cnf，修改或增加以下内容：
basedir = /usr/local/mysql datadir = /usr/local/mysql/data port = 3306 server_id = 2 socket = /tmp/mysql.sock skip_slave_start = 1 read_only = 1 relay_log = relay_log relay_log_index = relay_log.index
重启mysqld服务
[root@mysql_slave ~]# service mysqld restart
3.5.查看master服务器的二进制日志及二进制日志事件位置
[root@mysql_master ~]# mysql -e 'SHOW MASTER STATUS;' +------------------+----------+--------------+------------------+-------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set | +------------------+----------+--------------+------------------+-------------------+ | mysql-bin.000003 | 120 | | | | +------------------+----------+--------------+------------------+-------------------+
File：表示从此日志开始复制 Position：表示从这个事件开始复制3.6在Slave服务器上同步Master服务器上面的数据
mysql> CHANGE MASTER TO MASTER_HOST='mysql_master',MASTER_USER='eivll0m',MASTER_PASSWORD='password',MASTER_PORT=3306,MASTER_LOG_FILE='mysql-bin.000003',MASTER_LOG_POS=120,MASTER_CONNECT_RETRY=60;
3.7启动slave服务器的复制线程并查看状态
mysql> START SLAVE; mysql> SHOW SLAVE STATUS\G; *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: mysql_master Master_User: eivll0m Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000003 Read_Master_Log_Pos: 120 Relay_Log_File: relay_log.000002 Relay_Log_Pos: 283 Relay_Master_Log_File: mysql-bin.000003 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: 120 Relay_Log_Space: 450 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 Master_UUID: 988cd54d-c1a7-11e3-b1a5-000c29c976ef Master_Info_File: /usr/local/mysql/data/master.info SQL_Delay: 0 SQL_Remaining_Delay: NULL Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it Master_Retry_Count: 86400 Master_Bind: Last_IO_Error_Timestamp: Last_SQL_Error_Timestamp: Master_SSL_Crl: Master_SSL_Crlpath: Retrieved_Gtid_Set: Executed_Gtid_Set: Auto_Position: 0 1 row in set (0.00 sec)
3.8在slave服务器查看启动的线程
[root@mysql_slave ~]# mysql -e 'SHOW PROCESSLIST;' +----+-------------+-----------+------+---------+------+-----------------------------------------------------------------------------+------------------+ | Id | User | Host | db | Command | Time | State | Info | +----+-------------+-----------+------+---------+------+-----------------------------------------------------------------------------+------------------+ | 5 | system user | | NULL | Connect | 102 | Waiting for master to send event | NULL | | 6 | system user | | NULL | Connect | 102 | Slave has read all relay log; waiting for the slave I/O thread to update it | NULL | | 8 | root | localhost | NULL | Query | 0 | init | SHOW PROCESSLIST | +----+-------------+-----------+------+---------+------+-----------------------------------------------------------------------------+------------------+
3.9验证：在saster服务器创建数据库，在slave服务器上验证是否复制过去
[root@mysql_master ~]# mysql -e 'CREATE DATABASE eivll0m;' [root@mysql_master ~]# mysql -e 'SHOW DATABASES;' +--------------------+ | Database | +--------------------+ | information_schema | | eivll0m | | mysql | | performance_schema | | test | +--------------------+
[root@mysql_slave ~]# mysql -e 'SHOW DATABASES;' #可以看到eimll0m数据库已经复制过去 +--------------------+ | Database | +--------------------+ | information_schema | | eivll0m | | mysql | | performance_schema | | test | +--------------------+
3.10在主从服务器查看二进制日志事件位置是否更新
[root@mysql_master ~]# mysql -e 'SHOW MASTER STATUS;' +------------------+----------+--------------+------------------+-------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set | +------------------+----------+--------------+------------------+-------------------+ | mysql-bin.000003 | 223 | | | | +------------------+----------+--------------+------------------+-------------------+
[root@mysql_slave ~]# mysql -e 'SHOW SLAVE STATUS\G;' | grep "Read_Master_Log_Pos" Read_Master_Log_Pos: 223
由此可见，已经更新。
4.配置基于SSL的复制
由于Mysql的主从复制是明文传送的，如果在生产环境中跨网络使用主从还是明文传送，就无法保证数据的传输安全性，为了解决这一问题，我们需要加密进行传送，也就是基于SSL的加密方法进行传输数据。
4.1在master服务器搭建CA服务器
[root@mysql_master ~]# cd /etc/pki/CA/ [root@mysql_master CA]# (umask 077;openssl genrsa -out private/cakey.pem 2048) [root@mysql_master CA]# openssl req -new -x509 -key private/cakey.pem -out cacert.pem -days 365 You are about to be asked to enter information that will be incorporated into your certificate request. What you are about to enter is what is called a Distinguished Name or a DN. There are quite a few fields but you can leave some blank For some fields there will be a default value, If you enter '.', the field will be left blank. ----- Country Name (2 letter code) [XX]:CN State or Province Name (full name) []:BeiJing Locality Name (eg, city) [Default City]:ChaoYang Organization Name (eg, company) [Default Company Ltd]:eivll0m Organizational Unit Name (eg, section) []:Tech Common Name (eg, your name or your server's hostname) []:mysql_master Email Address []:master@eivll0m.com [root@mysql_master CA]# touch index.txt [root@mysql_master CA]# echo 01 > serial
4.2为master创建证书申请并由CA服务器签发证书
[root@mysql_master ~]# mkdir /usr/local/mysql/ssl [root@mysql_master ssl]# cd /usr/local/mysql/ssl [root@mysql_master ssl]# (umask 077;openssl genrsa -out master.key 2048) [root@mysql_master ssl]# openssl req -new -key master.key -out master.csr -days 365 You are about to be asked to enter information that will be incorporated into your certificate request. What you are about to enter is what is called a Distinguished Name or a DN. There are quite a few fields but you can leave some blank For some fields there will be a default value, If you enter '.', the field will be left blank. ----- Country Name (2 letter code) [XX]:CN State or Province Name (full name) []:BeiJing Locality Name (eg, city) [Default City]:ChaoYang Organization Name (eg, company) [Default Company Ltd]:eivll0m Organizational Unit Name (eg, section) []:Tech Common Name (eg, your name or your server's hostname) []:mysql_master Email Address []:master@eivll0m.com Please enter the following 'extra' attributes to be sent with your certificate request A challenge password []: An optional company name []:
[root@mysql_master ssl]# openssl ca -in master.csr -out master.crt -days 365 Using configuration from /etc/pki/tls/openssl.cnf Check that the request matches the signature Signature ok Certificate Details: Serial Number: 1 (0x1) Validity Not Before: Apr 22 15:52:49 2014 GMT Not After : Apr 22 15:52:49 2015 GMT Subject: countryName = CN stateOrProvinceName = BeiJing organizationName = eivll0m organizationalUnitName = Tech commonName = mysql_master emailAddress = master@eivll0m.com X509v3 extensions: X509v3 Basic Constraints: CA:FALSE Netscape Comment: OpenSSL Generated Certificate X509v3 Subject Key Identifier: A7:4D:33:91:61:CD:92:5E:72:2A:8E:A6:56:15:6A:AB:FA:22:20:98 X509v3 Authority Key Identifier: keyid:0F:79:D1:B8:1C:63:4B:91:A6:17:9F:B4:6D:A3:C7:96:AA:29:5E:48 Certificate is to be certified until Apr 22 15:52:49 2015 GMT (365 days) Sign the certificate? [y/n]:y 1 out of 1 certificate requests certified, commit? [y/n]y Write out database with 1 new entries Data Base Updated
4.3为slave服务器创建证书申请
[root@mysql_slave ~]# mkdir /usr/local/mysql/ssl [root@mysql_slave ~]# cd /usr/local/mysql/ssl [root@mysql_slave ~]# (umask 077;openssl genrsa -out slave.key 2048) [root@mysql_slave ssl]# openssl req -new -key slave.key -out slave.csr -days 365 You are about to be asked to enter information that will be incorporated into your certificate request. What you are about to enter is what is called a Distinguished Name or a DN. There are quite a few fields but you can leave some blank For some fields there will be a default value, If you enter '.', the field will be left blank. ----- Country Name (2 letter code) [XX]:CN State or Province Name (full name) []:BeiJing Locality Name (eg, city) [Default City]:ChaoYang Organization Name (eg, company) [Default Company Ltd]:eivll0m Organizational Unit Name (eg, section) []:Tech Common Name (eg, your name or your server's hostname) []:mysql_slave Email Address []: Please enter the following 'extra' attributes to be sent with your certificate request A challenge password []: An optional company name []:
4.4为slave服务器签署证书
[root@mysql_slave ssl]# scp slave.csr mysql_master:/tmp/ [root@mysql_master ssl]# openssl ca -in /tmp/slave.csr -out /tmp/slave.crt -days 365 Using configuration from /etc/pki/tls/openssl.cnf Check that the request matches the signature Signature ok Certificate Details: Serial Number: 2 (0x2) Validity Not Before: Apr 22 15:57:52 2014 GMT Not After : Apr 22 15:57:52 2015 GMT Subject: countryName = CN stateOrProvinceName = BeiJing organizationName = eivll0m organizationalUnitName = Tech commonName = mysql_slave emailAddress = slave@eivll0m.com X509v3 extensions: X509v3 Basic Constraints: CA:FALSE Netscape Comment: OpenSSL Generated Certificate X509v3 Subject Key Identifier: B9:4B:EA:28:0E:9E:4B:84:A6:9A:4E:45:3B:DF:B3:B9:E3:E9:ED:55 X509v3 Authority Key Identifier: keyid:0F:79:D1:B8:1C:63:4B:91:A6:17:9F:B4:6D:A3:C7:96:AA:29:5E:48 Certificate is to be certified until Apr 22 15:57:52 2015 GMT (365 days) Sign the certificate? [y/n]:y 1 out of 1 certificate requests certified, commit? [y/n]y Write out database with 1 new entries Data Base Updated
在mastet服务器上将签署好证书申请拷贝到Slave服务器
[root@mysql_master ~]# scp /tmp/slave.crt mysql_slave:/usr/local/mysql/ssl/
4.5将CA证书拷贝到slave服务器与saster相应目录
[root@mysql_master ~]# scp /etc/pki/CA/cacert.pem mysql_slave:/usr/local/mysql/ssl/ [root@mysql_master ~]# cp /etc/pki/CA/cacert.pem /usr/local/mysql/ssl/
4.6修改master与slave服务器证书属主、属组为"mysql"用户
# chown -R mysql.mysql /usr/local/mysql/ssl # ll /usr/local/mysql/ssl/ -rw-r--r-- 1 mysql mysql 1415 Sep 20 20:57 cacert.pem -rw-r--r-- 1 mysql mysql 4600 Sep 20 20:22 master.crt -rw-r--r-- 1 mysql mysql 1054 Sep 20 20:20 master.csr -rw------- 1 mysql mysql 1675 Sep 20 20:17 master.key
4.7在master与slave服务器编辑my.cnf开启SSL加密功能
在master服务器的my.cnf文件中[mysqld]下添加如下参数
ssl #开启SSL功能 ssl_ca = /usr/local/mysql/ssl/cacert.pem #指定CA文件位置 ssl_cert = /usr/local/mysql/ssl/master.crt #指定证书文件位置 ssl_key = /usr/local/mysql/ssl/master.key #指定密钥所在位置
在slave服务器的my.cnf文件中[mysqld]下添加如下参数
ssl ssl_ca = /usr/local/mysql/ssl/cacert.pem ssl_cert = /usr/local/mysql/ssl/slave.crt ssl_key = /usr/local/mysql/ssl/slave.key
4.8在master服务器查看SSL加密是否开启并创建授权一个基于密钥认证的用户
mysql> SHOW VARIABLES LIKE '%ssl%'; +---------------+---------------------------------+ | Variable_name | Value | +---------------+---------------------------------+ | have_openssl | YES | | have_ssl | YES | | ssl_ca | /usr/local/mysql/ssl/cacert.pem | | ssl_capath | | | ssl_cert | /usr/local/mysql/ssl/master.crt | | ssl_cipher | | | ssl_crl | | | ssl_crlpath | | | ssl_key | /usr/local/mysql/ssl/master.key | +---------------+---------------------------------+ 9 rows in set (0.12 sec)
mysql> GRANT REPLICATION CLIENT,REPLICATION SLAVE ON *.* to 'slave'@'172.16.%.%' IDENTIFIED BY 'passwd' REQUIRE SSL; Query OK, 0 rows affected (0.00 sec) mysql> FLUSH PRIVILEGES; Query OK, 0 rows affected (0.02 sec)
4.9查看master服务器二进制日志文件和事件位置
mysql> SHOW MASTER STATUS; +------------------+----------+--------------+------------------+-------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set | +------------------+----------+--------------+------------------+-------------------+ | mysql-bin.000007 | 919 | | | | +------------------+----------+--------------+------------------+-------------------+ 1 row in set (0.09 sec)
4.10在slave上测试使用加密用户指定密钥连接master服务器（如下测试成功）
root@mysql_slave ssl]# mysql -uslave -ppasswd -h 172.16.10.72 --ssl-ca=/usr/local/mysql/ssl/cacert.pem --ssl-cert=/usr/local/mysql/ssl/slave.crt --ssl-key=/usr/local/mysql/ssl/slave.key Warning: Using a password on the command line interface can be insecure. Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 2 Server version: 5.6.17-log Source distribution Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql>
4.11查看slave服务器SSL是否开启并连接master服务器
mysql> SHOW VARIABLES LIKE '%ssl%'; +---------------+---------------------------------+ | Variable_name | Value | +---------------+---------------------------------+ | have_openssl | YES | | have_ssl | YES | | ssl_ca | /usr/local/mysql/ssl/cacert.pem | | ssl_capath | | | ssl_cert | /usr/local/mysql/ssl/master.crt | | ssl_cipher | | | ssl_crl | | | ssl_crlpath | | | ssl_key | /usr/local/mysql/ssl/master.key | +---------------+---------------------------------+
mysql> change master to master_host='172.16.10.72',master_user='slave',master_password='passwd',master_log_file='mysql-bin.000007',master_log_pos=919,master_ssl=1,master_ssl_ca='/usr/local/mysql/ssl/cacert.pem',master_ssl_cert='/usr/local/mysql/ssl/slave.crt',master_ssl_key='/usr/local/mysql/ssl/slave.key'; mysql> start slave; #启动IO线程 mysql> show slave status\G; ##查看slave状态
4.12查看slave服务器状态
[root@mysql_slave ~]# cd /usr/local/mysql/ssl/ [root@mysql_slave ssl]# mysql -e 'show slave status\G;' *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 172.16.10.72 Master_User: slave Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000007 Read_Master_Log_Pos: 919 Relay_Log_File: relay_log.000002 Relay_Log_Pos: 572 Relay_Master_Log_File: mysql-bin.000007 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: 919 Relay_Log_Space: 739 Until_Condition: None Until_Log_File: Until_Log_Pos: 0 Master_SSL_Allowed: Yes Master_SSL_CA_File: /usr/local/mysql/ssl/cacert.pem Master_SSL_CA_Path: Master_SSL_Cert: /usr/local/mysql/ssl/slave.crt Master_SSL_Cipher: Master_SSL_Key: /usr/local/mysql/ssl/slave.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 Master_UUID: 988cd54d-c1a7-11e3-b1a5-000c29c976ef Master_Info_File: /usr/local/mysql/data/master.info SQL_Delay: 0 SQL_Remaining_Delay: NULL Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it Master_Retry_Count: 86400 Master_Bind: Last_IO_Error_Timestamp: Last_SQL_Error_Timestamp: Master_SSL_Crl: Master_SSL_Crlpath: Retrieved_Gtid_Set: Executed_Gtid_Set: Auto_Position: 0
4.13创建数据库进行验证
[root@mysql_master ssl]# mysql -e 'create database mydata' [root@mysql_master ssl]# mysql -e 'show databases' +--------------------+ | Database | +--------------------+ | information_schema | | eivll0m | | mydata | | mysql | | performance_schema | | test | +--------------------+
[root@mysql_slave data]# mysql -e 'show databases;' +--------------------+ | Database | +--------------------+ | information_schema | | eivll0m | | mydata | | mysql | | performance_schema | | test | +--------------------+
复制成功！
