Mysql的主从复制详解

一、MYSQL主从复制工作原理

主从同步机制：

1、外部数据更新，可以是web服务器，也可以是其他的更新语句。

2、数据增加，删除，更改一系列变化会记录到mysql的binlog中。

3、从服务器上的I/O线程读取主数据库上的binlog日志。

4、拷贝主数据库上的binlog日志到从数据库上的中继日志（relay log）。

5、从数据库上的SQL线程读取中继日志。

6、通过replay中继日志，在从数据库上再执行一遍。

这就是整个主从同步的一个过程。

二、实验步骤

系统：Centos6.4-x86_64

主服务器：node1:172.16.2.1

从服务器：node2:172.16.2.16

Mysql版本：mysql-5.5.33

Mysql的主从复制：

操作思路：

主服务器：

1.创建具有复制权限的用户帐号

2.设置server-id

3.启动二进制日志

从服务器：

1.启动中继日志

2.设置server-id

3.启动复制线程

同步主从服务器时间：用yum安装ansible的rpm包

[root@node1 ~]# vim /etc/ansible/hosts
[hac]
172.16.2.1
172.16.2.16
[root@node1 ~]# ansible all -a 'ntpdate 172.16.0.1'
172.16.2.16 | success | rc=0 >>
22 Sep 20:40:50 ntpdate[2637]: step time server 172.16.0.1 offset 2676.843737 sec
172.16.2.1 | success | rc=0 >>
22 Sep 20:40:50 ntpdate[3045]: step time server 172.16.0.1 offset 2675.977884 sec
[root@node1 ~]# ansible all -a 'date'
172.16.2.16 | success | rc=0 >>
Sun Sep 22 20:41:15 CST 2013
172.16.2.1 | success | rc=0 >>
Sun Sep 22 20:41:15 CST 2013

在主从服务器上安装Mysql过程不在介绍，请参考http://pangge.blog.51cto.com/6013757/1059896

安装过程注意文件权限要设置正确

配置主服务器：

1.编译配置文件：

[root@node1 ~]# vim /etc/my.cnf
[mysqld]
datadir = /mydata/data/ //数据存放目录
innodb_file_per_table = 1//设置每表单个表空间
log-bin=/mydata/data/mysql-bin //二进制日志存放位置，写绝对路径避免主从复制出现错误
server-id       = 1 //server-id的值一定要和从服务器的server-id号区分开来

启动mysql服务

[root@node1 data]# service mysqld start

Starting MySQL..

2.创建具有复制权限的用户帐号

[root@node1 ~]# mysql
mysql> grant replication client,replication slave on *.* to hailian@'172.16.%.%' identified by 'hailian';
Query OK, 0 rows affected (0.00 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

配置从服务器：

1.编辑配置文件

[root@node2 ~]# vim /etc/my.cnf
[mysqld]
datadir = /mydata/data/ //数据存放目录
innodb_file_per_table = 1//设置每表单个表空间
log-bin=/mydata/data/mysql-bin //二进制日志存放位置，写绝对路径避免主从复制出现错误
server-id       = 20 //server-id的值一定要和从服务器的server-id号区分开来
relay-log=/mydata/data/relay-bin //中继日志
read-only=1 //从服务器设置为只读服务器

2.登录Mysql查看启动线程

[root@node2 ~]# mysql
mysql> show processlist;
+----+------+-----------+------+---------+------+-------+------------------+
| Id | User | Host      | db   | Command | Time | State | Info             |
+----+------+-----------+------+---------+------+-------+------------------+
|  1 | root | localhost | NULL | Query   |    0 | NULL  | show processlist |
+----+------+-----------+------+---------+------+-------+------------------+
1 row in set (0.00 sec)
mysql> show slave status\G
Empty set (0.00 sec) //说明从服务器还没有开始启用
mysql> help change master to
Name: 'CHANGE MASTER TO'
Description:
Syntax:
CHANGE MASTER TO option [, option] ...
option:
    MASTER_BIND = 'interface_name' #将控制绑定到哪个接口上
  | MASTER_HOST = 'host_name' #主服务器地址
  | MASTER_USER = 'user_name' #具有复制权限的用户
  | MASTER_PASSWORD = 'password' #具有复制权限用户的密码
  | MASTER_PORT = port_num
  | MASTER_CONNECT_RETRY = interval
  | MASTER_HEARTBEAT_PERIOD = interval
  | MASTER_LOG_FILE = 'master_log_name' #指定从哪一个二进制日志文件开始复制
  | MASTER_LOG_POS = master_log_pos #二进制日志事件的位置
  | RELAY_LOG_FILE = 'relay_log_name' #中继日志
  | RELAY_LOG_POS = relay_log_pos
  | MASTER_SSL = {0|1}  #是否使用ssl功能
  | MASTER_SSL_CA = 'ca_file_name'
  | MASTER_SSL_CAPATH = 'ca_directory_name'
  | MASTER_SSL_CERT = 'cert_file_name'
  | MASTER_SSL_KEY = 'key_file_name'
  | MASTER_SSL_CIPHER = 'cipher_list'
  | MASTER_SSL_VERIFY_SERVER_CERT = {0|1}
  | IGNORE_SERVER_IDS = (server_id_list)

配置从服务器连接主服务器

mysql> change master to master_host='172.16.2.1',
    -> master_user='hailian',
    -> master_password='hailian',
    -> master_log_file='mysql-bin.000004',
    -> master_log_pos=354;
Query OK, 0 rows affected (0.02 sec)

启动从服务器线程

mysql> start slave;
Query OK, 0 rows affected (0.00 sec)
mysql> show slave status\G
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: 172.16.2.1
                  Master_User: hailian
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: mysql-bin.000004
          Read_Master_Log_Pos: 354
               Relay_Log_File: relay-bin.000002
                Relay_Log_Pos: 253
        Relay_Master_Log_File: mysql-bin.000004
             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: 354
              Relay_Log_Space: 403
              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)

测试

在主服务器上创建数据库testdb

mysql> create database testdb;
Query OK, 1 row affected (0.00 sec)
mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| test               |
| testdb             |
+--------------------+
5 rows in set (0.00 sec)

从服务器上进行查看

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| test               |
| testdb             |
+--------------------+
5 rows in set (0.00 sec)

验证成功，实现了主从复制

三、如何在主服务器运行了一段时间后，实现主从复制

对从服务器从新进行初始化，其他配置不变

[root@node2 ~]# service mysqld stop
Shutting down MySQL.               [OK]
[root@node2 mysql]# ./scripts/mysql_install_db --user=mysql --datadir=/mydata/data/
[root@node2 data]# chown -R mysql.mysql ./*
[root@node2 ~]# service mysqld start
Starting MySQL..                                           [  OK  ]

首先在主服务器上完全备份数据，然后将数据导入到从服务器上

在主服务器上进行完全备份

[root@node1 data]# mysqldump -uroot --lock-all-tables --master-data=2 --events --all-databases > /root/all.sql

将备份好的数据复制到从服务器上

[root@node1 data]# scp /root/all.sql node2:/tmp

all.sql

将数据导入到从服务器的mysql中

mysql> source /tmp/all.sql;
mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| test               |
| testdb             |
+--------------------+
5 rows in set (0.00 sec)

此时查看主服务器上二进制日志文件及其事件位置

mysql> show master status;
+------------------+----------+--------------+------------------+
| File             | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.000005 |      182 |              |                  |
+------------------+----------+--------------+------------------+
1 row in set (0.00 sec)
mysql> show grants for hailian@'172.16.%.%';
+-------------------------------------------------------------------------------------------------------------------------------------------------+
| Grants for [email protected].%.%                                                                                                                   |
+-------------------------------------------------------------------------------------------------------------------------------------------------+
| GRANT REPLICATION SLAVE, REPLICATION CLIENT ON *.* TO 'hailian'@'172.16.%.%' IDENTIFIED BY PASSWORD '*EAC0439681AAEB5A29A1B15EB26A89F369F943B7' |
+-------------------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)

在从服务器上配置连接主服务器

mysql> show slave status;
Empty set (0.00 sec)
mysql> change master to master_host='172.16.2.1',
    -> master_user='hailian',
    -> master_password='hailian',
    -> master_log_file='mysql-bin.000005',
    -> master_log_pos=182;
Query OK, 0 rows affected (0.01 sec)

启动从服务器

mysql> start slave;

Query OK, 0 rows affected (0.00 sec)

查看从服务器状态

mysql> show slave status\G
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: 172.16.2.1
                  Master_User: hailian
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: mysql-bin.000005
          Read_Master_Log_Pos: 182
               Relay_Log_File: relay-bin.000002
                Relay_Log_Pos: 253
        Relay_Master_Log_File: mysql-bin.000005
             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: 182
              Relay_Log_Space: 403
              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)

测试

在主服务上做一下修改

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| test               |
| testdb             |
+--------------------+
5 rows in set (0.00 sec)
mysql> use testdb;
Database changed
mysql> create table tb1(id int);
Query OK, 0 rows affected (0.03 sec)
mysql> insert into tb1 values (1),(2);
Query OK, 2 rows affected (0.00 sec)
Records: 2  Duplicates: 0  Warnings: 0
mysql> select * from tb1;
+------+
| id   |
+------+
|    1 |
|    2 |
+------+
2 rows in set (0.04 sec)

查看从服务器

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| test               |
| testdb             |
+--------------------+
5 rows in set (0.00 sec)
mysql> use testdb;
Database changed
mysql> show tables
    -> ;
+------------------+
| Tables_in_testdb |
+------------------+
| tb1              |
+------------------+
1 row in set (0.00 sec)
mysql> select * from tb1;
+------+
| id   |
+------+
|    1 |
|    2 |
+------+
2 rows in set (0.03 sec)

验证成功，实现了主从复制

四、如何实现半同步复制

1、分别在主从节点上安装相关的插件

主节点上：

mysql> install plugin rpl_semi_sync_master soname 'semisync_master.so';
Query OK, 0 rows affected (0.02 sec)
mysql> show global variables like '%semi%';
+------------------------------------+-------+
| Variable_name                      | Value |
+------------------------------------+-------+
| rpl_semi_sync_master_enabled       | OFF   |
| rpl_semi_sync_master_timeout       | 10000 |
| rpl_semi_sync_master_trace_level   | 32    |
| rpl_semi_sync_master_wait_no_slave | ON    |
+------------------------------------+-------+
4 rows in set (0.00 sec)

从节点上：

mysql> install plugin rpl_semi_sync_slave soname 'semisync_slave.so';
Query OK, 0 rows affected (0.06 sec)
mysql> show global variables like '%semi%';
+---------------------------------+-------+
| Variable_name                   | Value |
+---------------------------------+-------+
| rpl_semi_sync_slave_enabled     | OFF   |
| rpl_semi_sync_slave_trace_level | 32    |
+---------------------------------+-------+
2 rows in set (0.00 sec)

2、启用半同步复制

在主服务上

mysql> SET GLOBAL rpl_semi_sync_master_enabled = ON;

Query OK, 0 rows affected (0.00 sec)

在从服务器上

mysql> SET GLOBAL rpl_semi_sync_slave_enabled = ON;

Query OK, 0 rows affected (0.00 sec)

mysql> stop slave;

Query OK, 0 rows affected (0.02 sec)

mysql> start slave;

Query OK, 0 rows affected (0.00 sec)

3、确认半同步功能已经启用

在主服务上

mysql> show global status like '%semi%';
+--------------------------------------------+-------+
| Variable_name                              | Value |
+--------------------------------------------+-------+
| Rpl_semi_sync_master_clients               | 1     |
| Rpl_semi_sync_master_net_avg_wait_time     | 0     |
| Rpl_semi_sync_master_net_wait_time         | 0     |
| Rpl_semi_sync_master_net_waits             | 0     |
| Rpl_semi_sync_master_no_times              | 0     |
| Rpl_semi_sync_master_no_tx                 | 0     |
| Rpl_semi_sync_master_status                | ON    |
| Rpl_semi_sync_master_timefunc_failures     | 0     |
| Rpl_semi_sync_master_tx_avg_wait_time      | 0     |
| Rpl_semi_sync_master_tx_wait_time          | 0     |
| Rpl_semi_sync_master_tx_waits              | 0     |
| Rpl_semi_sync_master_wait_pos_backtraverse | 0     |
| Rpl_semi_sync_master_wait_sessions         | 0     |
| Rpl_semi_sync_master_yes_tx                | 0     |
+--------------------------------------------+-------+
14 rows in set (0.00 sec)

在从服务上

mysql> show global status like '%semi%';
+----------------------------+-------+
| Variable_name              | Value |
+----------------------------+-------+
| Rpl_semi_sync_slave_status | ON    |
+----------------------------+-------+
1 row in set (0.00 sec)

测试

在主服务上

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| test               |
| testdb             |
+--------------------+
5 rows in set (0.00 sec)
mysql> use testdb;
Database changed
mysql> create table tb2(name char(10));
Query OK, 0 rows affected (0.07 sec)

在从服务器上查看

mysql> use testdb;
Database changed
mysql> show tables;
+------------------+
| Tables_in_testdb |
+------------------+
| tb1              |
| tb2              |
+------------------+
2 rows in set (0.00 sec)
mysql> desc tb2;
+-------+----------+------+-----+---------+-------+
| Field | Type     | Null | Key | Default | Extra |
+-------+----------+------+-----+---------+-------+
| name  | char(10) | YES  |     | NULL    |       |
+-------+----------+------+-----+---------+-------+
1 row in set (0.00 sec)

在主服务器上

mysql> show global status like '%semi%';
+--------------------------------------------+-------+
| Variable_name                              | Value |
+--------------------------------------------+-------+
| Rpl_semi_sync_master_clients               | 1     |
| Rpl_semi_sync_master_net_avg_wait_time     | 398   |
| Rpl_semi_sync_master_net_wait_time         | 398   |
| Rpl_semi_sync_master_net_waits             | 1     |
| Rpl_semi_sync_master_no_times              | 0     |
| Rpl_semi_sync_master_no_tx                 | 0     |
| Rpl_semi_sync_master_status                | ON    |
| Rpl_semi_sync_master_timefunc_failures     | 0     |
| Rpl_semi_sync_master_tx_avg_wait_time      | 293   |
| Rpl_semi_sync_master_tx_wait_time          | 293   |
| Rpl_semi_sync_master_tx_waits              | 1     |
| Rpl_semi_sync_master_wait_pos_backtraverse | 0     |
| Rpl_semi_sync_master_wait_sessions         | 0     |
| Rpl_semi_sync_master_yes_tx                | 1     |
+--------------------------------------------+-------+
14 rows in set (0.00 sec)
mysql> insert into tb2 values ('hailian');
Query OK, 1 row affected (0.00 sec)
mysql> show global status like '%semi%';
+--------------------------------------------+-------+
| Variable_name                              | Value |
+--------------------------------------------+-------+
| Rpl_semi_sync_master_clients               | 1     |
| Rpl_semi_sync_master_net_avg_wait_time     | 439   |
| Rpl_semi_sync_master_net_wait_time         | 879   |
| Rpl_semi_sync_master_net_waits             | 2     |
| Rpl_semi_sync_master_no_times              | 0     |
| Rpl_semi_sync_master_no_tx                 | 0     |
| Rpl_semi_sync_master_status                | ON    |
| Rpl_semi_sync_master_timefunc_failures     | 0     |
| Rpl_semi_sync_master_tx_avg_wait_time      | 293   |
| Rpl_semi_sync_master_tx_wait_time          | 293   |
| Rpl_semi_sync_master_tx_waits              | 1     |
| Rpl_semi_sync_master_wait_pos_backtraverse | 0     |
| Rpl_semi_sync_master_wait_sessions         | 0     |
| Rpl_semi_sync_master_yes_tx                | 2     |
+--------------------------------------------+-------+
14 rows in set (0.00 sec)

操作完成

注意要想实现半同步复制的永久有效，需要编辑配置文件，将设置的参数放到配置文件/etc/my.cnf中

五、基于ssl的mysql主从复制

在主服务器上自建CA，然后分为为主从服务器颁发证书，详细操作过程请参考http://lanlian.blog.51cto.com/6790106/1281720在这里就不再介绍

讲解配置过程

在主服务器上开启ssl功能

在[mydqld]字段中添加如下内容

ssl

ssl_ca = /etc/pki/CA/cacert.pem

ssl_cert = /usr/local/mysql/ssl/master.crt

ssl_key = /usr/local/mysql/ssl/master.key

重启服务后验证ssl是否开启成功

mysql> show global variables like '%ssl%';
+---------------+---------------------------------+
| Variable_name | Value                           |
+---------------+---------------------------------+
| have_openssl  | YES                             |
| have_ssl      | YES                             |
| ssl_ca        | /etc/pki/CA/cacert.pem          |
| ssl_capath    |                                 |
| ssl_cert      | /usr/local/mysql/ssl/master.crt |
| ssl_cipher    |                                 |
| ssl_key       | /usr/local/mysql/ssl/master.key |
+---------------+---------------------------------+
7 rows in set (0.00 sec)

注意无论在master服务器还是在slave服务器上一定要修改ssl目录及其文件的属主属组为mysql

在主服务器上创建允许ssl连接的用户

mysql> grant replication client,replication slave on *.* to [email protected] identified by 'redhat' require ssl;

Query OK, 0 rows affected (0.03 sec)

从服务器上开启ssl功能

[mysqld]
port            = 3306
socket          = /tmp/mysql.sock
skip-external-locking
key_buffer_size = 256M
max_allowed_packet = 1M
table_open_cache = 256
sort_buffer_size = 1M
read_buffer_size = 1M
read_rnd_buffer_size = 4M
myisam_sort_buffer_size = 64M
thread_cache_size = 8
query_cache_size= 16M
# Try number of CPU's*2 for thread_concurrency
thread_concurrency = 8
datadir = /mydata/data
innodb_file_per_table = 1
ssl

验证ssl是否开启成功

mysql> show global variables like '%ssl%';
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| have_openssl  | YES   |
| have_ssl      | YES   |
| ssl_ca        |       |
| ssl_capath    |       |
| ssl_cert      |       |
| ssl_cipher    |       |
| ssl_key       |       |
+---------------+-------+
7 rows in set (0.01 sec)

从服务器连接主服务器

mysql> change master tomaster_host='172.16.2.1',
    -> master_user='lanlian',
    -> master_password='redhat',
    -> master_log_file='mysql-bin.000004',
    -> 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> show slave status\G
*************************** 1.row ***************************
               Slave_IO_State:
                  Master_Host: 172.16.18.7
                  Master_User: rpssl
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: mysql-bin.000004
          Read_Master_Log_Pos: 4
               Relay_Log_File:relay-mysql.000001
                Relay_Log_Pos: 4
        Relay_Master_Log_File: mysql-bin.000004
             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: 4
              Relay_Log_Space: 107
              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: 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

8、启动从服务器线程：

mysql> start slave;
mysql> show slave status\G
*************************** 1. row ***************************
              Slave_IO_State: Waiting for master to send event
                 Master_Host: 172.16.2.1
                 Master_User: lanlian
                 Master_Port: 3306
               Connect_Retry: 60
             Master_Log_File: mysql-bin.000004
         Read_Master_Log_Pos: 362
              Relay_Log_File: relay-mysql.000002
               Relay_Log_Pos: 508
       Relay_Master_Log_File: mysql-bin.000004
            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: 362
             Relay_Log_Space: 660
             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
[root@node2 ssl]#mysql --ssl-ca=/usr/local/mysql/ssl/cacert.pem  --ssl-cert=/usr/local/mysql/ssl/slave.crt--ssl-key=/usr/local/mysql/ssl/slave.key  -urpssl -h172.16.2.1 �Cpredhat
mysql> \s
--------------
mysql  Ver 14.14 Distrib5.5.33, for linux2.6 (x86_64) using readline 5.1
Connection id:      3
Current database:
Current user:       [email protected]
SSL:            Cipher inuse is DHE-RSA-AES256-SHA     #基于ssl已可用
Current pager:      stdout
Using outfile:      ''
Using delimiter:    ;
Server version:     5.5.33-logMySQL Community Server (GPL)
Protocol version:   10
Connection:     172.16.2.1via TCP/IP
Server characterset:    latin1
Db     characterset:    latin1
Client characterset:    utf8
Conn.  characterset:    utf8
TCP port:       3306
Uptime:         29 min 24sec
Threads: 3  Questions:14  Slow queries: 0  Opens: 33 Flush tables: 1  Open tables:26  Queries per second avg: 0.007

操作完成！

总结：以上是Mysql主从复制操作过程，深刻理解，熟练操作是非常必要的，不足之处多多指点！