基于mysql+mycat搭建稳定高可用集群负载均衡主备复制读写分离操作

[mysqld]
server-id=1 #主机标示，整数
port=3306  
log-bin="C:/Program Files/MySQL/MySQL Server 5.5/log/mysql-bin.log" #确保此文件可写
read-only=0  #主机，读写都可以
binlog-do-db=sync_test  #需要备份数据库，多个写多行
binlog-ignore-db=mysql #不需要备份的数据库，多个写多行

#登录mysql console
进入%home%/bin，执行mysql -uroot -proot
#授权。允许root用户，从192.168.110.*的IP范围 远程访问A主mysql
mysql>GRANT ALL PRIVILEGES ON *.* TO 'root'@'192.168.110.*' IDENTIFIED BY 'root' WITH GRANT OPTION;
#生效。该操作很重要！
mysql>FLUSH PRIVILEGES;

mysql>net stop mysql;
mysql>net start mysql;

mysql> show master status\G;
*************************** 1. row ***************************
      File: mysql-bin.000003
    Position: 107
  Binlog_Do_DB: sync_test
Binlog_Ignore_DB: mysql
1 row in set (0.00 sec)

ERROR:
No query specified

[mysqld]
# add for sycn test
server-id=2            #从机标识
log-bin="C:/Program Files/MySQL/MySQL Server 5.5/log/mysql-bin.log" #确保此文件可写
#master-host="192.168.110.1" #主机Ip
#master-user=root         #数据库访问用户名
#master-pass=root           #数据库访问密码
#master-port=3306     #主机端口
#master-connect-retry=60   #如果从服务器发现主服务器断掉，重新连接的时间差(秒)
replicate-do-db=sync_test   #只复制某个库
replicate-ignore-db=mysql   #不复制某个库

mysql>net stop mysql;
mysql>net start mysql;

mysql>change master to master_host='192.168.110.1',master_port='3306',master_user='root',master_password='root';
mysql>slave start;
mysql>show slave status\G;
*************************** 1. row ***************************
        Slave_IO_State: Waiting for master to send even
         Master_Host: 192.168.110.1
         Master_User: root
         Master_Port: 3306
        Connect_Retry: 60
       Master_Log_File: mysql-bin.000003
     Read_Master_Log_Pos: 107
        Relay_Log_File: wjt-1c698d8a032-relay-bin.00001
        Relay_Log_Pos: 253
    Relay_Master_Log_File: mysql-bin.000003
       Slave_IO_Running: Yes
      Slave_SQL_Running: Yes
       Replicate_Do_DB: sync_test
     Replicate_Ignore_DB: mysql
      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: 565
       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)
ERROR:
No query specified

<user name="admin">
    <property name="password">admin</property>
    <property name="schemas">TESTDB</property>
    <!-- 表级 DML 权限设置 -->
    <!--     
    <privileges check="false">
      <schema name="TESTDB" dml="0110" >
        <table name="tb01" dml="0000"></table>
        <table name="tb02" dml="1111"></table>
      </schema>
    </privileges>    
     -->
  </user>
  <user name="user">
    <property name="password">user</property>
    <property name="schemas">TESTDB</property>
    <property name="readOnly">true</property>
  </user>

<?xml version="1.0"?>
<!DOCTYPE mycat:schema SYSTEM "schema.dtd">
<mycat:schema xmlns:mycat="http://io.mycat/">
  <schema name="TESTDB" checkSQLschema="false" sqlMaxLimit="100" dataNode="dn1">
    <!-- 这里不配置，代表所有的表分片到dn1节点-->
  </schema>
  <dataNode name="dn1" dataHost="localhost1" database="sync_test" />
  <dataHost name="localhost1" maxCon="1000" minCon="10" balance="1"
       writeType="0" dbType="mysql" dbDriver="native" switchType="1" slaveThreshold="100">
    <heartbeat>select user()</heartbeat>
    <!-- can have multi write hosts -->
    <writeHost host="hostM1" url="192.168.110.1:3306" user="root" password="root">
      <!-- can have multi read hosts -->
      <readHost host="hostS2" url="192.168.110.2:3306" user="root" password="root" />
    </writeHost>
  </dataHost>
</mycat:schema>

#登录mysql console
进入%home%/bin，执行mysql -uroot -proot
#授权。允许root用户，从192.168.110.*的IP范围 远程访问Bmysql
mysql>GRANT ALL PRIVILEGES ON *.* TO 'root'@'192.168.110.*' IDENTIFIED BY 'root' WITH GRANT OPTION;
#生效,该操作很重要！
mysql>FLUSH PRIVILEGES;

mysql> slave stop;
Query OK, 0 rows affected (0.00 sec)
mysql> show slave status\G;
*************************** 1. row ***************************
        Slave_IO_State:
         Master_Host: 192.168.110.1
         Master_User: root
         Master_Port: 3306
        Connect_Retry: 60
       Master_Log_File: mysql-bin.000003
     Read_Master_Log_Pos: 478
        Relay_Log_File: wjt-1c698d8a032-relay-bin.00001
        Relay_Log_Pos: 624
    Relay_Master_Log_File: mysql-bin.000003
       Slave_IO_Running: No
      Slave_SQL_Running: No
       Replicate_Do_DB: sync_test
     Replicate_Ignore_DB: mysql
      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: 478
       Relay_Log_Space: 936
       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: 1
1 row in set (0.00 sec)
ERROR:
No query specified