MariaDB 多主一从 搭建测试

Posted 数据库技术杂谈

tags:

篇首语:本文由小常识网(cha138.com)小编为大家整理,主要介绍了MariaDB 多主一从 搭建测试相关的知识,希望对你有一定的参考价值。

背景:

      目前mysql依然只支持一个Slave从一个Master复制数据,虽然也可以做到一主多备(M->S),双主复制(M<->M)等架构,但是局限性依然很大。由于项目的要求,需要各个主库的表整合到一个地方进行统计和分析,要是每次连不同的实例操作,是一件非常耗体力的操作。所以继续一种类似多主一从的实例。

环境搭建

Master 1200.51(MySQL)

Master 2200.52(MySQL)

Slave   :200.73(MariaDB) 修改好server-id

 确认好MasterPOS

M1:

rep@192.168.200.51 : (none) 10:26:11>show master status;

+--------------------+----------+--------------+------------------+

|File              |Position | Binlog_Do_DB |Binlog_Ignore_DB |

+--------------------+----------+--------------+------------------+

| mysql-bin51.000013|      107|             | test             |

+--------------------+----------+--------------+------------------+

1 row inset (0.01 sec)

M2

rep@192.168.200.52 : r2 10:26:23>show master status;           +---------------------+----------+--------------+------------------+

|File                |Position | Binlog_Do_DB |Binlog_Ignore_DB |

+---------------------+----------+--------------+------------------+

| mysql-bin_52.000106|      107|             | test             |

+---------------------+----------+--------------+------------------+

1 row inset (0.00 sec)

Slave 操作:

MariaDB [(none)]>change master 'r1'tomaster_host='192.168.200.51',master_user='rep',master_password='rep123456',master_log_file='mysql-bin51.000013',master_log_pos=107;

Query OK, 0 rows affected (0.23 sec)

 

MariaDB [(none)]>change master 'r2'to master_host='192.168.200.52',master_user='rep',master_password='rep123456',master_log_file='mysql-bin_52.000106',master_log_pos=107;

Query OK, 0 rows affected (0.25 sec)

 

MariaDBchange方法和MySQL有点不一样,多了一个 ['connection_name'],这个就是多主一从的关键。为每个主设置一个通道标识,这样就可以支持多主复制了。

如何保存复制的信息?单主复制会把复制信息保存在master.info中,在多主复制中的保存也类似,只是在最后加上通道标识名称。如:

-rw-rw---- 1 mysql mysql  113 11月 1710:30 master-r1.info

-rw-rw---- 1 mysql mysql  114 11月 1710:31 master-r2.info

-rw-rw---- 1 mysql mysql  248 11月 1710:30 mysqld-relay-bin-r1.000001

-rw-rw---- 1 mysql mysql   29 11月 1710:30 mysqld-relay-bin-r1.index

-rw-rw---- 1 mysql mysql  248 11月 1710:31 mysqld-relay-bin-r2.000001

-rw-rw---- 1 mysql mysql   29 11月 1710:31 mysqld-relay-bin-r2.index

-rw-rw---- 1 mysql mysql   54 11月 1710:30 relay-log-r1.info

-rw-rw---- 1 mysql mysql   55 11月 1710:31 relay-log-r2.info

查看同步

#查看所有通道
MariaDB
[(none)]> show all slaves status\G;

#查看单个通道

MariaDB [(none)]> showslave 'r1' status\G;

***************************1. row ***************************

               Slave_IO_State:

                  Master_Host: 192.168.200.51

                  Master_User: rep

                  Master_Port: 3306

                Connect_Retry: 60

              Master_Log_File: mysql-bin51.000013

          Read_Master_Log_Pos: 107

               Relay_Log_File: mysqld-relay-bin-r1.000001

                Relay_Log_Pos: 4

        Relay_Master_Log_File: mysql-bin51.000013

             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: 248

              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

               Master_SSL_Crl:

           Master_SSL_Crlpath:

                   Using_Gtid: No

                  Gtid_IO_Pos:

1 row inset (0.00 sec)

 

MariaDB [(none)]> showslave 'r2' status\G;

***************************1. row ***************************

               Slave_IO_State:

                  Master_Host: 192.168.200.52

                  Master_User: rep

                  Master_Port: 3306

                Connect_Retry: 60

              Master_Log_File: mysql-bin_52.000106

          Read_Master_Log_Pos: 107

               Relay_Log_File: mysqld-relay-bin-r2.000001

                Relay_Log_Pos: 4

        Relay_Master_Log_File: mysql-bin_52.000106

             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: 248

              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

               Master_SSL_Crl:

           Master_SSL_Crlpath:

                   Using_Gtid: No

                  Gtid_IO_Pos:

1 row inset (0.00 sec)

 

ERROR: No queryspecified

 

开启同步

 

#开启单个通道
MariaDB
[(none)]> start slave 'r1';

Query OK, 0 rows affected (0.00 sec)

 

MariaDB [(none)]> startslave 'r2';

Query OK, 0 rows affected (0.00 sec)

 

#开启所有通道

MariaDB [(none)]> startall slaves;

Query OK, 0 rows affected, 2warnings (0.01 sec)

 

MariaDB [(none)]> showwarnings;

+-------+------+--------------------+

|Level| Code |Message            |

+-------+------+--------------------+

| Note  |1937| SLAVE 'r2'started |

| Note  |1937| SLAVE 'r1'started |

+-------+------+--------------------+

2 rows inset (0.00 sec)

 

通过 show allslaves status 命令可知是否同步成功。

关闭同步

 

#关闭单个通道
MariaDB
[(none)]> stop slave 'r1';

Query OK, 0 rows affected (0.14 sec)

 

MariaDB [(none)]> stopslave 'r2';

Query OK, 0 rows affected (0.03 sec)

 

#关闭所有通道

MariaDB [(none)]> stop all slaves;

Query OK, 0 rows affected, 2warnings (0.08 sec)

 

MariaDB [(none)]> showwarnings;

+-------+------+--------------------+

|Level| Code |Message            |

+-------+------+--------------------+

| Note  |1938| SLAVE 'r2'stopped |

| Note  |1938| SLAVE 'r1'stopped |

+-------+------+--------------------+

2 rows inset (0.00 sec)

 

多源复制在原先复制的基础上多了几个变量,现在来说明下:

 

MariaDB [(none)]> show all slaves status\G;

***************************1. row ***************************

              Connection_name: r1                #master的连接名,通道名,第一个参数。

             Master_Server_Id: 1

               Master_SSL_Crl:

           Master_SSL_Crlpath:

                   Using_Gtid: No

                  Gtid_IO_Pos:

         Retried_transactions: 0         #这个连接重试事务的次数

           Max_relay_log_size: 104857600 #relay log的最大值. 如果是0的话,那么在启动的时候就会被设置成max_binlog_size 的大小

         Executed_log_entries: 17        #slave已经指向了多少个日志条目

    Slave_received_heartbeats: 0         #我们从master收到了多少个心跳包

       Slave_heartbeat_period: 1800.000  #多久从master请求一个心跳包 (以秒计算)

               Gtid_Slave_Pos:

 

 测试复制

 

Master 1:

rep@192.168.200.51 : (none) 01:52:34>show databases;

+--------------------+

|Database          |

+--------------------+

| information_schema |

| mha_test           |

| mysql              |

| performance_schema |

| xtra_test          |

+--------------------+

5 rows inset (0.00 sec)

 

rep@192.168.200.51 : (none) 01:52:37>createdatabase r1 default charset utf8;

Query OK, 1 row affected (0.01 sec)

 

rep@192.168.200.51 : (none) 01:53:36>use r1;

Database changed

 

rep@192.168.200.51 : r1 01:53:44>createtable r1(id intnotnull auto_increment primarykey,name varchar(30))default charset utf8;

Query OK, 0 rows affected (1.35 sec)

 

rep@192.168.200.51 : r1 01:54:09>insertinto r1(name) values('a'),('b'),('c');

Query OK, 3 rows affected (0.01 sec)

Records: 3  Duplicates: 0  Warnings: 0

 

rep@192.168.200.51 : r1 01:54:56>select*from r1;

+----+------+

| id | name |

+----+------+

|  1| a    |

|  2| b    |

|  3| c    |

+----+------+

3 rows inset (0.00 sec)

 

Master 2:

rep@192.168.200.52 : (none) 01:52:13>createdatabase r2 default charset utf8;

Query OK, 1 row affected (0.01 sec)

 

rep@192.168.200.52 : (none) 01:54:27>use r2

Database changed

rep@192.168.200.52 : r2 01:54:30>createtable r2(id intnotnull auto_increment primarykey,name varchar(30))default charset utf8;

Query OK, 0 rows affected (0.23 sec)

 

rep@192.168.200.52 : r2 01:54:32>insertinto r2(name) values('A'),('B'),('C');

Query OK, 3 rows affected (0.28 sec)

Records: 3  Duplicates: 0  Warnings: 0

 

rep@192.168.200.52 : r2 01:55:18>select*from r2;

+----+------+

| id | name |

+----+------+

|  1| A    |

|  2| B    |

|  3| C    |

+----+------+

3 rows inset (0.01 sec)

 

Slave:

MariaDB [(none)]> showdatabases;

+--------------------+

|Database          |

+--------------------+

| information_schema |

| mysql              |

| performance_schema |

| r1                 |

| r2                 |

+--------------------+

5 rows inset (0.00 sec)

 

MariaDB [(none)]>use r1;

Reading table information for completion oftableandcolumn names

You can turn off this feature to get a quicker startup with-A

 

Database changed

MariaDB [r1]>select*from r1;

+----+------+

| id | name |

+----+------+

|  1| a    |

|  2| b    |

|  3| c    |

+----+------+

3 rows inset (0.00 sec)

 

MariaDB [r1]>use r2;

Reading table information for completion oftableandcolumn names

You can turn off this feature to get a quicker startup with-A

 

Database changed

MariaDB [r2]>select*from r2;

+----+------+

| id | name |

+----+------+

|  1| A    |

|  2| B    |

|  3| C    |

+----+------+

3 rows inset (0.00 sec)

 

同步成功,那如何错误跳过呢(default_master_connection)?

 

在Master 1上创建r2数据库,因为Slave上存在,所以会报错:

Master 1

rep@192.168.200.51 : r1 01:55:52>createdatabase r2 default charset utf8;

Query OK, 1 row affected (0.01 sec)

 

rep@192.168.200.51 : r1 01:59:51>insertinto r1(name) values('d'),('e'),('f');

Query OK, 3 rows affected (0.01 sec)

Records: 3  Duplicates: 0  Warnings: 0

 

rep@192.168.200.51 : r1 02:04:22>select*from r1;

+----+------+

| id | name |

+----+------+

|  1| a    |

|  2| b    |

|  3| c    |

|  4| d    |

|  5| e    |

|  6| f    |

+----+------+

6 rows inset (0.00 sec)

 

Slave

MariaDB [r2]> show slave 'r1'status\G;

***************************1. row ***************************

               Slave_IO_State: Waiting for master to send event

                  Master_Host: 192.168.200.51

                  Master_User: rep

                  Master_Port: 3306

                Connect_Retry: 60

              Master_Log_File: mysql-bin51.000013

          Read_Master_Log_Pos: 767

               Relay_Log_File: mysqld-relay-bin-r1.000005

                Relay_Log_Pos: 956

        Relay_Master_Log_File: mysql-bin51.000013

             Slave_IO_Running: Yes

            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: 1007

                   Last_Error: Error 'Can't createdatabase'r2'; databaseexists' on query. Default database: 'r2'.Query: 'createdatabase r2 default charset utf8'

                 Skip_Counter: 0

          Exec_Master_Log_Pos: 667

              Relay_Log_Space: 1505

              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: 1007

               Last_SQL_Error: Error 'Can't create database 'r2';database exists'on query. Defaultdatabase: 'r2'. Query: 'create database r2 default charset utf8'

  Replicate_Ignore_Server_Ids:

             Master_Server_Id: 1

               Master_SSL_Crl:

           Master_SSL_Crlpath:

                   Using_Gtid: No

                  Gtid_IO_Pos:

1 row inset (0.00 sec)

 

MariaDB [r1]>select*from r1;

+----+------+

| id | name |

+----+------+

|  1| a    |

|  2| b    |

|  3| c    |

+----+------+

3 rows inset (0.00 sec)

 

r1的同步失败了,那r2可以继续同步吗?

 

Master 2:

rep@192.168.200.52 : r2 01:55:59>insertinto r2(name) values('D'),('E'),('F');

Query OK, 3 rows affected (0.01 sec)

Records: 3  Duplicates: 0  Warnings: 0

 

rep@192.168.200.52 : r2 02:02:19>select*from r2;

+----+------+

| id | name |

+----+------+

|  1| A    |

|  2| B    |

|  3| C    |

|  4| D    |

|  5| E    |

|  6| F    |

+----+------+

6 rows inset (0.01 sec)

 

Slave

MariaDB [r2]>select*from r2;

+----+------+

| id | name |

+----+------+

|  1| A    |

|  2| B    |

|  3| C    |

|  4| D    |

|  5| E    |

|  6| F    |

+----+------+

6 rows inset (0.00 sec)

 

上面可以得出:r1同步失败之后,不影响r2的同步。想要r1同步正常,则需要忽略即跳过该错误。如:

 

MariaDB [r1]> stop slave 'r1';

Query OK, 0 rows affected (0.12 sec)

 

MariaDB [r1]>set@@default_master_connection='r1'#这里是重点:指定一个通道,然后用单通道的sql_slave_skip_counter。

Query OK, 0 rows affected (0.00 sec)

 

MariaDB [r1]>select@@default_master_connection;

+-----------------------------+

|@@default_master_connection|

+-----------------------------+

| r1                         |

+-----------------------------+

1 row inset (0.00 sec)

 

MariaDB [r1]>SET GLOBAL sql_slave_skip_counter =1;

Query OK, 0 rows affected (0.00 sec)

 

MariaDB [r1]> start slave 'r1';

Query OK, 0 rows affected (0.00 sec)

 

MariaDB [r1]> show slave 'r1'status\G;

***************************1. row ***************************

               Slave_IO_State: Waiting for master to send event

                  Master_Host: 192.168.200.51

                  Master_User: rep

                  Master_Port: 3306

                Connect_Retry: 60

              Master_Log_File: mysql-bin51.000013

          Read_Master_Log_Pos: 993

               Relay_Log_File: mysqld-relay-bin-r1.000006

                Relay_Log_Pos: 396

        Relay_Master_Log_File: mysql-bin51.000013

             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: 993

              Relay_Log_Space: 1731

              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_SSL_Crl:

           Master_SSL_Crlpath:

                   Using_Gtid: No

                  Gtid_IO_Pos:

1 row inset (0.00 sec)

 

MariaDB [r1]>select*from r1;

+----+------+

| id | name |

+----+------+

|  1| a    |

|  2| b    |

|  3| c    |

|  4| d    |

|  5| e    |

|  6| f    |

+----+------+

6 rows inset (0.00 sec)

 

看到跳过/忽略错误之后,r1的复制就正常了。

 

从上面的测试上说明,在用多主一从的复制时,需要保证各个主的Master Schema 要唯一,不能有重复。

最后再看看如何初始化

 

MariaDB [r1]> show allslaves status\G;

***************************1. row ***************************

              Connection_name: r1

              Slave_SQL_State: Slave has readall relay log;waiting for the slave I/Othread toupdate it

               Slave_IO_State: Waiting for master to send event

                  Master_Host: 192.168.200.51

                  Master_User: rep

                  Master_Port: 3306

                Connect_Retry: 60

              Master_Log_File: mysql-bin51.000013

          Read_Master_Log_Pos: 1376

               Relay_Log_File: mysqld-relay-bin-r1.000006

                Relay_Log_Pos: 779

        Relay_Master_Log_File: mysql-bin51.000013

             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: 1376

              Relay_Log_Space: 2114

              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_SSL_Crl:

           Master_SSL_Crlpath:

                   Using_Gtid: No

                  Gtid_IO_Pos:

         Retried_transactions: 0

           Max_relay_log_size: 104857600

         Executed_log_entries: 39

    Slave_received_heartbeats: 4

       Slave_heartbeat_period: 1800.000

               Gtid_Slave_Pos:

***************************2. row ***************************

              Connection_name: r2

              Slave_SQL_State: Slave has readall relay log;waiting for the slave I/Othread toupdate it

               Slave_IO_State: Waiting for master to send event

                  Master_Host: 192.168.200.52

                  Master_User: rep

                  Master_Port: 3306

                Connect_Retry: 60

              Master_Log_File: mysql-bin_52.000106

          Read_Master_Log_Pos: 893

               Relay_Log_File: mysqld-relay-bin-r2.000005

                Relay_Log_Pos: 1183

        Relay_Master_Log_File: mysql-bin_52.000106

             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: 893

              Relay_Log_Space: 1633

              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: 2

               Master_SSL_Crl:

           Master_SSL_Crlpath:

                   Using_Gtid: No

                  Gtid_IO_Pos:

         Retried_transactions: 0

           Max_relay_log_size: 104857600

         Executed_log_entries: 28

    Slave_received_heartbeats: 4

       Slave_heartbeat_period: 1800.000

               Gtid_Slave_Pos:

2 rows inset (0.00 sec)

 

#单个通道初始化

MariaDB [r1]> reset slave 'r1'all;

ERROR 1198 (HY000): This operation cannot be performed as you have a running slave 'r1'; run STOP SLAVE 'r1' first

MariaDB [r1]> stop slave 'r1';

Query OK, 0 rows affected (0.03 sec)

 

MariaDB [r1]> reset slave 'r1'all;

Query OK, 0 rows affected (0.04 sec)

 

MariaDB [r1]> stop slave 'r2';

Query OK, 0 rows affected (0.02 sec)

 

MariaDB [r1]> reset slave 'r2'all;

Query OK, 0 rows affected (0.02 sec)

 

MariaDB [r1]> show allslaves status\G;

Empty set (0.00 sec)

 

#所有通道初始化

MariaDB [r1]> stop allslaves;

Query OK, 0 rows affected, 2warnings (0.05 sec)

 

MariaDB [r1]> show warnings;

+-------+------+--------------------+

|Level| Code |Message            |

+-------+------+--------------------+

| Note  |1938| SLAVE 'r2'stopped |

| Note  |1938| SLAVE 'r1'stopped |

+-------+------+--------------------+

2 rows inset (0.00 sec)

 

MariaDB [r1]> reset slave all;   #执行时候发现只能让r1初始化,不能初始化r2。所以初始化还是要单通道执行。

 

总结:

      经过上面的测试,实现了多个主实例的数据同步到一个从实例,这个就可以把集中做分析的数据表同步到一起进行分析处理,大大减少了数据的中间处理时间和安全,这里还有一点特别注意的是,在同步数据库的时候可以用过滤选项(Replicate_Do_TableReplicate_Ignore_TableReplicate_Wild_Do_TableReplicate_Wild_Ignore_Table),看着需要同步自己需要的表,不需要把没必要的也同步过来。

传统复制模式 -> 多源复制的命令变化

 

reset slave ->reset slave 'conn_erp',多个连接源名字

start slave ->start slave 'connection_name'或者start all slaves

show slave status ->show slave 'conn_mall' status,或者 show all slaves status查看所有的slave连接状态

sql_slave_skip_couter-> stop slave 'connection_name',先指定连接源名称 set@@default_master_connection='connection_name';然后再set global sql_slave_skip_counter=1;最后start slave 'connection_name'

多源复制环境下的replicate-...variables 变量问题

在my.cnf replicate_ignore_db 前添加conn连接串前缀,比如 r1.replicate_ignore_db=ignore_database若不加前缀,就是忽略所有同名的数据库,其他变量类推。


以上是关于MariaDB 多主一从 搭建测试的主要内容,如果未能解决你的问题,请参考以下文章

MySQL 5.7 Replication 相关新功能说明

演示一下在MySQL 5.7下搭建多主一从的过程

基于SymmetricDS的多主一从数据库同步方案

MySQL 5.7 多主一丛同步的数据库配置(将多处数据源合并到一点)

mysql多源复制(多主一从)配置

mysql多源复制(多主一从)配置