MySQL主从报错解决：Table ‘mysql.gtid_slave_pos’ doesn’t exist
导读
给内部一个数据库做异地热备，热备部分采用了 MariaDB 的 galera 集群模式。然后挑选其中一台作为 Slave 和深圳主集群做主从同步。
主集群是老环境，用的版本还是是 MySQL 5.5.13。用常规办法创建主从同步
MariaDB [(none)]>change master to master_host='192.168.1.100',master_user='rpl',master_password='rpl@201809',master_log_file='mysql-bin.001091',MASTER_LOG_POS=137962110,master_connect_retry=30; MariaDB [(none)]>start slave;
结果有如下报错：
MariaDB [(none)]> show slave status\G *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 192.168.1.100 Master_User: rpl Master_Port: 3306 Connect_Retry: 30 Master_Log_File: mysql-bin.001093 Read_Master_Log_Pos: 77139171 Relay_Log_File: udb158-relay-bin.000002 Relay_Log_Pos: 237764027 Relay_Master_Log_File: mysql-bin.001091 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: 1146 Last_Error: Unable to load replication GTID slave state from mysql.gtid_slave_pos: Table 'mysql.gtid_slave_pos' doesn't exist Skip_Counter: 0 Exec_Master_Log_Pos: 375725743 Relay_Log_Space: 2086663884 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: 105914 Master_SSL_Verify_Server_Cert: No Last_IO_Errno: 0 Last_IO_Error: Last_SQL_Errno: 1146 Last_SQL_Error: Unable to load replication GTID slave state from mysql.gtid_slave_pos: Table 'mysql.gtid_slave_pos' doesn't exist Replicate_Ignore_Server_Ids: Master_Server_Id: 15410 Master_SSL_Crl: Master_SSL_Crlpath: Using_Gtid: No Gtid_IO_Pos: 1 row in set (0.00 sec)
错误信息为：Last_SQL_Error: Unable to load replication GTID slave state from mysql.gtid_slave_pos: Table 'mysql.gtid_slave_pos' doesn't exist
搜了下资料，大部分说是没有执行 mysql_upgrade 导致的，不过我们这边的 MariaDB 是 Docker 跑的，而且用了很长时间了，理论上应该是没问题的才对。
既然提示没有这个表：Table 'mysql.gtid_slave_pos' doesn't exist，那我就创建一个吧！
从网上找到这个建表语句：
CREATE TABLE `gtid_slave_pos` ( `domain_id` int(10) unsigned NOT NULL, `sub_id` bigint(20) unsigned NOT NULL, `server_id` int(10) unsigned NOT NULL, `seq_no` bigint(20) unsigned NOT NULL, PRIMARY KEY (`domain_id`,`sub_id`) ) ENGINE=MyISAM DEFAULT CHARSET=utf8 COMMENT='Replication slave GTID state';
在作为 Slave 的 MariaDB 上执行，然后重启 slave 后问题解决，过程如下：
MariaDB [(none)]> show slave status\G *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 192.168.1.100 Master_User: rpl Master_Port: 3306 Connect_Retry: 30 Master_Log_File: mysql-bin.001093 Read_Master_Log_Pos: 77139171 Relay_Log_File: udb158-relay-bin.000002 Relay_Log_Pos: 237764027 Relay_Master_Log_File: mysql-bin.001091 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: 1146 Last_Error: Unable to load replication GTID slave state from mysql.gtid_slave_pos: Table 'mysql.gtid_slave_pos' doesn't exist Skip_Counter: 0 Exec_Master_Log_Pos: 375725743 Relay_Log_Space: 2086663884 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: 105914 Master_SSL_Verify_Server_Cert: No Last_IO_Errno: 0 Last_IO_Error: Last_SQL_Errno: 1146 Last_SQL_Error: Unable to load replication GTID slave state from mysql.gtid_slave_pos: Table 'mysql.gtid_slave_pos' doesn't exist Replicate_Ignore_Server_Ids: Master_Server_Id: 15410 Master_SSL_Crl: Master_SSL_Crlpath: Using_Gtid: No Gtid_IO_Pos: 1 row in set (0.00 sec) MariaDB [(none)]> use mysql; Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A Database changed MariaDB [mysql]> CREATE TABLE `gtid_slave_pos` ( -> `domain_id` int(10) unsigned NOT NULL, -> `sub_id` bigint(20) unsigned NOT NULL, -> `server_id` int(10) unsigned NOT NULL, -> `seq_no` bigint(20) unsigned NOT NULL, -> PRIMARY KEY (`domain_id`,`sub_id`) -> ) ENGINE=MyISAM DEFAULT CHARSET=utf8 COMMENT='Replication slave GTID state'; Query OK, 0 rows affected (0.01 sec) MariaDB [mysql]> stop slave; Query OK, 0 rows affected (0.04 sec) MariaDB [mysql]> start slave; Query OK, 0 rows affected (0.00 sec) MariaDB [mysql]> show slave status\G *************************** 1. row *************************** Slave_IO_State: Queueing master event to the relay log Master_Host: 192.168.1.100 Master_User: rpl Master_Port: 3306 Connect_Retry: 30 Master_Log_File: mysql-bin.001093 Read_Master_Log_Pos: 1059879280 Relay_Log_File: udb158-relay-bin.000002 Relay_Log_Pos: 390833600 Relay_Master_Log_File: mysql-bin.001091 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: 528795316 Relay_Log_Space: 3069404437 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: 101616 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: 15410 Master_SSL_Crl: Master_SSL_Crlpath: Using_Gtid: No Gtid_IO_Pos: 1 row in set (0.00 sec) MariaDB [mysql]>
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