MySQL 5.7.9多源复制报错修复

版本：5.7.9

用5.7.9的版本搭建MySQL多源复制测试环境

开发说复制出现问题，上去看了一下：

mysql> show slave status\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 182.2.2.11
Master_User: repl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000001
Read_Master_Log_Pos: 95459627
Relay_Log_File: relay-bin-finance.000002
Relay_Log_Pos: 1479683
Relay_Master_Log_File: mysql-bin.000001
Slave_IO_Running: Yes
Slave_SQL_Running: No
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table: A.%,B.%,C.%,D.%,E.%,F.%
Replicate_Wild_Ignore_Table:
Last_Errno: 1061
Last_Error: Error 'Duplicate key name 'index_ShippingId_WareId'' on query. Default database: 'B'. Query: 'alter table `swc_relation` add index `index_ShippingId_WareId` (`ShippingId`, `WareId`)'
Skip_Counter: 0
Exec_Master_Log_Pos: 95092986
Relay_Log_Space: 1848783
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: 1061
Last_SQL_Error: Error 'Duplicate key name 'index_ShippingId_WareId'' on query. Default database: 'B'. Query: 'alter table `swc_relation` add index `index_ShippingId_WareId` (`ShippingId`, `WareId`)'
Replicate_Ignore_Server_Ids:
Master_Server_Id: 2213306
Master_UUID: 67b146d5-7958-11e5-a908-f8bc123d566c
Master_Info_File: mysql.slave_master_info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State:
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp: 151124 13:33:41
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set:
Auto_Position: 0
Replicate_Rewrite_DB: (A,B)
Channel_Name: A
*************************** 2. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.178.9.69
Master_User: repl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000001
Read_Master_Log_Pos: 992559812
Relay_Log_File: relay-bin-jxorder.000012
Relay_Log_Pos: 152738
Relay_Master_Log_File: mysql-bin.000001
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table: A.%,B.%,C.%,D.%,E.%,F.%
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 992559812
Relay_Log_Space: 460320
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: 569
Master_UUID: d0b6e95c-65ae-11e5-a494-52540064d608
Master_Info_File: mysql.slave_master_info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
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
Replicate_Rewrite_DB: (A,B)
Channel_Name: C
*************************** 3. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.178.9.79
Master_User: repl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000024
Read_Master_Log_Pos: 731827753
Relay_Log_File: relay-bin-jxtms.000055
Relay_Log_Pos: 3017204
Relay_Master_Log_File: mysql-bin.000024
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table: A.%,B.%,C.%,D.%,E.%,F.%
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 731827753
Relay_Log_Space: 11134306
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: 579
Master_UUID: bc039305-66c9-11e5-abc9-5254007ce9e7
Master_Info_File: mysql.slave_master_info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
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
Replicate_Rewrite_DB: (A,B)
Channel_Name: D
*************************** 4. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.178.9.71
Master_User: repl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000002
Read_Master_Log_Pos: 520645176
Relay_Log_File: relay-bin-jxuser.000012
Relay_Log_Pos: 4905
Relay_Master_Log_File: mysql-bin.000002
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table: A.%,B.%,C.%,D.%,E.%,F.%
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 520645176
Relay_Log_Space: 13313
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: 571
Master_UUID: 7e03aa04-6263-11e5-8f1a-52540017c59d
Master_Info_File: mysql.slave_master_info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
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
Replicate_Rewrite_DB: (F,B)
Channel_Name: E
*************************** 5. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.178.9.75
Master_User: repl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000001
Read_Master_Log_Pos: 138975499
Relay_Log_File: relay-bin-zntg.000012
Relay_Log_Pos: 317
Relay_Master_Log_File: mysql-bin.000001
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table: A.%,B.%,C.%,D.%,E.%,F.%
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 138975499
Relay_Log_Space: 686
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: 575
Master_UUID: 8fb63b55-65bb-11e5-a4e8-5254007637de
Master_Info_File: mysql.slave_master_info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
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
Replicate_Rewrite_DB: (A,B)
Channel_Name: ZN
5 rows in set (0.00 sec)

由于存在重复的索引名，导致报错主从失效，通过sql_slave_skip_counter直接进行过滤

按照常规方法进行发现报错
mysql> set global sql_slave_skip_counter = 1;

mysql>stop slave ;

mysql>start slave;
ERROR 3086 (HY000): When sql_slave_skip_counter > 0, it is not allowed to start more than one SQL thread by using 'START SLAVE [SQL_THREAD]'. Value of sql_slave_skip_counter can only be used by one SQL thread at a time. Please use 'START SLAVE [SQL_THREAD] FOR CHANNEL' to start the SQL thread which will use the value of sql_slave_skip_counter.

mysql> set global sql_slave_skip_counter = 0;

mysql> start slave;

mysql>show slave status for channel 'A'\G ## channel = 'A' 不能用“=”
Slave_IO_State: Waiting for master to send event
Master_Host: 182.2.2.11
Master_User: repl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000001
Read_Master_Log_Pos: 95459627
Relay_Log_File: relay-bin-finance.000002
Relay_Log_Pos: 1479683
Relay_Master_Log_File: mysql-bin.000001
Slave_IO_Running: Yes
Slave_SQL_Running: No
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table: A.%,B.%,C.%,D.%,E.%,F.%
Replicate_Wild_Ignore_Table:
Last_Errno: 1061
Last_Error: Error 'Duplicate key name 'index_ShippingId_WareId'' on query. Default database: 'B'. Query: 'alter table `swc_relation` add index `index_ShippingId_WareId` (`ShippingId`, `WareId`)'
Skip_Counter: 0
Exec_Master_Log_Pos: 95092986
Relay_Log_Space: 1848783
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: 1061
Last_SQL_Error: Error 'Duplicate key name 'index_ShippingId_WareId'' on query. Default database: 'B'. Query: 'alter table `swc_relation` add index `index_ShippingId_WareId` (`ShippingId`, `WareId`)'
Replicate_Ignore_Server_Ids:
Master_Server_Id: 2213306
Master_UUID: 67b146d5-7958-11e5-a908-f8bc123d566c
Master_Info_File: mysql.slave_master_info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State:
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp: 151124 13:33:41
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set:
Auto_Position: 0
Replicate_Rewrite_DB: (A,B)
Channel_Name: A

mysql> set global sql_slave_skip_counter = 1;

mysql> start slave for channel 'A';

mysql> show slave status for channel 'A'\G
Slave_IO_State: Waiting for master to send event
Master_Host: 182.2.2.11
Master_User: repl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000001
Read_Master_Log_Pos: 95533635
Relay_Log_File: relay-bin-finance.000009
Relay_Log_Pos: 65660
Relay_Master_Log_File: mysql-bin.000001
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table: A.%,B.%,C.%,D.%,E.%,F.%
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 95533635
Relay_Log_Space: 109705
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: 2213306
Master_UUID: 67b146d5-7958-11e5-a908-f8bc123d566c
Master_Info_File: mysql.slave_master_info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
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
Replicate_Rewrite_DB: (A,B)
Channel_Name: A
1 row in set (0.00 sec)

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