解決mysql 1032 主從錯誤

1032錯誤----現在生產庫中好多數據，在從庫誤刪了，生產庫更新后找不到了，現在主從不同步了，再跳過錯誤也沒用，因為沒這條，再更新還會報錯

臨時解決方案

mysql> stop slave;
Query OK, 0 rowsaffected (0.00 sec)
 
mysql> set global sql_slave_skip_counter=1;
ERROR 1193 (HY000):Unknown system variable 's_slave_skip_counter'
mysql> set global sql_slave_skip_counter=1;
Query OK, 0 rowsaffected (0.00 sec)
 
mysql> start slave;
Query OK, 0 rowsaffected (0.00 sec)

永久解決方案：

end_log_pos 有了它，根據pos值，直接就能找到，找到delete那條數據，反做（變成insert）

故障模擬：

HE1從庫誤刪

mysql> delete from helei where id=3;
Query OK, 1 rowaffected (0.29 sec)
 
mysql> select * from helei;
+----+------+
| id | text |
+----+------+
|  1 | aa  |
|  2 | bb  |
|  4 | ee  |
|  5 | ff  |
|  6 | gg  |
|  7 | hh  |
+----+------+
6 rows in set (0.00sec)
 
mysql> show slavestatus\G;
***************************1. row ***************************
               Slave_IO_State: Waiting formaster to send event
                  Master_Host: 192.168.1.250
                  Master_User: mysync
                  Master_Port: 2503306
                Connect_Retry: 60
              Master_Log_File: mysql-bin.000005
          Read_Master_Log_Pos: 3711
               Relay_Log_File:HE1-relay-bin.000007
                Relay_Log_Pos: 484
        Relay_Master_Log_File: mysql-bin.000005
             Slave_IO_Running: Yes
            Slave_SQL_Running: Yes

此時從庫狀態是正常的，但一旦主庫對該條記錄進行操作

 

 

HE3主庫更新從庫剛剛誤刪的數據

mysql> update helei set text='ccc' where id=3;
Query OK, 1 rowaffected (0.01 sec)
Rows matched: 1  Changed: 1 Warnings: 0
 
mysql> select *from helei;
+----+------+
| id | text |
+----+------+
|  1 | aa  |
|  2 | bb  |
|  3 | ccc |
|  4 | ee  |
|  5 | ff  |
|  6 | gg  |
|  7 | hh  |
+----+------+
7 rows in set (0.00sec)

 

 

 

HE1從庫報錯

mysql> show slave status\G;
***************************1. row ***************************
               Slave_IO_State: Waiting formaster to send event
                  Master_Host: 192.168.1.250
                  Master_User: mysync
                  Master_Port: 2503306
                Connect_Retry: 60
              Master_Log_File: mysql-bin.000005
          Read_Master_Log_Pos: 3918
               Relay_Log_File:HE1-relay-bin.000007
                Relay_Log_Pos: 484
        Relay_Master_Log_File: mysql-bin.000005
             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: <strong>1032</strong>
                   Last_Error: <strong>Could not execute Update_rows event on table test.helei; Can't find record in 'helei',Error_code: 1032; handler error HA_ERR_KEY_NOT_FOUND; the event's master logmysql-bin.000005, end_log_pos 3887</strong>
                 Skip_Counter: 0
          Exec_Master_Log_Pos: 3711
              Relay_Log_Space: 1626
              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: <strong>1032</strong>
              Last_SQL_Error: <strong>Could not execute Update_rows event on table test.helei;Can't find record in 'helei', Error_code: 1032; handler errorHA_ERR_KEY_NOT_FOUND; the event's master log mysql-bin.000005, end_log_pos 3887（這個mysql-bin.000005,end_log_pos3887是主庫的）</strong>
  Replicate_Ignore_Server_Ids:
             Master_Server_Id: 2503306
                  Master_UUID:f7c96432-f665-11e5-943f-000c2967a454
             Master_Info_File:/data/mysql/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: 160331 09:25:02
               Master_SSL_Crl:
           Master_SSL_Crlpath:
           Retrieved_Gtid_Set:
            Executed_Gtid_Set:
                Auto_Position: 0
1 row in set (0.00sec)

 

 

此時主從又不同步了,如果還去執行跳過錯誤操作，主從恢復同步，而且狀態均為yes，但！這並不能解決該問題，如果主庫又更新該條記錄，那么還是會報相同錯誤，而且pos號還會變，這就導致了恢復時你不知道前一條的pos號，導致丟失數據。

mysql> stop slave;
Query OK, 0 rowsaffected (0.00 sec)
 
mysql> set global sql_slave_skip_counter=1;
ERROR 1193 (HY000):Unknown system variable 's_slave_skip_counter'
mysql> set global sql_slave_skip_counter=1;
Query OK, 0 rowsaffected (0.00 sec)
 
mysql> start slave;
Query OK, 0 rowsaffected (0.00 sec)
 
mysql> select * from helei;
+----+--------+
| id | text   |
+----+--------+
|  1 | aa    |
|  2 | bb    |
|  4 | ee    |
|  5 | ff    |
|  6 | gg    |
|  7 | hh    |
|  8 | helei1 |
+----+--------+
7 rows in set (0.00sec)
 
mysql> show slave status\G;
***************************1. row ***************************
               Slave_IO_State: Waiting formaster to send event
                  Master_Host: 192.168.1.250
                  Master_User: mysync
                  Master_Port: 2503306
                Connect_Retry: 60
              Master_Log_File: mysql-bin.000005
          Read_Master_Log_Pos: 4119
               Relay_Log_File:HE1-relay-bin.000008
                Relay_Log_Pos: 283
        Relay_Master_Log_File: mysql-bin.000005
             Slave_IO_Running: <strong>Yes</strong>
            Slave_SQL_Running: <strong>Yes</strong>

 

這里雖然通過跳過錯誤達到恢復主從同步，但如果主庫又對該條記錄更新

mysql> update helei set text='cccc' where id=3;
Query OK, 1 rowaffected (0.00 sec)
mysql> show slave status\G;
***************************1. row ***************************
               Slave_IO_State: Waiting formaster to send event
                  Master_Host: 192.168.1.250
                  Master_User: mysync
                  Master_Port: 2503306
                Connect_Retry: 60
              Master_Log_File: mysql-bin.000005
          Read_Master_Log_Pos: 4328
               Relay_Log_File:HE1-relay-bin.000008
                Relay_Log_Pos: 283
        Relay_Master_Log_File: mysql-bin.000005
             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: 1032
                  Last_Error: Could not execute Update_rows event on table test.helei;Can't find record in 'helei', Error_code: 1032; handler errorHA_ERR_KEY_NOT_FOUND; the event's master log mysql-bin.000005, end_log_pos 4297
                 Skip_Counter: 0
          Exec_Master_Log_Pos: 4119
              Relay_Log_Space: 1435
              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: 1032
              Last_SQL_Error: Could not execute Update_rows event on table test.helei;Can't find record in 'helei', Error_code: 1032; handler errorHA_ERR_KEY_NOT_FOUND; the event's master log mysql-bin.000005, end_log_pos 4297
  Replicate_Ignore_Server_Ids:
             Master_Server_Id: 2503306
                  Master_UUID:f7c96432-f665-11e5-943f-000c2967a454
             Master_Info_File:/data/mysql/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: 160331 09:33:34
               Master_SSL_Crl:
           Master_SSL_Crlpath:
           Retrieved_Gtid_Set:
            Executed_Gtid_Set:
                Auto_Position: 0