数据库创建完后主从数据库数据保持同步

  • 主数据库
  1. mysql> SHOW MASTER STATUS;
  2. +------------------+----------+--------------+------------------+-------------------------------------------+
  3. | File             | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set                         |
  4. +------------------+----------+--------------+------------------+-------------------------------------------+
  5. | mysql-bin.000002 |     4062 |              |                  | 53e34b1a-e675-11ee-bd7e-fa163e6a9cd8:1-17 |
  6. +------------------+----------+--------------+------------------+-------------------------------------------+
  7. 1 row in set (0.00 sec)
  9. mysql> show global variables like '%gtid%';
  10. +----------------------------------+-------------------------------------------+
  11. | Variable_name                    | Value                                     |
  12. +----------------------------------+-------------------------------------------+
  13. | binlog_gtid_simple_recovery      | ON                                        |
  14. | enforce_gtid_consistency         | ON                                        |
  15. | gtid_executed                    | 53e34b1a-e675-11ee-bd7e-fa163e6a9cd8:1-17 |
  16. | gtid_executed_compression_period | 1000                                      |
  17. | gtid_mode                        | ON                                        |
  18. | gtid_owned                       |                                           |
  19. | gtid_purged                      |                                           |
  20. | session_track_gtids              | OFF                                       |
  21. +----------------------------------+-------------------------------------------+
  22. 8 rows in set (0.00 sec)
  1. # mysqlbinlog mysql-bin.000002
  2. /*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
  3. /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
  4. DELIMITER /*!*/;
  5. # at 4
  6. #240320 12:50:13 server id 3225616916  end_log_pos 123 CRC32 0x3eeed942         Start: binlog v 4, server v 5.7.39-log created 240320 12:50:13 at startup
  7. # Warning: this binlog is either in use or was not closed properly.
  8. ROLLBACK/*!*/;
  9. BINLOG '
  10. BWv6ZQ8UAkPAdwAAAHsAAAABAAQANS43LjM5LWxvZwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
  11. AAAAAAAAAAAAAAAAAAAFa/plEzgNAAgAEgAEBAQEEgAAXwAEGggAAAAICAgCAAAACgoKKioAEjQA
  12. AULZ7j4=
  13. '/*!*/;
  14. # at 123
  15. #240320 12:50:13 server id 3225616916  end_log_pos 154 CRC32 0xaa49709d         Previous-GTIDs
  16. # [empty]
  17. # at 154
  18. #240320 12:50:15 server id 3225616916  end_log_pos 219 CRC32 0xcc611e3e         GTID    last_committed=0        sequence_number=1       rbr_only=no
  19. SET @@SESSION.GTID_NEXT= '53e34b1a-e675-11ee-bd7e-fa163e6a9cd8:1'/*!*/;
  20. ...
  21. ...
  22. ...
  24. # at 3200
  25. #240320 12:50:15 server id 3225616916  end_log_pos 3434 CRC32 0xeb895228        Query   thread_id=2     exec_time=0     error_code=0
  26. SET TIMESTAMP=1710910215/*!*/;
  27. GRANT SELECT, INSERT, CREATE, RELOAD, PROCESS, SUPER, LOCK TABLES, REPLICATION SLAVE, REPLICATION CLIENT, CREATE TABLESPACE ON *.* TO 'bkpuser'@'%'
  28. /*!*/;
  29. # at 3434
  30. #240320 12:50:15 server id 3225616916  end_log_pos 3499 CRC32 0x8ef83223        GTID    last_committed=14       sequence_number=15      rbr_only=no
  31. SET @@SESSION.GTID_NEXT= '53e34b1a-e675-11ee-bd7e-fa163e6a9cd8:15'/*!*/;
  32. # at 3499
  33. #240320 12:50:15 server id 3225616916  end_log_pos 3689 CRC32 0xdca92acb        Query   thread_id=2     exec_time=0     error_code=0
  34. SET TIMESTAMP=1710910215/*!*/;
  35. CREATE USER 'proxy_sql_user'@'%' IDENTIFIED WITH 'mysql_native_password' AS '*31C6AAAA2E813546EF9E161596C267B66629F00E'
  36. /*!*/;
  37. # at 3689
  38. #240320 12:50:15 server id 3225616916  end_log_pos 3754 CRC32 0xb97d3937        GTID    last_committed=15       sequence_number=16      rbr_only=no
  39. SET @@SESSION.GTID_NEXT= '53e34b1a-e675-11ee-bd7e-fa163e6a9cd8:16'/*!*/;
  40. # at 3754
  41. #240320 12:50:15 server id 3225616916  end_log_pos 3910 CRC32 0x7280f9cc        Query   thread_id=2     exec_time=0     error_code=0
  42. SET TIMESTAMP=1710910215/*!*/;
  43. GRANT ALL PRIVILEGES ON *.* TO 'proxy_sql_user'@'%' WITH GRANT OPTION
  44. /*!*/;
  45. # at 3910
  46. #240320 12:50:15 server id 3225616916  end_log_pos 3975 CRC32 0xf79946ef        GTID    last_committed=16       sequence_number=17      rbr_only=no
  47. SET @@SESSION.GTID_NEXT= '53e34b1a-e675-11ee-bd7e-fa163e6a9cd8:17'/*!*/;
  48. # at 3975
  49. #240320 12:50:15 server id 3225616916  end_log_pos 4062 CRC32 0x15c4ea73        Query   thread_id=2     exec_time=0     error_code=0
  50. SET TIMESTAMP=1710910215/*!*/;
  51. SET @@session.time_zone='SYSTEM'/*!*/;
  52. flush privileges
  53. /*!*/;
  54. SET @@SESSION.GTID_NEXT= 'AUTOMATIC' /* added by mysqlbinlog */ /*!*/;
  55. DELIMITER ;
  56. # End of log file
  57. /*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
  58. /*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;
  • 从数据库
  1. mysql> SHOW SLAVE STATUS\G
  2. *************************** 1. row ***************************
  3.                Slave_IO_State: Waiting for master to send event
  4.                   Master_Host: 192.67.2.20
  5.                   Master_User: cdbsync
  6.                   Master_Port: 3306
  7.                 Connect_Retry: 60
  8.               Master_Log_File: mysql-bin.000002
  9.           Read_Master_Log_Pos: 4062
  10.                Relay_Log_File: mysqlseca208g-mysql-master-2-11c17-0-relay-bin.000002
  11.                 Relay_Log_Pos: 4275
  12.         Relay_Master_Log_File: mysql-bin.000002
  13.              Slave_IO_Running: Yes
  14.             Slave_SQL_Running: Yes
  15.               Replicate_Do_DB:
  16.           Replicate_Ignore_DB:
  17.            Replicate_Do_Table:
  18.        Replicate_Ignore_Table:
  19.       Replicate_Wild_Do_Table:
  20.   Replicate_Wild_Ignore_Table:
  21.                    Last_Errno: 0
  22.                    Last_Error:
  23.                  Skip_Counter: 0
  24.           Exec_Master_Log_Pos: 4062
  25.               Relay_Log_Space: 4513
  26.               Until_Condition: None
  27.                Until_Log_File:
  28.                 Until_Log_Pos: 0
  29.            Master_SSL_Allowed: No
  30.            Master_SSL_CA_File:
  31.            Master_SSL_CA_Path:
  32.               Master_SSL_Cert:
  33.             Master_SSL_Cipher:
  34.                Master_SSL_Key:
  35.         Seconds_Behind_Master: 0
  36. Master_SSL_Verify_Server_Cert: No
  37.                 Last_IO_Errno: 0
  38.                 Last_IO_Error:
  39.                Last_SQL_Errno: 0
  40.                Last_SQL_Error:
  41.   Replicate_Ignore_Server_Ids:
  42.              Master_Server_Id: 3225616916
  43.                   Master_UUID: 53e34b1a-e675-11ee-bd7e-fa163e6a9cd8
  44.              Master_Info_File: mysql.slave_master_info
  45.                     SQL_Delay: 0
  46.           SQL_Remaining_Delay: NULL
  47.       Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
  48.            Master_Retry_Count: 86400
  49.                   Master_Bind:
  50.       Last_IO_Error_Timestamp:
  51.      Last_SQL_Error_Timestamp:
  52.                Master_SSL_Crl:
  53.            Master_SSL_Crlpath:
  54.            Retrieved_Gtid_Set: 53e34b1a-e675-11ee-bd7e-fa163e6a9cd8:1-17
  55.             Executed_Gtid_Set: 53e34b1a-e675-11ee-bd7e-fa163e6a9cd8:1-17
  56.                 Auto_Position: 1
  57.          Replicate_Rewrite_DB:
  58.                  Channel_Name:
  59.            Master_TLS_Version:
  60. 1 row in set (0.00 sec)
  62. mysql> show global variables like '%gtid%';
  63. +----------------------------------+-------------------------------------------+
  64. | Variable_name                    | Value                                     |
  65. +----------------------------------+-------------------------------------------+
  66. | binlog_gtid_simple_recovery      | ON                                        |
  67. | enforce_gtid_consistency         | ON                                        |
  68. | gtid_executed                    | 53e34b1a-e675-11ee-bd7e-fa163e6a9cd8:1-17 |
  69. | gtid_executed_compression_period | 1000                                      |
  70. | gtid_mode                        | ON                                        |
  71. | gtid_owned                       |                                           |
  72. | gtid_purged                      |                                           |
  73. | session_track_gtids              | OFF                                       |
  74. +----------------------------------+-------------------------------------------+
  75. 8 rows in set (0.00 sec)
参数 主库 从库
Executed_Gtid_Set 53e34b1a-e675-11ee-bd7e-fa163e6a9cd8:1-17 53e34b1a-e675-11ee-bd7e-fa163e6a9cd8:1-17
binlog文件名称 mysql-bin.000002 mysql-bin.000002（ Relay_Master_Log_File）
Position 4062 4062（Read_Master_Log_Pos）
Exec_Master_Log_Pos 无 4062

主库创建一个TEST库,查看从库同步状态

  • 主库
  1. mysql> CREATE DATABASE TEST;
  2. Query OK, 1 row affected (0.00 sec)
  4. mysql> SHOW DATABASES;
  5. +--------------------+
  6. | Database           |
  7. +--------------------+
  8. | information_schema |
  9. | TEST               |
  10. | mysql              |
  11. | performance_schema |
  12. | sys                |
  13. +--------------------+
  14. 5 rows in set (0.00 sec)
  16. mysql> SHOW MASTER STATUS;
  17. +------------------+----------+--------------+------------------+-------------------------------------------+
  18. | File             | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set                         |
  19. +------------------+----------+--------------+------------------+-------------------------------------------+
  20. | mysql-bin.000002 |     4221 |              |                  | 53e34b1a-e675-11ee-bd7e-fa163e6a9cd8:1-18 |
  21. +------------------+----------+--------------+------------------+-------------------------------------------+
  22. 1 row in set (0.00 sec)
  24. mysql> show global variables like '%gtid%';
  25. +----------------------------------+-------------------------------------------+
  26. | Variable_name                    | Value                                     |
  27. +----------------------------------+-------------------------------------------+
  28. | binlog_gtid_simple_recovery      | ON                                        |
  29. | enforce_gtid_consistency         | ON                                        |
  30. | gtid_executed                    | 53e34b1a-e675-11ee-bd7e-fa163e6a9cd8:1-18 |
  31. | gtid_executed_compression_period | 1000                                      |
  32. | gtid_mode                        | ON                                        |
  33. | gtid_owned                       |                                           |
  34. | gtid_purged                      |                                           |
  35. | session_track_gtids              | OFF                                       |
  36. +----------------------------------+-------------------------------------------+
  37. 8 rows in set (0.00 sec)
  • 从库

    从库的Retrieved_Gtid_Set、Executed_Gtid_Set均是53e34b1a-e675-11ee-bd7e-fa163e6a9cd8:1-18，和主库一致。
  1. mysql> SHOW SLAVE STATUS\G
  2. *************************** 1. row ***************************
  3.                Slave_IO_State: Waiting for master to send event
  4.                   Master_Host: 192.67.2.20
  5.                   Master_User: cdbsync
  6.                   Master_Port: 3306
  7.                 Connect_Retry: 60
  8.               Master_Log_File: mysql-bin.000002
  9.           Read_Master_Log_Pos: 4221
  10.                Relay_Log_File: mysqlseca208g-mysql-master-2-11c17-0-relay-bin.000002
  11.                 Relay_Log_Pos: 4434
  12.         Relay_Master_Log_File: mysql-bin.000002
  13.              Slave_IO_Running: Yes
  14.             Slave_SQL_Running: Yes
  15.               Replicate_Do_DB:
  16.           Replicate_Ignore_DB:
  17.            Replicate_Do_Table:
  18.        Replicate_Ignore_Table:
  19.       Replicate_Wild_Do_Table:
  20.   Replicate_Wild_Ignore_Table:
  21.                    Last_Errno: 0
  22.                    Last_Error:
  23.                  Skip_Counter: 0
  24.           Exec_Master_Log_Pos: 4221
  25.               Relay_Log_Space: 4672
  26.               Until_Condition: None
  27.                Until_Log_File:
  28.                 Until_Log_Pos: 0
  29.            Master_SSL_Allowed: No
  30.            Master_SSL_CA_File:
  31.            Master_SSL_CA_Path:
  32.               Master_SSL_Cert:
  33.             Master_SSL_Cipher:
  34.                Master_SSL_Key:
  35.         Seconds_Behind_Master: 0
  36. Master_SSL_Verify_Server_Cert: No
  37.                 Last_IO_Errno: 0
  38.                 Last_IO_Error:
  39.                Last_SQL_Errno: 0
  40.                Last_SQL_Error:
  41.   Replicate_Ignore_Server_Ids:
  42.              Master_Server_Id: 3225616916
  43.                   Master_UUID: 53e34b1a-e675-11ee-bd7e-fa163e6a9cd8
  44.              Master_Info_File: mysql.slave_master_info
  45.                     SQL_Delay: 0
  46.           SQL_Remaining_Delay: NULL
  47.       Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
  48.            Master_Retry_Count: 86400
  49.                   Master_Bind:
  50.       Last_IO_Error_Timestamp:
  51.      Last_SQL_Error_Timestamp:
  52.                Master_SSL_Crl:
  53.            Master_SSL_Crlpath:
  54.            Retrieved_Gtid_Set: 53e34b1a-e675-11ee-bd7e-fa163e6a9cd8:1-18
  55.             Executed_Gtid_Set: 53e34b1a-e675-11ee-bd7e-fa163e6a9cd8:1-18
  56.                 Auto_Position: 1
  57.          Replicate_Rewrite_DB:
  58.                  Channel_Name:
  59.            Master_TLS_Version:
  60. 1 row in set (0.00 sec)

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