На лекции рассматривались режимы репликации master-slave, master-master, опишите их различия.
режим репликации master-master отличен от master-slave тем что в режиме master-master можно писать информацию на оба master`a, а в режиме master-slave инфрмацию пишет на master, а slave реплицирует на себя информацию (можно с него только считывать информацию).
Выполните конфигурацию master-slave репликации, примером можно пользоваться из лекции.
master server:
mysql> SHOW TABLES;
+-------------------+
| Tables_in_lekciya |
+-------------------+
| Persons |
+-------------------+
1 row in set (0.00 sec)
slave server:
mysql> show tables;
+-------------------+
| Tables_in_lekciya |
+-------------------+
| Persons |
+-------------------+
1 row in set (0.00 sec)
mysql> SHOW SLAVE STATUS\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for source to send event
Master_Host: 10.5.0.2
Master_User: replication
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000001
Read_Master_Log_Pos: 351
Relay_Log_File: mysql-relay-bin.000002
Relay_Log_Pos: 326
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:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 351
Relay_Log_Space: 536
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_UUID: 0c413976-d13e-11ec-9d16-02420a050002
Master_Info_File: mysql.slave_master_info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Replica 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:
Channel_Name:
Master_TLS_Version:
Master_public_key_path:
Get_master_public_key: 0
Network_Namespace:
1 row in set, 1 warning (0.01 sec)