標籤:magedu mysql 主從複製 豌豆
Mariadb的主從複製
mysql的擴充模式:主從
讀寫分離基於MHA實現
主伺服器配置
*修改設定檔
[[email protected] ~]# vim /etc/my.cnf.d/server.cnf
[mysqld]server-id=1log-bin=master-loginnodb_file_per_table=ONskip_name_resolve=ON
[[email protected] ~]# systemctl start mariadb[[email protected] ~]# mysql Welcome to the MariaDB monitor. Commands end with ; or \g.Your MariaDB connection id is 2Server version: 5.5.44-MariaDB-log MariaDB ServerCopyright (c) 2000, 2015, Oracle, MariaDB Corporation Ab and others.Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement.MariaDB [(none)]> show binary logs;+-------------------+-----------+| Log_name | File_size |+-------------------+-----------+| master-log.000001 | 245 |+-------------------+-----------+1 row in set (0.00 sec)MariaDB [(none)]> grant replication slave,replication client on *.* to ‘repluser‘@‘172.16.%.%‘ identified by ‘replpass‘;Query OK, 0 rows affected (0.00 sec)MariaDB [(none)]> flush privileges;Query OK, 0 rows affected (0.00 sec)MariaDB [(none)]> show binary logs;+-------------------+-----------+| Log_name | File_size |+-------------------+-----------+| master-log.000001 | 496 |+-------------------+-----------+1 row in set (0.00 sec)MariaDB [(none)]>
從伺服器配置
[[email protected] ~]# vim /etc/my.cnf.d/server.cnf
[mysqld]server-id=2relay-log=relay-loginnodb_file_per_table=ONskip_name_resolve=ON
[[email protected] ~]# systemctl start mariadb[[email protected] ~]# mysqlWelcome to the MariaDB monitor. Commands end with ; or \g.Your MariaDB connection id is 2Server version: 5.5.44-MariaDB MariaDB ServerCopyright (c) 2000, 2015, Oracle, MariaDB Corporation Ab and others.Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement.MariaDB [(none)]> change master to master_host=‘172.16.80.6‘,master_user=‘repluser‘,master_password=‘replpass‘,master_log_file=‘master-log.000003,master_log_pos=496‘;Query OK, 0 rows affected (0.01 sec)MariaDB [(none)]>
/var/lib/mysql/relay-log.info 該檔案記錄從主伺服器的哪個日誌開始複製
/var/lib/mysql/relay-master.info 該檔案記錄主伺服器地址,帳號密碼資訊
MariaDB [(none)]> start slave;Query OK, 0 rows affected (0.00 sec)MariaDB [(none)]> show slave status\G;*************************** 1. row *************************** Slave_IO_State: Master_Host: 172.16.80.6 Master_User: repluser Master_Port: 3306 Connect_Retry: 60 Master_Log_File: master-log.000001,master_log_pos=496 Read_Master_Log_Pos: 4 Relay_Log_File: relay-log.000001 Relay_Log_Pos: 4 Relay_Master_Log_File: master-log.000001,master_log_pos=496 Slave_IO_Running: No 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: 4 Relay_Log_Space: 245 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: NULLMaster_SSL_Verify_Server_Cert: No Last_IO_Errno: 1236 Last_IO_Error: Got fatal error 1236 from master when reading data from binary log: ‘Could not find first log file name in binary log index file‘ Last_SQL_Errno: 0 Last_SQL_Error: Replicate_Ignore_Server_Ids: Master_Server_Id: 1
此時,Slave_IO_Running,Slave_SQL_Running均應為yes,即可開始從主伺服器上複製
主主模式
就是使用AB雙伺服器分別進行授權;
本文出自 “guo_ruilin” 部落格,請務必保留此出處http://guoruilin198.blog.51cto.com/12567311/1908306
Mariadb學習筆記-主從複製