MySQL

The all too common MySQL ‘Duplicate entry’ Error. mysql> show slave status\G; *************************** 1. row ***************************                Slave_IO_State: Waiting for master to send event                   Master_Host: master-mysql.local                   Master_User: repl                   Master_Port: 3306                 Connect_Retry: 60               Master_Log_File: mysql-bin.004768           Read_Master_Log_Pos: 1022786917                Relay_Log_File: relay-bin.001728                 Relay_Log_Pos: 929659721         Relay_Master_Log_File: mysql-bin.004768              Slave_IO_Running: Yes             Slave_SQL_Running: No               Replicate_Do_DB:            Replicate_Ignore_DB: information_schema,mysql            Replicate_Do_Table:         Replicate_Ignore_Table:       Replicate_Wild_Do_Table:    Replicate_Wild_Ignore_Table:                     Last_Errno: 1062                    Last_Error:…

MariaDB is a fork of the MySQL; it is notable for being led by the original developers of MySQL and is community-developed. The original developers forked it due to concerns over its acquisition by Oracle. MariaDB intends to be a “drop-in” replacement for MySQL, ensuring capability with library binary and matching with MySQL APIs and…

If you have already created your database and you change the setting for “innodb_log_file_size=###M” and restart here you database and get an error that looks something like InnoDB: Error: log file ./ib_logfile0 is of different size 0 5242880 bytes Here what you need to do. 1.) Make sure your database shutdown clean. 2.) Move(not delete)…