Query OK, 0 rows affected (0.00 sec)
mysql> SHOW GRANTS FOR dex;
+----------------------------------------------------------------------------------------------------+
| Grants for dex@% |
+----------------------------------------------------------------------------------------------------+
| GRANT USAGE ON *.* TO 'dex'@'%' IDENTIFIED BY PASSWORD '*8FDE30312222738F1CD8AC8AF0EE515A9DB8180E' |
| GRANT ALL PRIVILEGES ON `sources`.`s` TO 'dex'@'%' |
+----------------------------------------------------------------------------------------------------+
2 rows in set (0.00 sec)
4. 查看target端是否安装了FEDERATED存储引擎
mysql> mysql> show engines ;
+--------------------+---------+----------------------------------------------------------------+--------------+------+------------+
| Engine | Support | Comment | Transactions | XA | Savepoints |
+--------------------+---------+----------------------------------------------------------------+--------------+------+------------+
| CSV | YES | CSV storage engine | NO | NO | NO |
| MRG_MYISAM | YES | Collection of identical MyISAM tables | NO | NO | NO |
| MyISAM | YES | MyISAM storage engine | NO | NO | NO |
| BLACKHOLE | YES | /dev/null storage engine (anything you write to it disappears) | NO | NO | NO |
| MEMORY | YES | Hash based, stored in memory, useful for temporary tables | NO | NO | NO |
| FEDERATED | NO | Federated MySQL storage engine | NULL | NULL | NULL |
| ARCHIVE | YES | Archive storage engine | NO | NO | NO |
| InnoDB | DEFAULT | Supports transactions, row-level locking, and foreign keys | YES | YES | YES |
| PERFORMANCE_SCHEMA | YES | Performance Schema | NO | NO | NO |
+--------------------+---------+----------------------------------------------------------------+--------------+------+------------+
9 rows in set (0.00 sec)
看到没有安装federated存储引擎（目标端可以是任何的存储引擎比如说myisam或者innodb）
4.1 先来安装federated存储引擎
install plugin federated soname 'ha_federated.so';
mysql> install plugin federated soname 'ha_federated.so';
ERROR 1125 (HY000): Function 'federated' already exists
已经安装好了，只是没有启用
测试一下是否可以
[root@rhel6Mysql02 ~]# mysqld_safe --federated &
[1] 2194
[root@rhel6Mysql02 ~]# 130620 18:12:28 mysqld_safe Logging to '/var/lib/mysql/rhel6Mysql02.err'.
130620 18:12:28 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql
mysql> show engines ;
+--------------------+---------+----------------------------------------------------------------+--------------+------+------------+
| Engine | Support | Comment | Transactions | XA | Savepoints |
+--------------------+---------+----------------------------------------------------------------+--------------+------+------------+
| CSV | YES | CSV storage engine | NO | NO | NO |
| MRG_MYISAM | YES | Collection of identical MyISAM tables | NO | NO | NO |
| MyISAM | YES | MyISAM storage engine | NO | NO | NO |
| BLACKHOLE | YES | /dev/null storage engine (anything you write to it disappears) | NO | NO | NO |
| MEMORY | YES | Hash based, stored in memory, useful for temporary tables | NO | NO | NO |
| FEDERATED | YES | Federated MySQL storage engine | NO | NO | NO |
| ARCHIVE | YES | Archive storage engine | NO | NO | NO |
| InnoDB | DEFAULT | Supports transactions, row-level locking, and foreign keys | YES | YES | YES |
| PERFORMANCE_SCHEMA | YES | Performance Schema | NO | NO | NO |
+-----------