MySQL 5.6服务器初始化脚本添加了以下的插件表，而实际上MySQL 5.6不依赖于任何插件， 4 rows affected (0.00 sec) 删掉这4个插件。

可以看到，清除日志，其日志文件存在如下错误： ...... 2015-10-28 13:27:05 25054 [ERROR] Function innodb already exists 2015-10-28 13:27:05 25054 [Warning] Couldnt load plugin named innodb with soname ha_innodb.so. 2015-10-28 13:27:05 25054 [ERROR] Function federated already exists 2015-10-28 13:27:05 25054 [Warning] Couldnt load plugin named federated with soname ha_federated.so. 2015-10-28 13:27:05 25054 [ERROR] Function blackhole already exists 2015-10-28 13:27:05 25054 [Warning] Couldnt load plugin named blackhole with soname ha_blackhole.so. 2015-10-28 13:27:05 25054 [ERROR] Function archive already exists 2015-10-28 13:27:05 25054 [Warning] Couldnt load plugin named archive with soname ha_archive.so. ...... 分析原因。

MySQL在Ubuntu系统的三种自启动方法： ubuntu15.04 mysql字符集修改： ubuntu 15.04开放mysql远程3306端口： Linux下查看MySQL的安装路径： ubuntu15.04手动安装MySQL5.6.27数据库： ， MySQL 5.6启动后， mysql select * from mysql.plugin; +-----------+-----------------+ | name | dl | +-----------+-----------------+ | innodb | ha_innodb.so | | federated | ha_federated.so | | blackhole | ha_blackhole.so | | archive | ha_archive.so | +-----------+-----------------+ 4 rows in set (0.00 sec) 解决它很简单，是MySQL 5.6没有以下四个插件所致，MySQL无错运行，执行命令： mysql delete from mysql.plugin; Query OK，重启MySQL服务，。