150204 17:08:10 InnoDB: The InnoDB memory heap is disabled
150204 17:08:10 InnoDB: Mutexes and rw_locks use Windows interlocked functions
150204 17:08:10 InnoDB: Compressed tables use zlib 1.2.3
150204 17:08:10 InnoDB: Initializing buffer pool, size = 150204 17:09:19 [Note] Plugin 'FEDERATED' is disabled.
150204 17:09:19 InnoDB: The InnoDB memory heap is disabled
150204 17:09:19 InnoDB: Mutexes and rw_locks use Windows interlocked functions
150204 17:09:19 InnoDB: Compressed tables use zlib 1.2.3
150204 17:09:19 InnoDB: Initializing buffer pool, size = 150204 17:11:44 [Note] Plugin 'FEDERATED' is disabled.
150204 17:11:44 InnoDB: The InnoDB memory heap is disabled
150204 17:11:44 InnoDB: Mutexes and rw_locks use Windows interlocked functions
150204 17:11:44 InnoDB: Compressed tables use zlib 1.2.3
150204 17:11:44 InnoDB: Initializing buffer pool, size = 150204 17:20:45 [Note] Plugin 'FEDERATED' is disabled.
150204 17:20:45 InnoDB: The InnoDB memory heap is disabled
150204 17:20:45 InnoDB: Mutexes and rw_locks use Windows interlocked functions
150204 17:20:45 InnoDB: Compressed tables use zlib 1.2.3
150204 17:20:45 InnoDB: Initializing buffer pool, size =
今天在启动myql时候突然报了一个这个错误，感觉非常的奇怪，想起我唯一做了的改变就是把系统临时文件夹改了到了我用内存虚拟出来的硬盘分区里面，估计和这个是有关系的，
121113 10:52:30 [Note] Plugin ‘FEDERATED’ is disabled.
121113 10:52:30 InnoDB: The InnoDB memory heap is disabled
121113 10:52:30 InnoDB: Mutexes and rw_locks use Windows interlocked functions
121113 10:52:30 InnoDB: Compressed tables use zlib 1.2.3
处理办法：1：打开my.ini文件
2：添加一句 tmpdir = e:/mysqltem 你的临时文件夹 重启mysql 搞定了
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安装完MySQL后启动时失败，查看应用程序日志，提示
Plugin 'FEDERATED' is disabled
再看配置文件my.ini
里边把 datadir 都指向C盘去了
datadir="C:\Program Files\MySQL\MySQL Server 5.5\data\"
但我的MySQL是安装在D盘的，于是修改之：
datadir="D:/MySQL/MySQL Server 5.5/Data/"
然后再把C盘指向的MySQL整个文件夹删除，重启服务，OK
这个试过 还是这样的问题