昨天用各种方式试验MYSQL的数据库备份与恢复操作，恢复过程中，MYSQL就无法启动了。
提示如下：
22:59:43 [mysql] Attempting to start MySQL app...
22:59:43 [mysql] Status change detected: running
22:59:44 [mysql] Status change detected: stopped
22:59:44 [mysql] Error: MySQL shutdown unexpectedly.
22:59:44 [mysql] This may be due to a blocked port, missing dependencies,
22:59:44 [mysql] improper privileges, a crash, or a shutdown by another method.
22:59:44 [mysql] Press the Logs button to view error logs and check
22:59:44 [mysql] the Windows Event Viewer for more clues
22:59:44 [mysql] If you need more help, copy and post this
22:59:44 [mysql] entire log window on the forums
This may be due to a blocked port, missing dependencies, 首先我看了端口，3306端口并没有被占用。
网上看到一个运行批处理文件的解决办法，但是需要重启：
我就X了，刚刚写了一大堆，结果提交后显示找不到服务器，，，，然后草稿箱里也没有，真是各种背
总之就是各种方法都试了，都无法解决，最后只能重新卸载重装解决的。
刚才将E:\xampp_new\mysql\data 数据库的文件替换了一下，替换后，mysql就无法启动了，终于找到了mysql无法启动的原因，就是因为替换data数据库文件造成的。
多次删除ibdata1、ib_logfile1、ib_logfile0 后，mysql才可以启动，第一次删除后，确实依然无法启动。
通过操作发现，使用直接复制、粘贴数据库文件的方法，对数据库进行恢复，是不可行的，会造成数据库无法启动，就算后面删除日志文件，数据库可以启动了，也是无法浏览数据库内的表文件的。
错误日志：
2014-11-25 23:57:55 4336 [Note] Plugin 'FEDERATED' is disabled.
2014-11-25 23:57:55 2720 InnoDB: Warning: Using innodb_additional_mem_pool_size is DEPRECATED. This option may be removed in future releases, together with the option innodb_use_sys_malloc and with the InnoDB's internal memory allocator.
2014-11-25 23:57:55 4336 [Note] InnoDB: Using atomics to ref count buffer pool pages
2014-11-25 23:57:55 4336 [Note] InnoDB: The InnoDB memory heap is disabled
2014-11-25 23:57:55 4336 [Note] InnoDB: Mutexes and rw_locks use Windows interlocked functions
2014-11-25 23:57:55 4336 [Note] InnoDB: Compressed tables use zlib 1.2.3
2014-11-25 23:57:55 4336 [Note] InnoDB: Not using CPU crc32 instructions
2014-11-25 23:57:55 4336 [Note] InnoDB: Initializing buffer pool, size = 16.0M
2014-11-25 23:57:55 4336 [Note] InnoDB: Completed initialization of buffer pool
2014-11-25 23:57:55 4336 [Note] InnoDB: Highest supported file format is Barracuda.
2014-11-25 23:57:55 4336 [Warning] InnoDB: Resizing redo log from 2*3072 to 2*320 pages, LSN=1625987
2014-11-25 23:57:55 4336 [Warning] InnoDB: Starting to delete and rewrite log files.
2014-11-25 23:57:55 4336 [Note] InnoDB: Setting log file E:\xampp_new\mysql\data\ib_logfile101 size to 5 MB
2014-11-25 23:57:55 4336 [Note] InnoDB: Setting log file E:\xampp_new\mysql\data\ib_logfile1 size to 5 MB
2014-11-25 23:57:56 4336 [Note] InnoDB: Renaming log file E:\xampp_new\mysql\data\ib_logfile101 to E:\xampp_new\mysql\data\ib_logfile0
2014-11-25 23:57:56 4336 [Warning] InnoDB: New log files created, LSN=1625987
2014-11-25 23:57:56 4336 [Note] InnoDB: 128 rollback segment(s) are active.
2014-11-25 23:57:56 4336 [Note] InnoDB: Waiting for purge to start
2014-11-25 23:57:56 4336 [Note] InnoDB: 5.6.16 started; log sequence number 1625987
2014-11-25 23:57:56 4336 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: d2275b21-74bb-11e4-8165-74d435fb4eb2.
2014-11-25 23:57:56 4336 [Note] Server hostname (bind-address): '*'; port: 3306
2014-11-25 23:57:56 4336 [Note] IPv6 is available.
2014-11-25 23:57:56 4336 [Note] - '::' resolves to '::';
2014-11-25 23:57:56 4336 [Note] Server socket created on IP: '::'.