我昨天正在下载XAMPP v 7.0.13-0，我遇到了MySQL MariaDB无法启动的问题，我不知道为什么它不会，我试图运行来自`MacOS Terminal.app
sudo /Applications/XAMPP/xamppfiles/bin/mysql.server start
导致错误：
Warning: World-writable config file '/Applications/XAMPP/xamppfiles/etc/my.cnf' is ignored
Starting MySQL
.
Warning: World-writable config file '/Applications/XAMPP/xamppfiles/etc/my.cnf' is ignored
Warning: World-writable config file '/Applications/XAMPP/xamppfiles/etc/my.cnf' is ignored
2016-12-21 22:33:01 2727 mysqld_safe Logging to '/Applications/XAMPP/xamppfiles/var/mysql/localhost.local.err'.
..
ERROR!
XAMPP的日志文件如下所示：
2016-12-21 22:24:59 2189 mysqld_safe Starting mysqld daemon with databases from /Applications/XAMPP/xamppfiles/var/mysql
Warning: World-writable config file '/Applications/XAMPP/xamppfiles/etc/my.cnf' is ignored
2016-12-21 22:24:59 140735798543296 [Note] /Applications/XAMPP/xamppfiles/sbin/mysqld (mysqld 10.1.19-MariaDB) starting as process 2258 ...
2016-12-21 22:24:59 140735798543296 [Warning] Setting lower_case_table_names=2 because file system for /Applications/XAMPP/xamppfiles/var/mysql/ is case insensitive
2016-12-21 22:24:59 140735798543296 [Note] InnoDB: Using mutexes to ref count buffer pool pages
2016-12-21 22:24:59 140735798543296 [Note] InnoDB: The InnoDB memory heap is disabled
2016-12-21 22:24:59 140735798543296 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2016-12-21 22:24:59 140735798543296 [Note] InnoDB: GCC builtin __sync_synchronize() is used for memory barrier
2016-12-21 22:24:59 140735798543296 [Note] InnoDB: Compressed tables use zlib 1.2.8
2016-12-21 22:24:59 140735798543296 [Note] InnoDB: Using SSE crc32 instructions
2016-12-21 22:24:59 140735798543296 [ERROR] mysqld: Can't create/write to file '/var/folders/11/hxbjwwm94txfzqw5mt_yj_x40000gn/T/ibS5h9p3' (Errcode: 13 "Permission denied")
2016-12-21 22:24:59 7fff9b4783c0 InnoDB: Error: unable to create temporary file; errno: 13
2016-12-21 22:24:59 140735798543296 [ERROR] Plugin 'InnoDB' init function returned error.
2016-12-21 22:24:59 140735798543296 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2016-12-21 22:24:59 140735798543296 [Note] Plugin 'FEEDBACK' is disabled.
2016-12-21 22:24:59 140735798543296 [ERROR] Unknown/unsupported storage engine: InnoDB
2016-12-21 22:24:59 140735798543296 [ERROR] Aborting
2016-12-21 22:24:59 2189 mysqld_safe mysqld from pid file /Applications/XAMPP/xamppfiles/var/mysql/localhost.local.pid ended
我不知道如何解决此错误。我已多次重启操作系统，并确保没有实例已经运行。
请帮忙！
修改
我刚刚重新安装了XAMPP，现在日志有点不同了：
2016-12-21 22:54:49 5687 mysqld_safe Starting mysqld daemon with databases from /Applications/XAMPP/xamppfiles/var/mysql
2016-12-21 22:54:50 140735798543296 [Note] Using unique option prefix 'key_buffer' is error-prone and can break in the future. Please use the full name 'key_buffer_size' instead.
2016-12-21 22:54:50 140735798543296 [Note] /Applications/XAMPP/xamppfiles/sbin/mysqld (mysqld 10.1.19-MariaDB) starting as process 5833 ...
2016-12-21 22:54:50 140735798543296 [Warning] Setting lower_case_table_names=2 because file system for /Applications/XAMPP/xamppfiles/var/mysql/ is case insensitive
2016-12-21 22:54:50 140735798543296 [Note] InnoDB: innodb_empty_free_list_algorithm has been changed to legacy because of small buffer pool size. In order to use backoff, increase buffer pool at least up to 20MB.
2016-12-21 22:54:50 140735798543296 [Note] InnoDB: Using mutexes to ref count buffer pool pages
2016-12-21 22:54:50 140735798543296 [Note] InnoDB: The InnoDB memory heap is disabled
2016-12-21 22:54:50 140735798543296 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2016-12-21 22:54:50 140735798543296 [Note] InnoDB: GCC builtin __sync_synchronize() is used for memory barrier
2016-12-21 22:54:50 140735798543296 [Note] InnoDB: Compressed tables use zlib 1.2.8
2016-12-21 22:54:50 140735798543296 [Note] InnoDB: Using SSE crc32 instructions
2016-12-21 22:54:50 140735798543296 [Note] InnoDB: Initializing buffer pool, size = 16.0M
2016-12-21 22:54:50 140735798543296 [Note] InnoDB: Completed initialization of buffer pool
2016-12-21 22:54:50 140735798543296 [Note] InnoDB: Highest supported file format is Barracuda.
2016-12-21 22:54:50 140735798543296 [Note] InnoDB: 128 rollback segment(s) are active.
2016-12-21 22:54:50 140735798543296 [Note] InnoDB: Creating zip_dict and zip_dict_cols system tables.
2016-12-21 22:54:50 140735798543296 [Note] InnoDB: zip_dict and zip_dict_cols system tables created.
2016-12-21 22:54:50 140735798543296 [Note] InnoDB: Waiting for purge to start
2016-12-21 22:54:50 140735798543296 [Note] InnoDB: Percona XtraDB (http://www.percona.com) 5.6.32-79.0 started; log sequence number 1762733
2016-12-21 22:54:50 123145331998720 [Note] InnoDB: Dumping buffer pool(s) not yet started
2016-12-21 22:54:50 140735798543296 [Note] Plugin 'FEEDBACK' is disabled.
2016-12-21 22:54:50 140735798543296 [Note] Server socket created on IP: '::'.
2016-12-21 22:54:50 140735798543296 [ERROR] Can't start server: Bind on TCP/IP port. Got error: 48: Address already in use
2016-12-21 22:54:50 140735798543296 [ERROR] Do you already have another mysqld server running on port: 3306 ?
2016-12-21 22:54:50 140735798543296 [ERROR] Aborting
2016-12-21 22:54:52 5687 mysqld_safe mysqld from pid file /Applications/XAMPP/xamppfiles/var/mysql/localhost.local.pid ended
ANSWER ：有一个AppleDB实例是Apple Developer Version（适用于SierraOS）的默认设置，我联系了Apple支持部门，我被告知要搜索/private/dev/.adb/app.plist并删除它
删除plist文件后，他们告诉我导航到/private/.databases/并删除.StartDBOnStartup。重新启动我的Mac后，它工作，端口不再使用。
我不太确定它是什么实例，但无论如何都没有显示在终端中。
答案 0 :(得分：1)
终端上的命令很少。当你开始你的mamp时，你应该 看错误信息。
查找unix命令。我认为这是netstat组合或管道，你可以称之为。
我相信你可以在mamp控制面板中分配端口。有很多方法可以在osx上安装mysql php和apache。
你可以使用mamp。 您可以使用macport手动安装它们。
如果你刚刚浏览了你的macbook，你应该能够下载xcode，我相信你应该能够安装xcode，这将允许你用mac ports命令行安装它们。
在线查看文档。按照说明操作，你应该没问题。
你是否安装了其他应用程序，如skype，可能与mysql端口冲突。你可以手动分配mysql端口。
尝试查看使用端口3306的内容。您需要找到该应用并在有人获取您的电脑之前将其卸载并重新启动它。
我的服务器发生在amazon aws上。我花了几周修理它。这甚至发生在我朋友的电脑上。我相信他有他的大学朋友试图教他如何在没有任何经验的情况下安装灯具，我们花了几周修理它。
我认为你把你的innodb表弄得乱七八糟。您可能需要在备份后删除/ var / lib / mysql表并尝试重新启动mysql。
如果我是你，我会重新安装osx并从头开始。我之前做过这个，需要很长时间。
您应该压缩源表和备份表，然后重新安装个人计算机上的所有内容。