Mac - Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)

在终端输入mysql,结果出现

macdeMacBook-Pro:~ mac$ alias mysql=/usr/local/mysql/bin/mysql
macdeMacBook-Pro:~ mac$ mysql
ERROR  (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)

在网上搜到很多方法，不好使，然后查询了官方文档

http://dev.mysql.com/doc/refman/5.7/en/can-not-connect-to-server.html

下面写道

Here are some reasons the Can't connect to local MySQL server error might occur:

• mysqld is not running on the local host. Check your operating system's process list to ensure the mysqld process is present.

• 。。。

没想到第一条就符合，然后我尝试输入mysqld

结果:

macdeMacBook-Pro:bin mac$ mysqld
--10T07::.997151Z  [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
--10T07::.997492Z  [Note] --secure-file-priv is set to NULL. Operations related to importing and exporting data are disabled
--10T07::.997557Z  [Note] mysqld (mysqld 5.7.) starting as process  ...
--10T07::.003105Z  [Warning] Setting lower_case_table_names= because file system for /usr/local/var/mysql/ is case insensitive
--10T07::.004893Z  [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
--10T07::.004919Z  [Note] InnoDB: Uses event mutexes
--10T07::.004926Z  [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
--10T07::.004932Z  [Note] InnoDB: Compressed tables use zlib 1.2.
--10T07::.005337Z  [Note] InnoDB: Number of pools:
--10T07::.005498Z  [Note] InnoDB: Using CPU crc32 instructions
--10T07::.007117Z  [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = , chunk size = 128M
--10T07::.018796Z  [Note] InnoDB: Completed initialization of buffer pool
--10T07::.035212Z  [Note] InnoDB: Highest supported file format is Barracuda.
--10T07::.051578Z  [Note] InnoDB: Creating shared tablespace for temporary tables
--10T07::.051764Z  [Note] InnoDB: Setting file './ibtmp1' size to  MB. Physically writing the file full; Please wait ...
--10T07::.065007Z  [Note] InnoDB: File './ibtmp1' size is now  MB.
--10T07::.065856Z  [Note] InnoDB:  redo rollback segment(s) found.  redo rollback segment(s) are active.
--10T07::.065868Z  [Note] InnoDB:  non-redo rollback segment(s) are active.
--10T07::.066135Z  [Note] InnoDB: Waiting for purge to start
--10T07::.121419Z  [Note] InnoDB: 5.7. started; log sequence number
--10T07::.121762Z  [Note] InnoDB: Loading buffer pool(s) from /usr/local/var/mysql/ib_buffer_pool
--10T07::.122048Z  [Note] Plugin 'FEDERATED' is disabled.
--10T07::.133391Z  [Note] InnoDB: Buffer pool(s) load completed at  ::
--10T07::.134352Z  [Note] Found ca.pem, server-cert.pem and server-key.pem in data directory. Trying to enable SSL support using them.
--10T07::.134366Z  [Note] Skipping generation of SSL certificates as certificate files are present in data directory.
--10T07::.135842Z  [Warning] CA certificate ca.pem is self signed.
--10T07::.135903Z  [Note] Skipping generation of RSA key pair as key files are present in data directory.
--10T07::.142139Z  [Note] Server hostname (bind-address): '127.0.0.1'; port:
--10T07::.142191Z  [Note]   - '127.0.0.1' resolves to '127.0.0.1';
--10T07::.142330Z  [Note] Server socket created on IP: '127.0.0.1'.
--10T07::.195770Z  [Note] Event Scheduler: Loaded  events
--10T07::.195949Z  [Note] mysqld: ready for connections.
Version: '5.7.22'  socket: '/tmp/mysql.sock'  port:   Homebrew

等一大串错误之类的 ，最后退出了

最后，正确的方法：

macdeMacBook-Pro:~ mac$ sudo mysqld_safe
Password:
Logging to '/usr/local/var/mysql/macdeMacBook-Pro.local.err'.
--10T07::.6NZ mysqld_safe Starting mysqld daemon with databases from /usr/local/var/mysql
--10T07::.6NZ mysqld_safe mysqld from pid file /usr/local/var/mysql/macdeMacBook-Pro.local.pid ended
macdeMacBook-Pro:~ mac$ mysql
ERROR  (): Access denied for user 'mac'@'localhost' (using password: NO)

然后mysqld服务就运行啦

此时，终于能够打开mysql