打开终端，使用以下命令:

sudo find / -name my.cnf

与所有这些伟大的答案相反。如果你在一个没有sudo权限的环境中工作。你的Homebrew可以安装在你的主目录下~如果是这种情况，你的mysql已经通过brew安装，安装mysql你的my.cnf可以位于~/ Homebrew /etc/my.cnf或者你也可以在你的home目录中查找。/ name 'my.cnf'

为我在sierra版本

复制默认配置:

/usr/local/Cellar/mysql/5.6.27/support-files / my-default.cnf

to

/usr/local/Cellar/mysql/5.6.27/my.cnf

In my case, the file did not exist. In MySQL Workbench I went to OPTIONS FILE and found some default values. I clicked apply. It asked for permission. It then created the my.cnf file under /etc. However, it is very important to keep in mind that the first time you click "apply", you do not make any changes to the default configuration. Once the file has been created, you can make changes which will be applied when you click "apply". Otherwise you will not be shown the apply button when you make changes.

我不知道你使用的是哪个版本的MySQL，但以下是Mac OS X 5.5版本my.cnf文件的可能位置(从这里取):

/etc/my.cnf /etc/mysql/my.cnf SYSCONFDIR / my.cnf $ MYSQL_HOME / my.cnf Defaults-extra-file(使用——Defaults-extra-file =path指定的文件，如果有的话) ~ / .my.cnf

MySQL 5.7 on Mac OS X El Capitan: /usr/local/mysql/etc/my.cnf

从/usr/local/mysql/support-files/my-default.cnf拷贝default conf文件