Mac上通过 brew 安装MySQL及其问题

一、环境和安装

macOS 版本：10.13.1

Mysql 版本:

mysql  Ver 14.14 Distrib 5.7.20, for osx10.13 (x86_64) using  EditLine wrapper

使用 brew 安装 MySQL：

brew install mysql
brew tap homebrew/services
brew services start mysql

其他命令：

# 获取 service 列表
brew services list
# 重启 mysql 服务
brew services restart mysql
# 停止 mysql 服务
brew services stop mysql

安装参考：Install MySQL on macOS Sierra

brew services 官网：homebrew-services

二、碰到的问题

1、无法连接

描述：

使用 Navicat 或者是命令行都无法连接，均提示用户名/密码错误。

ERROR 1045 (28000) Access denied for user 'root'@'localhost' (using password: NO)

解决方法：

使用不要密码登录：

sudo mysqld_safe --skip-grant-tables &

再使用下面脚本重新设置下数据库的 root 密码：

UPDATE mysql.user SET authentication_string = PASSWORD('MyNewPass')
WHERE User = 'root' AND Host = 'localhost';
FLUSH PRIVILEGES;

2、日志里面出现mysql 无法重启启动的错误日志

日志详情：

Dec  6 01:36:35 --- last message repeated 1 time ---
Dec  6 01:36:35 s01 com.apple.xpc.launchd[1] (homebrew.mxcl.mysql[18960]): Service exited with abnormal code: 1
Dec  6 01:36:35 s01 com.apple.xpc.launchd[1] (homebrew.mxcl.mysql): Service only ran for 0 seconds. Pushing respawn out by 10 seconds.
Dec  6 01:36:45 s01 com.apple.xpc.launchd[1] (com.apple.xpc.launchd.domain.system): Session adoption is only allowed in user domains.
Dec  6 01:36:45 --- last message repeated 1 time ---
Dec  6 01:36:45 s01 com.apple.xpc.launchd[1] (homebrew.mxcl.mysql[19029]): Service exited with abnormal code: 1
Dec  6 01:36:45 s01 com.apple.xpc.launchd[1] (homebrew.mxcl.mysql): Service only ran for 0 seconds. Pushing respawn out by 10 seconds.
Dec  6 01:36:55 s01 com.apple.xpc.launchd[1] (com.apple.xpc.launchd.domain.system): Session adoption is only allowed in user domains.
Dec  6 01:36:55 --- last message repeated 1 time ---
Dec  6 01:36:55 s01 com.apple.xpc.launchd[1] (homebrew.mxcl.mysql[19098]): Service exited with abnormal code: 1
Dec  6 01:36:55 s01 com.apple.xpc.launchd[1] (homebrew.mxcl.mysql): Service only ran for 0 seconds. Pushing respawn out by 10 seconds.
Dec  6 01:37:06 s01 com.apple.xpc.launchd[1] (com.apple.xpc.launchd.domain.system): Session adoption is only allowed in user domains.

解决：

我查了下系统跑的有 mysql 进程(

ps -e | grep mysql

)，也就是说出现了重复创建 mysql 服务。

查看 macos 的自启动服务列表：

ll ~/Library/LaunchAgents
ll /Library/LaunchDaemons
ll /Library/LaunchAgents

发现有重复的 mysql 服务，删除掉重复的就是。

因为使用的是 brew services 方式运行，所以可以通过

brew services list

来获取正在运行的，把另外一个删除了就行。

三、最后说2句

推荐使用 docker 方式，之前我使用的 mssql docker 版本就好安装的多。

用了这么久，mssql docker 偶尔会出现莫名其妙的闪退，而且也没有发现日志，疑惑！！！！。