mysql.server重啟給出錯誤信息

Question

當我嘗試使用MySQL重新啟動時，出現以下奇怪錯誤：

$ sudo mysql.server stop
Password:
Shutting down MySQL
.. SUCCESS! 
$ sudo mysql.server start
Starting MySQL
 SUCCESS! 
$ sudo mysql.server restart
Shutting down MySQL
.. SUCCESS! 
Starting MySQL
. ERROR! The server quit without updating PID file (/usr/local/var/mysql/my.local.pid).

我在這里查看了答案： mysql.server啟動時PID錯誤？

但出現以下錯誤：

$ mysql_install_db
FATAL ERROR: Could not find ./bin/my_print_defaults

If you compiled from source, you need to run 'make install' to
copy the software into the correct location ready for operation.

If you are using a binary release, you must either be at the top
level of the extracted archive, or pass the --basedir option
pointing to that location.

有什么建議么？

Answer 1

您可以嘗試以下幾種方法：

• 嘗試直接重啟：

sudo /usr/local/mysql/support-files/mysql.server restart

• 刪除/etc/my.cnf（或重命名）並重新啟動：

sudo mv /etc/my.cnf /etc/my.cnf.bak

sudo mysql.server restart

• 刪除錯誤消息中提到的所有.err文件或創建缺少的.pid（此文件對我有用）

rm *.err /usr/local/mysql/data/

rm /usr/local/var/mysql/*.err

• 簡單的mysql重新安裝

希望其中之一能為您做到！

Answer 2

它很可能是權限問題。 嘗試使用以下命令解決它：

$ sudo chown _mysql /usr/local/var/mysql/*

要么

$ sudo chown -R _mysql:_mysql /usr/local/var/mysql

可能是mysql文件夾存在權限問題：

$ sudo chmod -R 777 /usr/local/var/mysql/