mysql在mysqld_safe安全模式下啟動報錯

費話不說多我們來看看在我linux中的mysql在mysqld_safe安全模式下啟動報錯失敗的原因與解決辦法，有需要了解的朋友可嘗試此方法來解決你的問題。

使用二進制編譯文件的mysqld_safe啟動報錯，如下：

[mysql@ECP-UC-DB1 ~]$ mysqld_safe
110707 21:31:19 mysqld_safe Logging to ‘/opt/mysql/mysqldata/ECP-UC-DB1.err’.
110707 21:31:19 mysqld_safe The file /usr/local/mysql/bin/mysqld
does not exist or is not executable. Please cd to the mysql installation
directory and restart this script from there as follows:
./bin/mysqld_safe&
See http://dev.mysql.com/doc/mysql/en/mysqld-safe.html for more information

解決方法：

su – root
mkdir /usr/local/mysql/bin
ln -s /opt/mysql/product/5.5/bin/mysqld /usr/local/mysql/bin/mysqld

再次執行mysqld_safe

[mysql@ECP-UC-DB1 ~]$ mysqld_safe
110707 21:32:37 mysqld_safe Logging to ‘/opt/mysql/mysqldata/ECP-UC-DB1.err’.
110707 21:32:37 mysqld_safe Starting mysqld daemon with databases from /opt/mysql/mysqldata

啟動結果：

mysql 26885 23452 0 21:32 pts/0 00:00:00 /bin/sh /opt/mysql/product/5.5/bin/mysqld_safe
mysql 27653 26885 0 21:32 pts/0 00:00:00 /usr/local/mysql/bin/mysqld –basedir=/opt/mysql/product/5.5 –datadir=/opt/mysql/mysqldata –plugin-dir=/usr/local/mysql/lib/plugin –log-error=/opt/mysql/mysqldata/ECP-UC-DB1.err –open-files-limit=8192 –pid-file=/var/run/mysqld/mysqld.pid –socket=/var/run/mysqld/mysqld.sock –port=3306

問題存在原因：

1、mysqld_safe只認識/usr/local/mysql/bin/mysqld（也許是配置問題）
2、my.cnf只能放置在/etc/下面，不然使用–defaults-file也不能讀取my.cnf文件（有疑惑）

總結，不一樣的問題可能會有一點區別，大家需要根據自己的經驗來分析原因哦。