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MySQL報(bào)錯(cuò)：Starting MySQL ERROR! Couldn‘t find MySQL server (/usr/local/mysql/bin/mysqld_safe)

更新時(shí)間：2024年03月15日 08:56:39 作者：DATA TOO

本文主要介紹了MySQL報(bào)錯(cuò)：Starting MySQL ERROR! Couldn‘t find MySQL server (/usr/local/mysql/bin/mysqld_safe)

1. 要對(duì)MySQL數(shù)據(jù)庫清除原來已有的數(shù)據(jù)，重新初始化數(shù)據(jù)庫。

Linux系統(tǒng)：CentOS7.6，數(shù)據(jù)庫：MySQL5.6.40。先將mysql進(jìn)程強(qiáng)行停止掉。

pkill mysqld

2. 對(duì)數(shù)據(jù)庫進(jìn)行清理：

[root@mv172 ~]# rm -rf /application/mysql/data/*
[root@mv172 ~]# \rm -rf /data/mysql/*

3. 配置文件安裝在/application/mysql-5.6.40/my.cnf

[mysqld]
basedir=/application/mysql
datadir=/application/mysql/data
socket=/tmp/mysql.sock
log_error=/var/log/mysql.log
log_bin=/data/mysql/mysql-bin
binlog_format=row
skip-name-resolve
server_id=172
gtid-mode=on
enforce-gtid-consistency=true
log-slave-updates=1
[client]
socket=/tmp/mysql.sock

4. 執(zhí)行數(shù)據(jù)庫初始化命令：這次初始化沒有把配置文件添加進(jìn)去，導(dǎo)致問題的開始。

[root@mv172 ~]# /application/mysql/scripts/mysql_install_db --user=mysql --basedir=/application/mysql --datadir=/application/mysql/data/

......出現(xiàn)一堆的執(zhí)行代碼，此處就省略：

5. 將mysql啟動(dòng)復(fù)制到系統(tǒng)為默認(rèn)啟動(dòng)路徑

[root@mv172 ~]# \cp /application/mysql/support-files/mysql.server /etc/init.d/mysqld

6. # 啟動(dòng)mysql，這時(shí)候有報(bào)錯(cuò)：

[root@mv172 ~]# /etc/init.d/mysqld start
/etc/init.d/mysqld: line 244: my_print_defaults: command not found
/etc/init.d/mysqld: line 264: cd: /usr/local/mysql: No such file or directory
Starting MySQL ERROR! Couldn't find MySQL server (/usr/local/mysql/bin/mysqld_safe)

7. 經(jīng)過不斷嘗試，終于找到問題根源。因?yàn)槠鸪?初始化時(shí)，沒有將mysql路徑和數(shù)據(jù)庫保存路徑綁定好，而導(dǎo)致一連串問題。

查配置文件，沒有配置的保存mysql-bin二進(jìn)制保存路徑。

[root@mv172 /]# mkdir -p /data/mysql
[root@mv172 /]# chown -R mysql.mysql /data/*

8. 重新初始化數(shù)據(jù)，自此增加“--defaults-file=/application/mysql/my.cnf”

[root@mv172 data]# /application/mysql/scripts/mysql_install_db --defaults-file=/application/mysql/my.cnf --user=mysql --basedir=/application/mysql --datadir=/application/mysql/data

9 . # 于是查看mysqld文件
發(fā)現(xiàn)
“basedir=
datadir=”
這兩個(gè)路徑，突然想到mysql啟動(dòng)順手時(shí)以這個(gè)mysqld優(yōu)先，于是將配置文件這兩個(gè)路徑添加到這里來，

#   [mysqld]
#   basedir=<path-to-mysql-installation-directory>
# - Add the above to any other configuration file (for example ~/.my.ini)
#   and copy my_print_defaults to /usr/bin
# - Add the path to the mysql-installation-directory to the basedir variable
#   below.
#
# If you want to affect other MySQL variables, you should make your changes
# in the /etc/my.cnf, ~/.my.cnf or other MySQL configuration files.

# If you change base dir, you must also change datadir. These may get
# overwritten by settings in the MySQL configuration files.


basedir=
datadir=

......

10 . 重新再執(zhí)行初始化數(shù)據(jù)庫，執(zhí)行

啟動(dòng)數(shù)據(jù)庫命令

[root@mv172 data]# /etc/init.d/mysqld start
Starting MySQL.. SUCCESS!

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