使用rpm安裝方式安裝完MySQL數(shù)據(jù)庫后,數(shù)據(jù)文件的默認(rèn)路徑為/var/lib/mysql,然而根目錄并不適合用于存儲數(shù)據(jù)文件。
原路徑:/var/lib/mysql
目標(biāo)路徑:/home/mysql_data/mysql
Linux系統(tǒng)版本:centos7.6
MySQL數(shù)據(jù)庫版本:5.7.25
步驟:
1、創(chuàng)建目標(biāo)路徑
mkdir -p /home/mysql_data
2、關(guān)閉MySQL
systemctl stop mysqld
3、復(fù)制數(shù)據(jù)文件
cp -arp /var/lib/mysql /home/mysql_data
4、修改配置文件/etc/my.cnf
將datadir和socket中的原路徑修改為目標(biāo)路徑
datadir=/home/mysql_data/mysql
socket=/home/mysql_data/mysql/mysql.sock
5、啟動(dòng)MySQL服務(wù)
systemctl start mysqld
NOTE:
1、報(bào)錯(cuò)如下:
2019-12-22T08:32:42.430564Z 0 [ERROR] InnoDB: Operating system error number 13 in a file operation.
2019-12-22T08:32:42.430599Z 0 [ERROR] InnoDB: The error means mysqld does not have the access rights to the directory.
2019-12-22T08:32:42.430616Z 0 [Note] InnoDB: Creating shared tablespace for temporary tables
2019-12-22T08:32:42.430898Z 0 [ERROR] InnoDB: The innodb_temporary data file 'ibtmp1' must be writable
2019-12-22T08:32:42.430923Z 0 [ERROR] InnoDB: The innodb_temporary data file 'ibtmp1' must be writable
2019-12-22T08:32:42.430936Z 0 [ERROR] InnoDB: Could not create the shared innodb_temporary.
2019-12-22T08:32:42.430952Z 0 [ERROR] InnoDB: Plugin initialization aborted with error Generic error
2019-12-22T08:32:43.038973Z 0 [ERROR] InnoDB: Operating system error number 13 in a file operation.
2019-12-22T08:32:43.039021Z 0 [ERROR] InnoDB: The error means mysqld does not have the access rights to the directory.
2019-12-22T08:32:43.039037Z 0 [ERROR] Plugin 'InnoDB' init function returned error.
2019-12-22T08:32:43.039046Z 0 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2019-12-22T08:32:43.039056Z 0 [ERROR] Failed to initialize builtin plugins.
2019-12-22T08:32:43.039063Z 0 [ERROR] Aborting
解決:
執(zhí)行命令:
setenforce 1
再重新啟動(dòng)
2、報(bào)錯(cuò)如下:
Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock'
解決:
修改配置文件my.cnf,添加或修改如下配置:
[client]
socket = /home/mysql_data/mysql/mysql.sock
總結(jié)
以上所述是小編給大家介紹的Linux下修改MySQL數(shù)據(jù)庫數(shù)據(jù)文件路徑,希望對大家有所幫助,如果大家有任何疑問請給我留言,小編會及時(shí)回復(fù)大家的。在此也非常感謝大家對腳本之家網(wǎng)站的支持!
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