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今天就跟大家聊聊有關怎么在 Linux 中修改 MySQL 數據庫數據文件路徑,可能很多人都不太了解,為了讓大家更加了解,丸趣 TV 小編給大家總結了以下內容,希望大家根據這篇文章可以有所收獲。
步驟:
1、創建目標路徑
mkdir -p /home/mysql_data
2、關閉 MySQL
systemctl stop mysqld
3、復制數據文件
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路徑
datadir=/home/mysql_data/mysql
socket=/home/mysql_data/mysql/mysql.sock
5、啟動 MySQL 服務
systemctl start mysqld
NOTE:
1、報錯如下:
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:
執行命令:
setenforce 1
再重新啟動
2、報錯如下:
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
看完上述內容,你們對怎么在 Linux 中修改 MySQL 數據庫數據文件路徑有進一步的了解嗎?如果還想了解更多知識或者相關內容,請關注丸趣 TV 行業資訊頻道,感謝大家的支持。
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