MySQL錯誤修復:Table crashed repair
阿新 • • 發佈:2020-11-24
問題一 Table xx is marked as crashed and last (automatic?) repair failed
有開發找到我,說資料庫壞了,連不上資料庫,看了下 MySQL 的錯誤日誌,報錯如下:
Error: Table './db_name/table_name' is marked as crashed and last (automatic?) repair failed
修復
1、先停止 MySQL:service mysqld stop
2、進入到 MySQL 資料庫的檔案存放目錄,比如 cd /data/mysql_data/xx_db
然後執行如下命令:
myisamchk --safe-recover -f -r *.MYI
執行完成後,為了保險起見,我們要將檔案的許可權改回 MySQL 的執行賬號(自行檢視),比如 mysql:
chown -R mysql:mysql .
3、啟動 MySQL:service mysqld start
4、最後,執行再次自動修復優化命令即可解決:
mysqlcheck --auto-repair --optimize --all-databases -p密碼
問題二 /usr/local/mysql/bin/mysqld does not exist or is not executable.
]# /data/wapage/hhzk/mserver/mysql5713/bin/mysqld_safe --defaults-file=/etc/my.cnf & [1] 24527 ]# 2020-11-23T10:36:45.803151Z mysqld_safe Logging to '/data/wapage/hhzk/mserver/mysql5713/data/qd01-tech2-rec-build001.ps.easou.com.err'. 2020-11-23T10:36:45.809116Z 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 [1]+ Exit 1 /data/wapage/hhzk/mserver/mysql5713/bin/mysqld_safe --defaults-file=/etc/my.cnf
說明:mysqld_safe啟動指令碼預設的從/usr/local/mysql目錄中讀取另外一個啟動指令碼mysqld,因為我的安裝目錄為/data/wapage/hhzk/mserver/mysql5713。所以找不到相關檔案。可以從兩個方面解決。
方法一:在/usr/local/mysql建立連結檔案
mkdir -p /usr/local/mysql/bin
ln -s /data/wapage/hhzk/mserver/mysql5713/bin/mysqld /usr/local/mysql/bin/mysqld
方法二:將mysqld_safe中的所有/usr/local/mysql目錄改為自己實際的安裝目錄
sed -i 's#/usr/local/mysql#/data/wapage/hhzk/mserver/mysql5713#g' /data/wapage/hhzk/mserver/mysql5713/bin/mysqld_safe