mysqldump在perl脚本中抛出错误，但是在脚本外运行良好

Question

I have a script where i take backups through perl script , which is throwing error as mentioned below

mysqldump: Got error: 1045: Access denied for user 'root'@'localhost' (using password: YES) when trying to connect

I have the root user with with localhost mentioned as % , as per documentation all the host are allowed .

And interesting point is the mysqldump command is running fine outside script ,ie in shell prompt

Any ideas ????

Answer 1

Run this command to check if root has permissions to connect from localhost

SELECT user,host 
FROM mysql.user
WHERE user = 'root'

If you do not have an entry with localhost in the host column, then root is NOT allowed to connect from localhost . You should allow root to connect from locolhost by issuing a GRANT .