Can't connect to MySQL server on 'localhost3306' (10061) Simple and clear solution

Error:

1. ERROR 2003 (HY000): Can’t connect to MySQL server on ‘localhost:3306’ (10061)

2. The service already exists! The current server installed: E:Environmentmysql-8.0.26-winx64inmysqld MySQL

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Workaround:

(Run cmd as administrator)

1. mysqld --remove mysql, then manually delete the data folder and my.ini file
2. mysqld --install (install mysql)
3. mysqld --initialize --user=root --console (initialize mysql)
4. net start mysql (start mysql)
5. mysql -u root -p (enter mysql, enter the initial password)
6. set password='password'; (set password)

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Summary

Error message:

1. InnoDB:Attemptedtoopenapreviouslyopenedtablespace
2. Got error -1 from storage engine

In my previous article, I wrote about the solution to system error 1067 in MySQL, when the error message was InnoDB:Attemptedtoopenapreviouslyopenedtablespace

But later found that even if the problem of this system error is solved, it will not work, because the solution to this problem is to add innodb_force_recovery = 1 to my.ini, but when the parameter value is set greater than 0, the table can be selected, create, drop operations, but operations such as insert, update or delete are not allowed, and an error will be prompted: Got error -1 from storage engine.

In simple terms, if the parameter of innodb_force_recovery is set to 0, mysql cannot be started, and if the parameter is set to 1, operations such as insert, update or delete cannot be performed. Personally, this is an infinite loop.

I personally suggest that if you encounter this problem, you should uninstall the current MySQL immediately, download a new version of MySQL and reinstall it, which can save a lot of trouble!

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Reference link:

1. mysql prompts Can't connect to MySQL server on localhost (10061) solution.li>
2. Can’t connect to MySQL server on localhost (10061) solution.
3. Got error -1 from storage engine.
4. MySQL installation

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