MySQL 8.0 : Default authentication method fails

[Jens Axel Søgaard]

I have a freshly installed MySQL 8.0 and have created a database using the terminal.

Now I am trying to connect to the database from racket.
I get the error:

../../../../../Applications/Racket v7.0/collects/db/private/generic/interfaces.rkt:209:0: mysql-connect: back end requested unsupported authentication plugin
  plugin: "caching_sha2_password"

The MySQL documentation says:

In MySQL 8.0, caching_sha2_password is the default authentication plugin rather than mysql_native_password.

The reason is that mysql-connect doesn't support other methods than mysql_native_password.

In short: This is a feature request for support for the new default method.

[Jens Axel Søgaard]

In case others run into the same problem, here is how to create a database with legacy settings:

https://tableplus.io/blog/2018/07/failed-to-load-caching-sha2-password-authentication-plugin-solved.html

[Jens Axel Søgaard]

That was quick - Thanks!

[imxingquan]

racket connect mysql8.0 show error.

#lang racket
(require db)
(mysql-connect #:server "127.0.0.1"
               #:port 3306
               #:database "test_db"
               #:user "root"  	
               #:password "root"   
               #:ssl 'no)

I installed mysql8.0 and run up code show error :
mysql-connect: communication failure when: during authentication (caching_sha2_password)
I runed sql in mysql:
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'root'; FLUSH PRIVILEGES;

[Ryan Culpepper]

@imxingquan Thanks for the report! I've pushed a fix. It should be in the release candidate for 7.6 tomorrow.