MySQLNonTransientConnectionException: Client does not support authentication protocol requested by server; consider upgrading MySQL client [duplicate]

Answer 1

You have to update the database user’s password using the OLD_PASSWORD function of MySQL. SOLUTION

For example:

[rajesh-tpl-01@home ~]$ mysql -u root -p mysql
Enter password:

mysql> update user set password=OLD_PASSWORD('password') WHERE 
user='username';
Query OK, 0 rows affected (0.02 sec)
Rows matched: 0  Changed: 0  Warnings: 0

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)