When you configure the MySQL probe v1.54 to connect on MySQL 8.x server with strong password encryption (caching_sha2_password_authentication) enabled, the following error is displayed:
"Client Does not support authentication protocol requested by server; consider upgrading MySQL Client"
Currently, the MySQL Probe uses MySQL connector version 6.0.2 which doesn't have the support for caching_sha2_password_authentication.
MYSQL probe 1.54
To support the caching_sha2_password_authentication the probe must have the embedded MySQL connector upgraded to 8.0.7 version or higher.
An enhancement request was accepted for this, and the tentative ETA for this is the later half of 2021.
By now, the only workaround possible is described in the below articles for MySQL 8.0 - Client does not support authentication protocol requested by server; consider upgrading MySQL client: