This morning, a user asked in the MySQL Community Slack if somebody had an idea why the error log was filled up continuously with a warning messages like this one:
2020-07-24T06:54:00.877128Z 46 [Warning] [MY-013360] [Server] Plugin sha256_password reported: ''sha256_password' is deprecated and will be removed in a future release. Please use caching_sha2_password instead'
The context was that the user upgraded from MySQL 5.7 to MySQL
8.0 and changed the authentication plugin of all users to
As the warning message was written to the error log almost twice per second, I suspected a monitoring tool. The user said, that no application, no monitoring was using this server yet.
Of course we verified that all users had the plugin changed.
This is important when helping people (friends, colleagues, …[Read more]