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The Oracle mysql client has an odd behavior if your server uses latin1 as default character-set-server. Command mysql --version mysql Ver 8.0.31-0ubuntu0.20.04.2 for Linux on x86...

mysql --default-character-set utf8mb4 -e "SHOW VARIABLES LIKE '%char%';" Expectation utf8mb4 will be used as character set in this session. Reality The mysql client falls back to latin1...

...Right after that we had a look into the logrotation-configuration and saw that the mysqladmin-command is used to check if the server is running in order to rotate...

...log flush-slow-log fi endscript } From the documentation of the parameter ping of the mysqladmin-command we can see that the command tries to access the database and if...