Using mydumper to backup the mysql system table , restore on a replica, then this can deadlock on metadata lock with our workload

Our MariaDB orchestrator and other in the cloud i get inspiration from.

We do regular create table if no exist slow_log_<datetime> insert from slow_log to slow_log_<datetime> ;truncate table slow_log when log_output=TABLE to avoid that table growing for ever

We can code a workaround in our case but this may be nice to fixe as metadata deadlock should not happen by design ?

Using mysqldump --system=ALL does not deadlock so this is probably caused by the DROP TABLE from the myloader