mysqldump for AWS RDS `flush tables` error on linux only
I have a process that exports the data from an AWS RDS MariaDB using mysqldump which has been running succesfully in a docker-image on Concourse for years. Since two nights ago the process has started failing with the error: mysqldump: Couldn't execute 'FLUSH TABLES WITH READ LOCK': Access denied for user 'admin'@'%' (using password: YES) (1045) The official