RDS for MySQL Built-in Accounts
When you create an RDS for MySQL DB instance, RDS automatically creates certain system accounts (unavailable to users) for O&M operations. The system accounts include:
- mysql.session: used by plugins to access the server.
- mysql.sys: used to define objects in the sys schema.
- rdsAdmin: a management account with the highest permission. It is used to query and modify instance information, rectify faults, migrate data, and restore data.
- rdsRepl: a replication account, used to synchronize data from the primary instance to the standby instance or read replicas.
- rdsMetric: a metric monitoring account used by watchdog to collect database status data.
- rdsbackup: a backup account used for background backup.
- dsc_readonly: used to anonymize data.
Parent topic: Database Permission