Purging of Unneeded Data from OpenStack Service Databases

Issue

• Red Hat Enterprise Linux OpenStack Platform uses a MariaDB database in the OpenStack control plane for data persistence
• The database acts as a system backend, storing configuration and historical data
• OpenStack services the utilize a database include Compute, Identity Service, and Block Storage
• This article discusses recommended practices for maintaining the size of the database with regards to automatic purging of unneeded data