The data-hiding technology can be used to transmit confidential information about state affairs and national defense; however, if there is only one server providing the data-hiding technology service, and the server breaks down for unknown reasons, service will be interrupted, and terminal users will not be able to process files using that server. The development of the current information-system application is aimed at providing high-availability services. In order to avoid situations where a single information-system server stops functioning, which would cause half of the subsequent operations to fail, this paper proposed a "Mesos architecture-based, high-availability, reversible data-hiding technology" to provide government with effective and reliable data hiding services.