An Error Handling Method For Primary-Backup Replication Protocol

Replication system belongs to highly reliable software; therefore, the reliability of itself is particularly important. This paper discusses the error brought about by the breakdown of primary-backup replication system. Then, an error handling method for primary-backup replication protocol (LVR) is presented in this paper aiming at handling this error and improving the reliability. LVR can maintain the data consistency by reconstructing write requests and updating them to backup. Analysis and experiment have revealed that LVR performs highly efficiently and it can be widely used in primary-backup replication protocols.