Styx++: Reliable Data Access and Availability Using a Hybrid Paxos and Chain Replication Protocol

ABSTRACT HCI research often involves accessing and storing information in databases. However, in case of a database node failure, researchers could experience significant work delays, monetary costs, and data loss. How can researchers who have little or no knowledge of systems and infrastructures ensure that their data collection source is reliable and maximally available for accessing and storing data? To answer this question, we surveyed 11 HCI researchers. Using the findings from the survey, we developed Styx++—an easy-to-integrate open-source solution that bundles together existing tools and concepts, providing HCI researchers with a reliable distributed system for their database needs. Styx++ is a hybrid solution involving both the Paxos and Chain Replication Protocol, providing strong consistency and high availability to minimize the risks of single-point failures in a traditional database system setup. Our evaluation of Styx++ against benchmark solutions shows promising results of an increase in reliability without substantial performance degradation.