Performance and Concepts of Identity-Centric Decentral Open-Source Databases

Abstract

In order to deal with instable Internet connections various decentral databases (DDBs) for mobile (web) applications were developed. These databases provide applications with locally stored data and synchronize changes automatically with central servers or with directly reachable devices. Moreover, identity centric networking allows us to sign data and restrict access at the edge node level without connection to central instances. This allows us to build data networks which are able to use fast Internet connections or resilient node-to-node paths seamlessly.In this paper, we derive general challenges and specific solutions extracted out of three decentral open-source DDBs. In order to identify their practical strengths and to measure their performance we synchronize small and big data, disconnect instances from each other and use instances as data relays. During a total of five scenarios, we examine the correctness of data, storage consumption and network traffic.