You are required to read and agree to the below before accessing a full-text version of an article in the IDE article repository.

The full-text document you are about to access is subject to national and international copyright laws. In most cases (but not necessarily all) the consequence is that personal use is allowed given that the copyright owner is duly acknowledged and respected. All other use (typically) require an explicit permission (often in writing) by the copyright owner.

For the reports in this repository we specifically note that

  • the use of articles under IEEE copyright is governed by the IEEE copyright policy (available at http://www.ieee.org/web/publications/rights/copyrightpolicy.html)
  • the use of articles under ACM copyright is governed by the ACM copyright policy (available at http://www.acm.org/pubs/copyright_policy/)
  • technical reports and other articles issued by M‰lardalen University is free for personal use. For other use, the explicit consent of the authors is required
  • in other cases, please contact the copyright owner for detailed information

By accepting I agree to acknowledge and respect the rights of the copyright owner of the document I am about to access.

If you are in doubt, feel free to contact webmaster@ide.mdh.se

Resilient Conflict-free Replicated Data Types without Atomic Broadcast

Fulltext:


Publication Type:

Conference/Workshop Paper

Venue:

17th International Conference on Software Technologies


Abstract

In a distributed system, applications can perform both reads and updates without costly synchronous network round-trips by using Conflict-free Replicated Data Types (CRDTs). Most CRDTs are based on some variant of atomic broadcast, as that enables them to support causal dependencies between updates of multiple objects. However, the overhead of this atomic broadcast is unnecessary in systems handling only independent CRDT objects. We identified a set of use cases for tracking resource usage where there is a need for a replication mechanism with less complexity and network usage as compared to using atomic broadcast. In this paper, we present the design of such a replication protocol that efficiently leverages the commutativity of CRDTs. The proposed protocol CReDiT (CRDT enhanced with intelligence) uses up to four communication steps per update, but these steps can be batched as needed. It uses network resources only when updates need to be communicated. Furthermore, it is less sensitive to server failures than current state-of-the-art solutions as other nodes can use new values already after the first communication step, instead of after two or more.

Bibtex

@inproceedings{Brahneborg6496,
author = {Daniel Brahneborg and Wasif Afzal and Saad Mubeen},
title = {Resilient Conflict-free Replicated Data Types without Atomic Broadcast},
number = {17},
month = {July},
year = {2022},
booktitle = {17th International Conference on Software Technologies},
url = {http://www.es.mdh.se/publications/6496-}
}