Database replication

A replication proxy for MySQL using group communication is available as LaunchPad branch.

Storage devices

The project has implemented a prototype copy-on-write device and then evolved to a distributed deduplication system. Both were integrated in the Xen hypervisor and are available at the HoleyCoW site.

Distributed coordination

The project is using and contributing to SMaRt, a high performance Byzantine-fault-tolerant state machine replication library, and DepSpace a fault and intrusion-tolerant secure tuple space implementation.


The project is comparing the proposed approach with NoSQL databases by providing a version of the TPC-W benchmark for Cassandra

The project has contributed to the Minha middleware evaluation platform and is using it to assess the scalability of distributed coordination middleware.