HASLab researcher, Ana Nunes Alonso, concludes her PhD

Ana Nunes Alonso defended in February her doctoral thesis entitled "Database Replication for Enterprise Applications", having received a unanimous evaluation of "very good" from the jury.

Started in the 2008/2009 school year, the thesis focuses on the problem of scaling applications that rely on relational properties guaranteed by database management systems so that these can handle a growing number of users or even a more demanding workload. The starting point to reach this goal was the evaluation of the underlying assumptions of the state of the art, regarding database replication.

As a result, an adaptive transaction scheduler was also proposed, which is capable of executing each transaction at the most appropriate time. This way, it is possible to overcome the current challenges that can lead to larger transactions, or that take more time to execute, to never be applied.