The purpose of this project is, using a base real scenario, designing a viable implementation architecture for a set of services and software applications related to adquisition, transformation and analisys of massive amounts of log data, that then can be used for building a monitoring system for detecting anomalies in behaviours that may lead to detect possible unauthorized accesses to pieces of information or systems, undesired behaviours, or attempts to exploit systems vulnerabilities. Several tools related to Big data, data integration, distributed computation and stream processing are also analyzed and discussed in the context of the project.