Challenge BigData-3: Online diagnosis of data-intensive software. How can we monitor
and thus ensure the quality of Big Data systems during their operation? The analysis of
monitoring logs may itself be considered a Big Data problem as logs for complex systems can easily reach a large size in small periods of time. How can we use Big Data techniques
to analyse Big Data systems in operation? Can we identify undesired patterns and
deviations by analysing the massive amount of “meta-data” being collected?