Microservices Monitoring with Event Logs and Black Box Execution Tracing

Monitoring is a core practice in any software system, and entails gathering a variety of data sources that pertain the execution of a given system. Trends in microservices systems exacerbate the role of monitoring. Microservices put forth reduced size, independency, flexibility and modularity principles, which well cope with ever-changing business environments. However, as real-world applications are decomposed, they can easily reach hundreds of microservices. This inherent complexity determines an increasing difficulty in debugging, monitoring and forensics, and poses novel challenges to monitoring data sources, such as event logs.