APPLICATION OF COMPUTATIONAL MODELS TO DETECTION OF OUTAGE REASONS IN CLOUD INFRASTRUCTURES

Abstract

Goal. Monitoring of technical status is one of the most important tasks in modern cloud infrastructures. One of the most popular solution is providing list of currently known outages to operator; that might be inconvenient in case of necessity to detect reason of multiple dependant outages. Thus it is necessary to inform operators how outages are related to each other. Materials and methods. The paper proposes monitoring of cloud infrastructure based upon comparison between their functioning metrics and golden model. It also proposes usage of Tyugu’s computational modes for defining this golden model and also for defining visual representation of cloud infrastructure. Results. Developed methods for describing technical condition of cloud application using computational models, detection of complex outage reasons, visualization of parts of the application relevant to outage. Conclusion. It is demonstrated that the approach has some advantages, namely, allows automatically detect reasons of outages and visualize parts of applications, relevant to these outages. At the same time there are some difficulties adopting this approach in systems with complex high availability support strategies.