Quality of IT Services (QoS), providing across all globally distributed regions via Internet, use modern cloud computing IT technologies having big data flow and, therefore, is actual. This paper briefly describes the methods of analysis and visualization of monitoring big data based on Key Performance Indicators (KPIs) of a cloud computing IT system using real world example of globally distributed infrastructure of the International IT Company. Implementation ofproposed methods ofvisual analytics in worldwide leading IT companies - RingCentral (USA) and Zabbix (Latvia), - allowed improving of QoS and availability of IT services up to a worldwide level of 99.999% in 24/7 mode. Implementation of new solutions in IT companies is confirmed by corresponding documents and by publications in PhD and DSc thesis of the coauthors.

information system, globally distributed computing infrastructure, big data, cloud computing, monitoring events, system analysis, graphics visualization

Kucherova Kristina Nikolaevna,  ,  Peter the Great St. Petersburg Polytechnic University

Mescheryakov Sergey Vladimirovich,  ,  Peter the Great St. Petersburg Polytechnic University

Shchemelinin Dmitry Aleksandrovich,  ,  Peter the Great St. Petersburg Polytechnic University