Research on sub-health in cloud environment

Diagnosis and analysis of sub-health status in cloud environment is a key problem of cloud environment health assessment and analysis. A series of measurable and quantifiable indicators and models are urgently required for the theoretical analysis and system evaluation of sub-health status in cloud environment. The definition and connotation of sub-health status in cloud environment were proposed; the knowledge structure that was summarized, in terms of the standard and evaluation system of cloud health, and the formal model, diagnosis and analysis, and the treatment of sub-health status in cloud environment. The existing work on cloud environment sub-health was also summarized, in terms of cloud monitoring, cloud architecture, cloud platform performance evaluation and analysis, energy control, and cloud security.