EARLY SIGN DETECTION DEVICE AND EARLY SIGN DETECTION METHOD

摘要

[Problem] To propose an early sign detection device and an early sign detection method capable of accurately detecting early signs. [Solution] This early sign detection device collects operation data of an application, generates a correlation model representing a correlation between data values of the operation data and an application service level, and attempts to detect early signs of degradation of the application service level from data values of the latest operation data of the application on the basis of the correlation model. Upon detecting such an early sign, the early sign detection device selects, from among a plurality of instances of the application, both a first instance, to which a predetermined preventive measure is not to be applied, and a second instance, to which the predetermined preventive measure is to be applied, then applies the predetermined preventive measure to the second instance, and monitors the operation data of the first instance. Then if the early sign detection device has not detected any degradation in the application service level from the monitored operation data, the early sign detection device modifies said correlation model so as to prevent further detection of the early sign of degradation of the application service level as detected by the early sign detection device.