Service Based System Monitoring Framework

Abstract: Web Service Based Systems (SBS) are essentially dis-tributed in nature and in most cases facilitated through third party service providers. This necessitates monitoring of the pro-visioning of SBS at run-time. Further, monitoring of SBS in a non-intrusive and composition-platform independent manner is a real challenge. This paper proposes a framework for moni-toring the compliance of a set of pre-specified requirements of a SBS. The requirements may include behavioral properties of SBS and/or assumptions that service providers may specify in terms of events that can be extracted from SBS at run-time. A Monitor Specification Language (MSL) has been developed to specify the properties of the system to be monitored at run-time. The language has the ability to specify boolean, statistical, and time-related properties. The specifications are automati-cally translated into executable C programs which act as run-time monitors to monitor the specified properties by capturing run-time events from the business layer, service layer and in-frastructure layer of the SBS. However, in the proposed frame-work the SBS runs quite independent of the monitoring func-tionality in a non-intrusive manner