Achieving self-healing in service delivery software systems by means of case-based reasoning |
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Authors: | Stefania Montani Cosimo Anglano |
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Affiliation: | (1) Dipartimento di Informatica, Università del Piemonte Orientale, Alessandria, Italy |
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Abstract: | Self-healing, i.e. the capability of a system to autonomously detect failures and recover from them, is a very attractive
property that may enable large-scale software systems, aimed at delivering services on a 24/7 fashion, to meet their goals
with little or no human intervention. Achieving self-healing requires the elicitation and maintenance of domain knowledge
in the form of 〈service failure diagnosis, repair plan〉 patterns, a task which can be overwhelming. Case-Based Reasoning (CBR)
is a lazy learning paradigm that largely reduces this kind of knowledge acquisition bottleneck. Moreover, the application
of CBR for failure diagnosis and remediation in software systems appears to be very suitable, as in this domain most errors
are re-occurrences of known problems. In this paper, we describe a CBR approach for providing large-scale, distributed software
systems with self-healing capabilities, and demonstrate the practical applicability of our methodology by means of some experimental
results on a real world application. |
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