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Probabilistic fault diagnosis for IT services in noisy and dynamic environments

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5 Author(s)
Lu Cheng ; State Key Lab. of Networking & Switching Technol., Beijing Univ. of Posts & Telecommun., Beijing, China ; Xue-song Qiu ; Luoming Meng ; Yan Qiao
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The modern society has come to rely heavily on IT services. To improve the quality of IT services it is important to quickly and accurately detect and diagnose their faults which are usually detected as disruption of a set of dependent logical services affected by the failed IT resources. The task, depending on observed symptoms and knowledge about IT services, is always disturbed by noises and dynamic changing in the managed environments. We present a tool for analysis of IT services faults which, given a set of failed end-to-end services, discovers the underlying resources of faulty state. We demonstrate empirically that it applies in noisy and dynamic changing environments with bounded errors and high efficiency. We compare our algorithm with two prior approaches, Shrink and Max coverage, in two well-known types of network topologies. Experimental results show that our algorithm improves the overall performance.

Published in:

Integrated Network Management, 2009. IM '09. IFIP/IEEE International Symposium on

Date of Conference:

1-5 June 2009