Title
Reliable State Monitoring in Cloud Datacenters
Abstract
State monitoring is widely used for detecting critical events and abnormalities of distributed systems. As the scale of such systems grows and the degree of workload consolidation increases in Cloud data centers, node failures and performance interferences, especially transient ones, become the norm rather than the exception. Hence, distributed state monitoring tasks are often exposed to impaired communication caused by such dynamics on different nodes. Unfortunately, existing distributed state monitoring approaches are often designed under the assumption of always-online distributed monitoring nodes and reliable inter-node communication. As a result, these approaches often produce misleading results which in turn introduce various problems to Cloud users who rely on state monitoring results to perform automatic management tasks such as auto-scaling. This paper introduces a new state monitoring approach that tackles this challenge by exposing and handling communication dynamics such as message delay and loss in Cloud monitoring environments. Our approach delivers two distinct features. First, it quantitatively estimates the accuracy of monitoring results to capture uncertainties introduced by messaging dynamics. This feature helps users to distinguish trustworthy monitoring results from ones heavily deviated from the truth, yet significantly improves monitoring utility compared with simple techniques that invalidate all monitoring results generated with the presence of messaging dynamics. Second, our approach also adapts to non-transient messaging issues by reconfiguring distributed monitoring algorithms to minimize monitoring errors. Our experimental results show that, even under severe message loss and delay, our approach consistently improves monitoring accuracy, and when applied to Cloud application auto-scaling, outperforms existing state monitoring techniques in terms of the ability to correctly trigger dynamic provisioning.
Year
DOI
Venue
2012
10.1109/CLOUD.2012.10
IEEE CLOUD
Keywords
Field
DocType
state monitoring technique,state monitoring,messaging dynamic,reliable state monitoring,state monitoring approach,trustworthy monitoring result,state monitoring task,cloud datacenters,monitoring result,cloud monitoring environment,state monitoring result,new state monitoring approach,histograms,servers,estimation,accuracy,reliability,cloud computing
Histogram,Process communication,Message delay,Computer science,Trustworthiness,Server,Provisioning,Real-time computing,Workload consolidation,Cloud computing,Distributed computing
Conference
Citations 
PageRank 
References 
19
1.39
13
Authors
7
Name
Order
Citations
PageRank
Shicong Meng126917.55
Arun Iyengar21815203.64
Isabelle M. Rouvellou344244.23
Ling Liu45020344.35
Kisung Lee534227.05
Balaji Palanisamy640036.26
Yuzhe Tang714721.06