1,720,975 research outputs found
Monitoring and management of a cloud application within a federation of cloud providers
No full textCloud federation is an emerging computing model where multiple resources from independent cloud providers are leveraged to create large-scale distributed virtual computing clusters, operating as within a single cloud organisation. This concept of service aggregation is characterised by interoperability features, which can address different problems about inter-cloud collaboration. One of the main issues within a cloud federation is related to the monitoring of the application deployed on resources coming from different vendors belonging to the federation. We present an agent-based architecture that aims at monitoring the user’s cloud environment provided by the federation: the elasticity of the proposed architecture allows the configuration and customisation of the monitoring infrastructure to adapt it to the specific cloud application. Agents will be strengthened by algorithms and rules used to monitor QoS parameters that are critical for the specific application. The prototypal implementation of the proposed framework will be applied on a testbed application to validate the monitoring architecture
An Agent-Based Collaborative Platform for the Optimized Trading of Renewable Energy within a Community
No full textCities are increasingly recognized for their ability
to play a catalytic role in addressing climate and energy chal-
lenges using technologically innovative approaches. Since en-
ergy used in urban areas accounts for about 40% of total
EU energy consumption, a change of direction towards re-
newable energy is necessary in order to alleviate the usage
of carbonized electricity and also to save money. A combina-
tion of IT and telecommunication technologies is necessary
to enable the energy and resources saving. ICT based so-
lutions can be used to enable energy and money saving not
only for a single building, but for the whole community of
a neighborhood. In this paper a model for the energy cost
minimization of a neighborhood together with an agent-based
interaction model that reproduces the proposed formal rep-
resentation is presented. Furthermore the authors present
a prototype implementation of this model and first experimen-
tal tests
Intrusion detection in federated clouds
No full textAbstract: In order to overcome the provisioning and scalability limits of a single cloud, cloud federation appears as the computing model in which multiple resources from independent cloud providers can be shared to create large-scale distributed virtual clusters. On the other hand, these complex architectures become an attractive target for distributed denial of service (DDoS) attacks. Although, federated cloud environments have large amount of resources and profound dynamic allocation capability, which can be used to face DDoS attacks, they are however vulnerable to attacks that aim at compromising the service level agreements. In this paper, we investigate the key research topics for supporting distributed intrusion detection in a federated cloud environment. We propose a scalable intrusion detection solution, which can be used by cloud providers to protect the federated cloud infrastructure, as well as offered to the cloud service providers to monitor the hosted applications. We present a multi-layer architecture, which exploits a publish/subscribe middleware to collect and share security information in the federated cloud infrastructure. Moreover, we present an open-source framework, which provides features and interfaces to develop and deploy security components, as well as to define customised event correlation rules used to detect possible inter-cloud attacks
Design of an agent based monitoring framework for federated clouds
No full textAbstract—In the last years, the Cloud services market
experienced an extremely rapid growth, which may lead to
severe scalability problems. Therefore, in order to cope with the
resource capacity limits of a single Cloud provider, as well as to
address the vendor lock-in problem associated to the choice of
a single proprietary Cloud solution, the concept of federating
multiple heterogeneous organizations is receiving an increasing
attention by the key players in the Cloud services market; this
model enables the implementation of environmental diversity
for Cloud applications and overcomes the provisioning and
scalability limits of a single Cloud. One of the main issues
within a Cloud federation is related to the monitoring of
the application deployed on resources coming from different
vendors belonging to the federation. In this work we present
an agent based approach to monitor the user’s Cloud environment
provided by the federation: a multi-layer architecture
is proposed where each part aims at monitoring different
aspects of the multi-Cloud infrastructure, starting from the
detection of critical conditions on low level parameters for the
computational units and composing different monitoring levels
in order to check the federated SLA
Agent-Based Intrusion Detection for Federated Clouds
No full textIn the last years, the cloud services market has experienced an extremely rapid growth, as reported in several market research reports, which may lead to severe scalability problems. Therefore, federating multiple clouds is enjoying a lot of attention from the academic and commercial point of views. In this context, publish-subscribe is a widely used paradigm to support the interoperability of federated clouds. In this paper, we describe some potential vulnerabilities of a publish-subscribe based federated cloud system. In particular, we propose an agentbased system that aims at monitoring security vulnerabilities that affect such kind of inter-cloud cooperation solutions
An Agent-Based Platform for Cloud Applications Performance Monitoring
No full textThe monitoring of the resources is one among the
major challenges that the virtualization brings with it within
the Cloud environments. In order to ensure scalability and
dependability, the user’s applications are often distributed on
several computational resources, such as Virtual Machines,
storages and so on. For this reason, the customer is able to
retrieve information about the Cloud infrastructure only by
acquiring monitoring services provided by the same vendor
that is offering the Cloud resources, thus being forced to trust
the Cloud provider about the detected performance indexes.
In this work we present a complete architecture that covers
all the monitoring activities that take place within a Cloud
application lifecycle: we also propose an agent-based implementation
of a particular module of the designed architecture
that ensures high customization of the monitoring facility and
more tolerance to network and resource failures
- …
