Download Distributed Applications and Interoperable Systems: 14th by Kostas Magoutis, Peter Pietzuch (eds.) PDF

By Kostas Magoutis, Peter Pietzuch (eds.)

This publication constitutes the court cases of the 14th IFIP overseas convention on allotted functions and Interoperable structures, DAIS 2014, held in Berlin, Germany, in June 2014. The 12 papers offered during this quantity have been rigorously reviewed and chosen from fifty three submissions. They take care of cloud computing, replicated garage, and large-scale systems.

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Additional resources for Distributed Applications and Interoperable Systems: 14th IFIP WG 6.1 International Conference, DAIS 2014, Held as Part of the 9th International Federated Conference on Distributed Computing Techniques, DisCoTec 2014, Berlin, Germany, June 3-5, 2014, Proce

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Adaptive and Scalable High Availability for Infrastructure Clouds 27 Cleanup Legacy Virtual Networks. A trivial approach for the infrastructure cleanup would be a simple script, checking the affected components in short intervals triggering the needed action when a failure is detected. This has the advantage of low intervals between the checks, but recovery is problematic when the script itself terminates unexpectedly. The cleanup could also be implemented using a reoccurring tasks framework like Cronjob, that is considered well-tested and reliable.

Failover Times for Stateless and Stateful Services receives a notification via the message bus and recreates the virtual infrastructure. Figure 4b shows a gap of pongs where the agent failed and a recovery of VM connectivity about 11 seconds later. This time period consists of the above parts of our automatic recovery procedure. The measurement shows that the automatic failover procedure is working without manual intervention and VMs are back online after a short period. 7 Conclusion Since adoption of cloud computing is steadily increasing, the need for reliability is getting more relevant and important for both, providers and customers of IaaS clouds.

For that reason, providers require trust-aware management policies aimed at retaining their reputation when unexpected failures occur. This paper proposes policies to operate cloud resources to minimise the impact of system failures in the reputation. On the one side, we discriminate clients under conflicting situations to favour those that would impact more positively the reputation of the provider. On the other side, we analyse the impact of management actions in the reputation and the revenue of the provider to select those with less impact when an actuation is required.

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