Evaluating Multi-tenant Live Migrations Effects on Performance

Rosinosky, Guillaume;Labba, Chahrazed;Ferme, Vincenzo;Youcef, Samir;Pautasso, Cesare;et.al.
(2018) On the Move toMeaningful Internet Systems — Location: Valletta, Malta (22.August.2018)

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Authors
  • Author
  • Labba, Chahrazedorcid-logoUniversité de Lorraine, France
    Author
  • Ferme, VincenzoUniversity of Lugano, Switzerland
    Author
  • Youcef, Samirorcid-logoUniversité de Lorraine, France
    Author
  • Pautasso, CesareUniversity of Lugano, Switzerland
    Author
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Abstract
Multitenancy is an important feature for all Everything asa Service providers like Business Process Management as a Service. Itallows to reduce the cost of the infrastructure since multiple tenantsshare the same service instances. However, tenants have dynamic work-loads. The resource they share may not be sufficient at some point intime. It may require Cloud resource (re-)configurations to ensure a givenQuality of Service. Tenants should be migrated without stopping the ser-vice from a configuration to another to meet their needs while minimiz-ing operational costs on the provider side. Live migrations reveal manychallenges: service interruption must be minimized and the impact onco-tenants should be minimal. In this paper, we investigate live tenantsmigrations duration and its effects on the migrated tenants as well asthe co-located ones. To do so, we propose a generic approach to measurethese effects for multi-tenant Software as a Service. Further, we proposea testing framework to simulate workloads, and observe the impact oflive migrations on Business Process Management Systems. The exper-imental results highlight the efficiency of our approach and show thatmigration time depends on the size of data that have to be transferredand that the effects on co-located tenants should not be neglected.
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Citations

Rosinosky, G., Labba, C., Ferme, V., Youcef, S., Charoy, F., & Pautasso, C. (2018). Evaluating Multi-tenant Live Migrations Effects on Performance. Lecture Notes in Computer Science : On the Move to Meaningful Internet Systems. OTM 2018 Conferences, p. 61-77. https://doi.org/10.1007/978-3-030-02610-3_4