QAC 2016

Quality of Service Assurance in the Cloud ‐ QAC 2016 as part of CloudCom 2016, Luxembourg, December 12, 2016.

Scope

Cloud computing offers a computational model where network, storage, and compute domains can be
abstracted into virtual resources offered on demand. While these abstractions offer opportunities to
significantly simplify the management and optimize the use of resources, they impose additional
challenges on assuring the quality of service (QoS).

In the context of multi‐tenancy, the same physical resources are shared by different users that do not
necessarily share the same service level agreements; hence the QoS distinction has to be enforced at a
finer grain. Moreover, certain attributes of the QoS may contradict with others, for instance, high
availability favors replication and distributed redundancy while energy efficiency favors de-duplication
and consolidation. The multi-layered architecture of the distributed cloud requires not only a thorough
orchestration between layers to ensure the required QoS, but also makes the root cause analysis even
more complicated in case of the SLA violation. Continuous changes and migrations of the resources
allocated at all layers of abstraction pose further challenges to detecting problems, identifying their
location and reasoning about causality.

The aim of this workshop is to raise awareness of the challenges of the QoS assurance in the cloud, and
bring together practitioners and researchers to discuss potential solutions.

Topics

The workshop solicits high‐quality papers authored by both industry and academic contributors that address (but not limited to) the following topics:

• Security assurance, and regulations compliance in the Cloud
• Multi-level isolation orchestration for the Cloud tenants
• High Availability and fault tolerance approaches and techniques in the Cloud
• Dynamic performance assessment and prediction
• Telemetry and smart metering in the Cloud
• Managing Carbon Footprint versus QoS trade-­‐offs
• Requirement modeling and specification for the QoS
• Orchestration and refinement for cloud QoS policies
• Dynamic verification and validation of cloud service quality
• Automated generation of multi-layer QoS test cases
• Autonomic approaches for assurance of cloud service quality
• Real-time analytics integration with QoS control loops
• Evaluations of cloud QoS impact on application or service QoE
• Automatic generation of workflows related to assuring QoS in cloud
• Machine learning and data mining techniques for optimizing QoS assurance processes
• The effect of virtualization (VMs vs. Containers, NFV vs. specialized HW) on QoS

Important Dates

Submissions

The workshop papers should be no more than 6 pages (including references) in IEEE double column
format. Papers should be submitted electronically via the workshop submission site. For an accepted
paper, at least one author must register and attend the workshop. The workshop proceedings will be
included in the conference proceedings that will be published in the IEEE Xplore library.

Submissions will be done electronically through EasyChair: https://easychair.org/conferences/?conf=qac2016

Organizers

Publicity Chair

Program Committee

Agenda

Workshop Agenda:

• Date: Monday December 12, 2016
• Time: 9:00 am - 12:15 pm
• Room: Fischbach

Program:

• 9:00 - 9:10: Workshop opening
• 9:10 - 9:40: Keynote presentation
• 9:40 - 10:05: Containers or Hypervisors, Which is Better for Database Consolidation?
  • Asraa Abdulrazak Ali Mardan and Kenji Kono
• 10:05 - 10:30: Performance Implications of Resource Allocation during the Live Migration
  • Sogand Shirinbab and Lars Lundberg
• 10:30 - 11:00: Coffee Break
• 11:00 - 11:25: QoS Assurance with Light Virtualization - A Survey
  • Parisa Heidari, Yves Lemieux and Abdallah Shami
• 11:25 - 11:50: Mitigating the Risk of Cloud Services Downtime Using Live Migration and High Availability-Aware Placement
  • Manar Jammal, Hassan Hawilo and Abdallah Shami
• 11:50 - 12:15: Self-Healing Redundancy for OpenStack Applications through Fault-Tolerant Multi-agent Task Scheduling
  • Fereydoun Farrahi Moghaddam, Abdelouahed Gherbi and Yves Lemieux
• 12:15 - 13:30: Lunch