Digital Edition

SYS-CON.TV
Advance Reservation of Capacity in Virtualized and Cloud Infrastructures
New Release of the Haizea Lease Manager

Haizea is an open source lease management architecture that OpenNebula can use as a scheduling backend. Haizea can also be run in simulation, providing a platform for experimenting with scheduling algorithms that depend on VM (Virtual Machine) deployment or on the leasing abstraction. Haizea uses leases as a fundamental resource provisioning abstraction, and implements those leases as virtual machines, taking into account the overhead of using virtual machines (e.g., deploying a disk image for a VM) when scheduling leases. Using OpenNebula with Haizea allows resource providers to lease their resources, using potentially complex lease terms, instead of only allowing users to request VMs that must start immediately.

One of the types of lease implemented by Haizea is advance reservation of capacity. Other VM management solutions and cloud providers like Amazon EC2, Flexiscale or ElasticHost use immediate, where VMs mu st be allocated right away or not at all, or best-effort, where VMs state pending until resource allocation, provisioning models. Service provisioning clouds have requirements that cannot be supported only with an immediate provisioning model, such as resource requests that are subject to non-trivial policies and capacity reservations at specific times to meet peak capacity requirements. They want to rely on advance reservation in order to ensure the service workload can be executed at the provider’s site. Additionally, smaller clouds with limited resources, where not all requests may be satisfiable immediately for lack of resources could benefit from more complex VM placement strategies supporting queues, priorities, and advance reservations. Advance reservation is also required for co-allocation of service components within or across cloud providers.

I recommend the post on Haizea and Private Clouds written by Borja Sotomayor, author of Haizea, to know more details about this useful technology and its position in the Cloud ecosystem.

The latest version of the Haizea Lease Manager (Technology Preview 1.3) was released a few days ago. Technology Preview 1.3 now includes support for OpenNebula 1.2, and enhanced stability and robustness. This is a new step towards TP2.0, which will include a policy engine and several novel scheduling features.
About Ignacio M. Llorente
Dr. Llorente is Director of the OpenNebula Project and CEO & co-founder at C12G Labs. He is an entrepreneur and researcher in the field of cloud and distributed computing, having managed several international projects and initiatives on Cloud Computing, and authored many articles in the leading journals and proceedings books. Dr. Llorente is one of the pioneers and world's leading authorities on Cloud Computing. He has held several appointments as independent expert and consultant for the European Commission and several companies and national governments. He has given many keynotes and invited talks in the main international events in cloud computing, has served on several Groups of Experts on Cloud Computing convened by international organizations, such as the European Commission and the World Economic Forum, and has contributed to several Cloud Computing panels and roadmaps. He founded and co-chaired the Open Grid Forum Working Group on Open Cloud Computing Interface, and has participated in the main European projects in Cloud Computing. Llorente holds a Ph.D in Computer Science (UCM) and an Executive MBA (IE Business School), and is a Full Professor (Catedratico) and the Head of the Distributed Systems Architecture Group at UCM.



ADS BY GOOGLE
Subscribe to the World's Most Powerful Newsletters

ADS BY GOOGLE

Your job is mostly boring. Many of the IT operations tasks you perform on a day-to-day basis are rep...
Serveless Architectures brings the ability to independently scale, deploy and heal based on workload...
Technological progress can be expressed as layers of abstraction - higher layers are built on top of...
When building large, cloud-based applications that operate at a high scale, it’s important to mainta...
Whenever a new technology hits the high points of hype, everyone starts talking about it like it wil...
Having been in the web hosting industry since 2002, dhosting has gained a great deal of experience w...
CloudEXPO | DevOpsSUMMIT | DXWorldEXPO Silicon Valley 2019 will cover all of these tools, with the m...
Big Switch's mission is to disrupt the status quo of networking with order of magnitude improvements...
Lori MacVittie is a subject matter expert on emerging technology responsible for outbound evangelism...
Every organization is facing their own Digital Transformation as they attempt to stay ahead of the c...
"Calligo is a cloud service provider with data privacy at the heart of what we do. We are a typical ...
In his general session at 19th Cloud Expo, Manish Dixit, VP of Product and Engineering at Dice, disc...
In his session at 21st Cloud Expo, Michael Burley, a Senior Business Development Executive in IT Ser...
NanoVMs is the only production ready unikernel infrastructure solution on the market today. Unikerne...
SUSE is a German-based, multinational, open-source software company that develops and sells Linux pr...
Bill Schmarzo, Tech Chair of "Big Data | Analytics" of upcoming CloudEXPO | DXWorldEXPO New York (No...
All in Mobile is a mobile app agency that helps enterprise companies and next generation startups bu...
Dynatrace is an application performance management software company with products for the informatio...
Yottabyte is a software-defined data center (SDDC) company headquartered in Bloomfield Township, Oak...
Chris Matthieu is the President & CEO of Computes, inc. He brings 30 years of experience in developm...