Welcome!

Agile Computing Authors: Elizabeth White, Liz McMillan, Pat Romanski, Jeev Trika, ManageEngine IT Matters

Related Topics: @CloudExpo

@CloudExpo: Article

Creating a Common Cloud Computing Reference API - Part One

A lot of what I'm outlining here may be better suited to a reference implementation than a standard

Reuven Cohen's "ElasticVapor" Blog

Over the last few weeks I've been engaged in several conversations about the need for a common, interoperable and open set of cloud computing standards. During these conversations a recurring theme has started to emerge. A need for cloud interoperability or the ability for diverse cloud systems and organizations to work together in a common way.

In my discussion yesterday with Rich Wolski of the Eucalyptus project he described the need for a "CloudVirt" API similar to that of the Libvirt project for virtualization. For those of you that don't know about libvirt, it's an open source toolkit which enables a common API interaction with the virtualization capabilities of recent versions of Linux (and other OSes).

I would like to take this opportunity to share my ideas as well as get some feedback on some of the key points I see for the creation of common cloud computing reference API or standard.

* Cloud Resource Description
The ability to describe resources is (in my opinion) the most important aspect of any standardization effort. One potential avenue might be to use the Resource Description Framework proposed by the W3C. The Resource Description Framework (RDF) is a family of specifications, originally designed as a metadata data model, which has come to be used as a general method of modeling information through a variety of syntax formats. The RDF metadata model is based upon the idea of making statements about Web resources (or Cloud Resources) in the form of subject-predicate-object expressions, called triples in RDF lingo. This standardized approach could be modified as a primary mechanism for describing cloud resources both locally and remotely.

* Cloud Federation (Cloud 2 Cloud)
The holy grail of cloud computing may very well be the ability to seamlessly bridge both private clouds (datacenters) and remote cloud resources such as EC2 in a secure and efficient manor. To accomplish this a federation standard must be enabled. One of the biggest hurdles to over come in federation is the lack of clear definition to what federation is.

So let me take a stab at defining it.

Cloud federation manages consistency and access controls when two or more independent geographically distinct clouds share either authentication, files, computing resources, command and control or access to storage resources. Cloud federations can be classified into three categories: peer-to-peer, replication, and hierarchical. Peer 2 peer seems to be the most logical first step in creating a federation spec. Protocols like XMPP, P4P and Virtual Distributed Ethernet may make for good starting points.

* Distributed Network Management
The need for a distributed and optimized virtual network is an important aspect in any multi-cloud deployment. One potential direction could be to explore the use of VPN or VDE technologies. My preference would be to use VDE, (Virtual Distributed Ethernet). A quick refresher, a VPN is a way to connect one or more remote computers to a protected network, generally tunnelling the traffic through another network. VDE implements a virtual ethernet in all its aspects, virtual switches, virtual cables. A VDE can also be used to create a VPN.

VDE interconnects real computers running (through a tap interface), virtual machines as well as the other networking interfaces through a common open framework. VDE supports heterogeneous virtual machines running on different hosting computers and could be the ideal starting point. Network shaping and optimization may also play an important role in the ability to bridge two or cloud resources.

Some network optimization aspects may include;

  • Compression - Relies on data patterns that can be represented more efficiently.
  • Caching/Proxy - Relies on human behavior , accessing the same data over and over.
  • Protocol Spoofing - Bundles multiple requests from chatty applications into one.
  • Application Shaping - Controls data usage based on spotting specific patterns in the data and allowing or disallowing specific traffic.
  • Equalizing - Makes assumptions on what needs immediate priority based on the data usage.
  • Connection Limits - Prevents access gridlock in routers and access points due to denial of service or peer to peer.
  • Simple Rate Limits - Prevents one user from getting more than a fixed amount of data.

* Memory Management
When looking at the creation of compute cloud memory tends to be a major factor in the performance of a given virtual environment, whether a virtual machine or some other application component. Cloud memory management will need to involve ways to allocate portions of virtual memory to programs at their request, and freeing it for reuse when no longer needed. This is particularly important in "platform as a service" cloud deployments.

Several key memory management aspects may include;

  • Provide memory space to enable several processes to be executed at the same time
  • Provide a satisfactory level of performance for the system users
  • Protect each program's resources
  • Share (if desired) memory space between processes
  • Make the addressing of memory space as transparent as possible for the programmer.

* Distributed Storage
I've been working on creating a cloud abstraction layer called "cloud raid" as part of our ElasticDrive platform and have been looking at different approaches for our implementation. My initial idea is to connect multiple remote cloud storage services (S3, Nirvanix, CloudFS) for a variety of purposes. During my research the XAM specification began to look like the most suitable candidate. XAM addresses storage interoperability, information assurance (security), storage transparency, long-term records retention and automation for Information Lifecycle Management (ILM)-based practices.

XAM looks to solve key cloud storage problem spots including;

  • Interoperability: Applications can work with any XAM conformant storage system; information can be migrated and shared
  • Compliance: Integrated record retention and disposition metadata
  • ILM Practices: Framework for classification, policy, and implementation
  • Migration: Ability to automate migration process to maintain long-term readability
  • Discovery: Application-independent structured discovery avoids application obsolescence

Potential Future Additions to the API

* I/o
The virtualization of I/O resources is a critical part of enabling a set of emerging cloud deployment models. In large scale cloud deployments a recurring issue has the ability to effectively management I/o resources whether on a machine level or network. One of the problems a lot of users are encountering is that of the "nasty neighbor" or a user who has taken all available system I/o resources.

A common I/o API for sharing, security, performance, and scalability will need to be addressed to help resolve these issues. I've been speaking with several hardware vendors on how we might be able to address this problem. This will most like have to be done at a later point after a first draft has been released.

* Monitoring and System Metrics
One of the best aspects of using cloud technology is the ability to scale applications in tandem to the underlying infrastructure and the demands placed on it. Rather then just scaling on system load, users should have the ability to selectively scale on other metrics such as response time, network throughput or other metrics made available. Having a uniform way to interact with system metrics will enable cloud providers and consumers a common way to scale applications.

Security & Auditability.
In my conversations with several wall street CIO's the questions of both security and cloud transparency with regards to external audits has come up frequently.

My list of requirements is by no means a complete list. Cloud computing encompasses a wide variety of technologies, architectures and deployment models. What I am attempting to do is address the initial pain points whether you are deploying a cloud or just using it. A lot of what I've outlined may be better suited to a reference implementation than a standard, but none the less I thought I'd put these out ideas out for discussion.

-- Update --

Looks like I've forgotten an obvious yet important aspect to my cloud standards. Authentication. Maybe something like OAuth or OpenID could form the basis for this as well. I'll need to do some more thinking on this one.

More Stories By Reuven Cohen

An instigator, part time provocateur, bootstrapper, amateur cloud lexicographer, and purveyor of random thoughts, 140 characters at a time.

Reuven is an early innovator in the cloud computing space as the founder of Enomaly in 2004 (Acquired by Virtustream in February 2012). Enomaly was among the first to develop a self service infrastructure as a service (IaaS) platform (ECP) circa 2005. As well as SpotCloud (2011) the first commodity style cloud computing Spot Market.

Reuven is also the co-creator of CloudCamp (100+ Cities around the Globe) CloudCamp is an unconference where early adopters of Cloud Computing technologies exchange ideas and is the largest of the ‘barcamp’ style of events.

Comments (1) View Comments

Share your thoughts on this story.

Add your comment
You must be signed in to add a comment. Sign-in | Register

In accordance with our Comment Policy, we encourage comments that are on topic, relevant and to-the-point. We will remove comments that include profanity, personal attacks, racial slurs, threats of violence, or other inappropriate material that violates our Terms and Conditions, and will block users who make repeated violations. We ask all readers to expect diversity of opinion and to treat one another with dignity and respect.


Most Recent Comments
MiamiWebDesigner 08/25/08 06:25:14 AM EDT

Kudos to the Cloud Crowd for Re-Inventing the Wheel!

One thing 30 years in the IT industry has taught me is that the more things change, the more they stay the same. Another is that the only memory we seem to access is short-term. Yet another is that techno-marketeers rely on that, so they can put labels like "revolutionary" and "innovative" on platforms, products and services that are mere re-inventions of the wheel ... and often poor copies at that.

A good example is all the buzz about "Cloud Computing" in general and "SaaS" (software as a service) in particular:

http://tinyurl.com/6let8x

Both terms are bogus. The only true cloud computing takes place in aircraft. What they're actually referring to by "the cloud" is a large-scale and often remotely located and managed computing platform. We have had those since the dawn of electronic IT. IBM calls them "mainframes":

http://tinyurl.com/5kdhcb

The only innovation offered by today's cloud crowd is actually more of a speculation, i.e. that server farms can deliver the same solid performance as Big Iron. And even that's not original. Anyone remember Datapoint's ARCnet, or DEC's VAXclusters? Whatever happened to those guys, anyway...?

And as for SaaS, selling the sizzle while keeping the steak is a marketing ploy most rightfully accredited to society's oldest profession. Its first application in IT was (and for many still is) known as the "service bureau". And I don't mean the contemporary service bureau (mis)conception labelled "Service 2.0" by a Wikipedia contributor whose historical perspective is apparently constrained to four years:

http://tinyurl.com/5fpb8e

Instead, I mean the computer service bureau industry that spawned ADAPSO (the Association of Data Processing Service Organizations) in 1960, and whose chronology comprises a notable portion of the IEEE's "Annals of the History of Computing":

http://tinyurl.com/5lvjdl

So ... for any of you slide rule-toting, pocket-protected keypunch-card cowboys who may be just coming out of a 40-year coma, let me give you a quick IT update:

1. "Mainframe" is now "Cloud" (with concomitant ethereal substance).

2. "Terminal" is now "Web Browser" (with much cooler games, and infinitely more distractions).

3. "Service Bureau" is now "SaaS" (but app upgrades are just as painful, and custom mods equally elusive).

4. Most IT buzzwords boil down to techno-hyped BS (just as they always have).

Bruce Arnold, Web Design Miami Florida
http://www.PervasivePersuasion.com

@ThingsExpo Stories
Businesses are struggling to manage the information flow and interactions between all of these new devices and things jumping on their network, and the apps and IT systems they control. The data businesses gather is only helpful if they can do something with it. In his session at @ThingsExpo, Chris Witeck, Principal Technology Strategist at Citrix, will discuss how different the impact of IoT will be for large businesses, expanding how IoT will allow large organizations to make their legacy ap...
Video experiences should be unique and exciting! But that doesn’t mean you need to patch all the pieces yourself. Users demand rich and engaging experiences and new ways to connect with you. But creating robust video applications at scale can be complicated, time-consuming and expensive. In his session at @ThingsExpo, Zohar Babin, Vice President of Platform, Ecosystem and Community at Kaltura, will discuss how VPaaS enables you to move fast, creating scalable video experiences that reach your...
In his keynote at 18th Cloud Expo, Andrew Keys, Co-Founder of ConsenSys Enterprise, provided an overview of the evolution of the Internet and the Database and the future of their combination – the Blockchain. Andrew Keys is Co-Founder of ConsenSys Enterprise. He comes to ConsenSys Enterprise with capital markets, technology and entrepreneurial experience. Previously, he worked for UBS investment bank in equities analysis. Later, he was responsible for the creation and distribution of life sett...
Internet of @ThingsExpo, taking place November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 19th Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The Internet of Things (IoT) is the most profound change in personal and enterprise IT since the creation of the Worldwide Web more than 20 years ago. All major researchers estimate there will be tens of billions devices - comp...
Cloud computing is being adopted in one form or another by 94% of enterprises today. Tens of billions of new devices are being connected to The Internet of Things. And Big Data is driving this bus. An exponential increase is expected in the amount of information being processed, managed, analyzed, and acted upon by enterprise IT. This amazing is not part of some distant future - it is happening today. One report shows a 650% increase in enterprise data by 2020. Other estimates are even higher....
SYS-CON Events announced today that SoftLayer, an IBM Company, has been named “Gold Sponsor” of SYS-CON's 18th Cloud Expo, which will take place on June 7-9, 2016, at the Javits Center in New York, New York. SoftLayer, an IBM Company, provides cloud infrastructure as a service from a growing number of data centers and network points of presence around the world. SoftLayer’s customers range from Web startups to global enterprises.
One of biggest questions about Big Data is “How do we harness all that information for business use quickly and effectively?” Geographic Information Systems (GIS) or spatial technology is about more than making maps, but adding critical context and meaning to data of all types, coming from all different channels – even sensors. In his session at @ThingsExpo, William (Bill) Meehan, director of utility solutions for Esri, will take a closer look at the current state of spatial technology and ar...
Fifty billion connected devices and still no winning protocols standards. HTTP, WebSockets, MQTT, and CoAP seem to be leading in the IoT protocol race at the moment but many more protocols are getting introduced on a regular basis. Each protocol has its pros and cons depending on the nature of the communications. Does there really need to be only one protocol to rule them all? Of course not. In his session at @ThingsExpo, Chris Matthieu, co-founder and CTO of Octoblu, walk you through how Oct...
19th Cloud Expo, taking place November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, will feature technical sessions from a rock star conference faculty and the leading industry players in the world. Cloud computing is now being embraced by a majority of enterprises of all sizes. Yesterday's debate about public vs. private has transformed into the reality of hybrid cloud: a recent survey shows that 74% of enterprises have a hybrid cloud strategy. Meanwhile, 94% of enterpri...
The vision of a connected smart home is becoming reality with the application of integrated wireless technologies in devices and appliances. The use of standardized and TCP/IP networked wireless technologies in line-powered and battery operated sensors and controls has led to the adoption of radios in the 2.4GHz band, including Wi-Fi, BT/BLE and 802.15.4 applied ZigBee and Thread. This is driving the need for robust wireless coexistence for multiple radios to ensure throughput performance and th...
What are the new priorities for the connected business? First: businesses need to think differently about the types of connections they will need to make – these span well beyond the traditional app to app into more modern forms of integration including SaaS integrations, mobile integrations, APIs, device integration and Big Data integration. It’s important these are unified together vs. doing them all piecemeal. Second, these types of connections need to be simple to design, adapt and configure...
“We're a global managed hosting provider. Our core customer set is a U.S.-based customer that is looking to go global,” explained Adam Rogers, Managing Director at ANEXIA, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York City, NY.
Is your aging software platform suffering from technical debt while the market changes and demands new solutions at a faster clip? It’s a bold move, but you might consider walking away from your core platform and starting fresh. ReadyTalk did exactly that. In his General Session at 19th Cloud Expo, Michael Chambliss, Head of Engineering at ReadyTalk, will discuss why and how ReadyTalk diverted from healthy revenue and over a decade of audio conferencing product development to start an innovati...
In his general session at 18th Cloud Expo, Lee Atchison, Principal Cloud Architect and Advocate at New Relic, discussed cloud as a ‘better data center’ and how it adds new capacity (faster) and improves application availability (redundancy). The cloud is a ‘Dynamic Tool for Dynamic Apps’ and resource allocation is an integral part of your application architecture, so use only the resources you need and allocate /de-allocate resources on the fly.
What happens when the different parts of a vehicle become smarter than the vehicle itself? As we move toward the era of smart everything, hundreds of entities in a vehicle that communicate with each other, the vehicle and external systems create a need for identity orchestration so that all entities work as a conglomerate. Much like an orchestra without a conductor, without the ability to secure, control, and connect the link between a vehicle’s head unit, devices, and systems and to manage the ...
If you had a chance to enter on the ground level of the largest e-commerce market in the world – would you? China is the world’s most populated country with the second largest economy and the world’s fastest growing market. It is estimated that by 2018 the Chinese market will be reaching over $30 billion in gaming revenue alone. Admittedly for a foreign company, doing business in China can be challenging. Often changing laws, administrative regulations and the often inscrutable Chinese Interne...
As ridesharing competitors and enhanced services increase, notable changes are occurring in the transportation model. Despite the cost-effective means and flexibility of ridesharing, both drivers and users will need to be aware of the connected environment and how it will impact the ridesharing experience. In his session at @ThingsExpo, Timothy Evavold, Executive Director Automotive at Covisint, will discuss key challenges and solutions to powering a ride sharing and/or multimodal model in the a...
SYS-CON Events announced today that CDS Global Cloud, an Infrastructure as a Service provider, will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. CDS Global Cloud is an IaaS (Infrastructure as a Service) provider specializing in solutions for e-commerce, internet gaming, online education and other internet applications. With a growing number of data centers and network points around the world, ...
SYS-CON Events announced today that LeaseWeb USA, a cloud Infrastructure-as-a-Service (IaaS) provider, will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. LeaseWeb is one of the world's largest hosting brands. The company helps customers define, develop and deploy IT infrastructure tailored to their exact business needs, by combining various kinds cloud solutions.
Big Data has been changing the world. IoT fuels the further transformation recently. How are Big Data and IoT related? In his session at @BigDataExpo, Tony Shan, a renowned visionary and thought leader, will explore the interplay of Big Data and IoT. He will anatomize Big Data and IoT separately in terms of what, which, why, where, when, who, how and how much. He will then analyze the relationship between IoT and Big Data, specifically the drilldown of how the 4Vs of Big Data (Volume, Variety,...