- occi-wg - lists.ogf.org

OCCI Core/Rendering feedback
by Jean Parpaillon 26 Sep '13

26 Sep '13

Hi, As proposed during our session in last plugfest, here is my feedback about OCCI Core (and rendering). Background: - while working on CompatibleOne project, try to propose an XML representation of OCCI - developing an erlang-based OCCI framework (erocci) Comments; == == Understandability == It took me a lot of time to understand the categorization meta-model. These comments are highly subjectives then... Nevertheless, I think the following items could help understand the specifications more quickly: - In a general way, OCCI Core specification could provide some more examples to understand the categorization model. HTTP and infrastructure specifications have been of greater help than Core. - OCCI Core specifications could clarify the link between OCCI types and notions most of developers are familiar with, like: objects, classes, interfaces, polymorphisms, etc. == == Missing == Some elements should be present in the OCCI Core specification for avoiding any ambiguity in the implementations. - attribute default value: when an attribute is required and immutable, it is up to the implementation to choose a default value when creating the resource. The specification should provide a default value in this case. - attribute base typing: the specification should formalize base types for attributes. XML schema specification provides 44 "builtin" types[0], for instance. - attribute type extension/restriction: in Infrastructure specification, for instance, extended types are used, but not formally defined: enum, ip, mac address, etc. The OCCI Core specification should provide some mechanisms to extend/restrict base types: enumeration, string patterns, decimal precision ?, integer range ?, etc. - state machine: many actions are defined with the target state of the resource. The OCCI specification may provide a way to define state-machine handling in a formal way. I've been working on the Aeolus project[1] which published really interesting model for planification of resources handling on cloud systems. I'm still in touch with them and they look interested in using OCCI to implement their system. This is quite mid term action but I will keep you informed if something interesting comes from that. == == Rendering specifications == All rendering specifications should include a formal grammar or schema. Andy Edmonds has provided a text/plain and text/occi rendering antlr grammar. Nevertheless, many of quoted values need to be parsed again to get the full structure of the request. I'm not aware enough of antlr to know if we can do better, but that be nice. Based on that, I've also written a Yacc-style grammar for text/plain[3] (exactly Yecc, an erlang implementation), but I have the same problem: QUOTED_VALUE is a terminal. Anyway, I strongly suggest this grammar to be part of the OCCI HTTP rendering specifications, maybe as an appendix. I've discovered (this week-end :) ) that JSON schemas specification exist, and their are implemented in a lot of libraries, JSON specification should then include a schema of this kind. Same for XML... Last but not least, we may agree on a reference meta-language to describe OCCI extension and include such description as appendix to each extension. AFAIK, XML is the most complete meta-language for this purpose. Comments welcome, Best regards, Jean [0] http://www.w3.org/TR/xmlschema-2/#built-in-datatypes [1] http://www.aeolus-project.org/ [2] http://www.upsilon.cc/~zack/research/publications/sefm2012-aeolus.pdf [3] https://github.com/jeanparpaillon/erocci/blob/master/src/rendering/occi_par… -- Jean Parpaillon Open Source Consultant Phone: +33 6 30 10 92 86 im: jean.parpaillon(a)gmail.com skype: jean.parpaillon linkedin: http://www.linkedin.com/in/jeanparpaillon/en

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Versioning RESTful Services v2 | Howard Dierking
by Sill, Alan 23 Sep '13

23 Sep '13

Thought you would be interested in the blog post at the following link, having to do with principles for API versioning Topic: Since publishing both the REST Fundamentals course as well as my previous post on RESTful API versioning, I%u2019ve had the opportunity to think more about versioning in practice as I've been a part of designing the next major revision to the NuGet API (v3). This has been very helpful for a couple of reasons, but the most important one is that NuGet is a real application that has both non-trivial scale requirements and a number of different clients %u2013 many of which are not controlled by the NuGet core team. Going through this API design exercise has both validated some of my earlier thinking as well as revised some other thinking. The point of this post is to lay some of that out. ... (content of the article here) ... [So] I’ll add another principle (well, borrowed it from Fielding actually): all important resources must have URIs This ends up impacting versioning strategies as follows: • If you’re adding only, go ahead and just add it to the representation. Your clients should ignore what they don’t understand • If you’re making a breaking change to the representation or changing the meaning of the underlying resource, create a new resource with a new name (URI) • Use content negotiation in such a way that it can provide an optimized path to resources, but always give the client control (by way of links) to make different choices Link: http://codebetter.com/howarddierking/2013/09/12/versioning-restful-services… Opinions welcome. Best regards, Alan

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Slides about OCCI monitoring
by Augusto Ciuffoletti 21 Sep '13

21 Sep '13

Dear all, I will not be in Madrid next week, but I have prepared some slides that may be useful for those that want to know the content of the document about cloud monitoring that is currently under discussion. The slides start by giving the basic concepts, proceed with a description of the entities that implement the monitoring infrastructure, and conclude with a step by step definition of a non-trivial monitoring infrastructure. This is the link: http://www.slideshare.net/AugustoCiuffoletti/2013-03-occimonitoring-26159563 Comments are welcome, and I wish you a good time in Madrid. -- Augusto Ciuffoletti Dipartimento di Informatica Università di Pisa 56100 - Pisa (Italy)

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testdyso --> doyouspeakocci (and please join project)
by Sill, Alan 21 Sep '13

21 Sep '13

Hi all, I've redeployed Alexander's "Do You Speak OCCI?" tester at http://testdyso.appspot.com while we try to figure out why the old "doyouspeakocci" name seems no longer to be available to him or to anyone else. This is the same as the current source available at https://github.com/lxndrp/doyouspeakocci with only the application name changed. Using it in practice has shown that while it is still really useful, it could use some more robust error condition flagging and reporting, for example trapping when the remote server fails to return location headers or replies with deprecated "X-..." ones as in the example that we ran into today. It is also useful locally - just download it, change as needed and deploy in your own local GoogleAppEngine Launcher. That way you can look at the logs locally, even more useful than running it on the web. Feel free to join the project at the source link above, add yourself to the mailing list, etc. I will probably turn some students at TTU loose on it as a learning exercise once things get a little further along. Just remember that the application name on appspot has changed for now. Alan

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Reminder: OCCI bi-weekly conference call @ 4pm UTC, 12 EDT, 6 CEST
by Metsch, ThijsX 18 Sep '13

18 Sep '13

Hi all, Quick reminder for today's conference call where we'll be walking through the ongoing topics: https://plus.google.com/hangouts/_/calendar/dG1ldHNjaEBnbWFpbC5jb20.m5bt6ac… Talk to later today! Cheers, -Thijs ------------------------------------------------------------- Intel Ireland Limited (Branch) Collinstown Industrial Park, Leixlip, County Kildare, Ireland Registered Number: E902934 This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies.

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Fwd: Fwd: CloudPlugfest Dial-In & WebEx Details - Santa Clara
by Sill, Alan 16 Sep '13

16 Sep '13

NB as below. Alan Begin forwarded message: From: Mark Carlson <mark.carlson(a)oracle.com<mailto:mark.carlson@oracle.com>> Date: September 16, 2013, 3:57:19 PM GMT+02:00 To: "Sill, Alan" <alan.sill(a)ttu.edu<mailto:alan.sill@ttu.edu>> Subject: Re: [occi-wg] Fwd: CloudPlugfest Dial-In & WebEx Details - Santa Clara Alan, This is just for registered attendees.... -- mark On Sep 16, 2013, at 6:46 AM, "Sill, Alan" <alan.sill(a)ttu.edu<mailto:alan.sill@ttu.edu>> wrote: How to connect to the Cloud Interoperability Week activities in Santa Clara this week. They are working towards a CDMI + CIMI + OVF (and maybe CAMP) demo, similar to the ones we have done using OCCI. Connection details for the local OCCI WG session at OGF 39 and for the Madrid sessions (and whether those for these latter Cloud Plugfest sessions and workshop are the same or not) will be sent once we get the Madrid session folks together here. Alan Begin forwarded message: From: "Mancuso, Tom" <tom.mancuso(a)snia.org<mailto:tom.mancuso@snia.org>> Date: September 16, 2013, 3:37:51 PM GMT+02:00 To: "Mark. Carlson (mark.carlson(a)oracle.com<mailto:mark.carlson@oracle.com>)" <mark.carlson(a)oracle.com<mailto:mark.carlson@oracle.com>>, "dslik(a)netapp.com<mailto:dslik@netapp.com>" <dslik(a)netapp.com<mailto:dslik@netapp.com>> Cc: "planners(a)cloudplugfest.org<mailto:planners@cloudplugfest.org>" <planners(a)cloudplugfest.org<mailto:planners@cloudplugfest.org>>, "Meleedy, Michael" <michael.meleedy(a)snia.org<mailto:michael.meleedy@snia.org>>, "Jones, Arnold" <arnold.jones(a)snia.org<mailto:arnold.jones@snia.org>> Subject: Latest Reg List and CloudPlugfest Dial-In & WebEx Details - Santa Clara Wiki address: https://services.plugtests.net/wiki/2013-CloudWeek/ WebEx: (Meetings are set run for 8 hours/day as needed) http://snia.webex.com Topic: CloudPlugfest- Santa Clara Meeting number: 792 810 112 Meeting password: cloud2013 Host key: 529380 Teleconference: US Toll Free Access - 1-866-439-4480 US Toll Access - 1-212-786-7191 Spain Toll English - +34(0)917889871 Spain Toll Free English - 800099004 Participant PIN Code - 16651018# (or 87763154# to moderate) International Access Numbers & Control Codes: http://www.snia.org/international/support Tom Mancuso Senior Program Manager, SMI Storage Networking Industry Association _______________________________________ SNIA Mobile: 719.491.2614 tom.mancuso(a)snia.org<mailto:tom.mancuso@snia.org> www.snia.org<http://www.snia.org/> Follow SNIA: [twitter-128x128.png]<http://www.snia.org/about/socialmedia/twitter> [facebookf.png] <http://www.facebook.com/SNIA.ORG> [linkedin_256.png] <http://www.linkedin.com/company/snia> [blog.gif] <http://www.sniablog.org/> [video.gif] <http://www.snia.org/news_events/multimedia> <image001.png> <image002.png> <image003.png> <image004.png> <image005.png> _______________________________________________ occi-wg mailing list occi-wg(a)ogf.org<mailto:occi-wg@ogf.org> https://www.ogf.org/mailman/listinfo/occi-wg

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Fwd: CloudPlugfest Dial-In & WebEx Details - Santa Clara
by Sill, Alan 16 Sep '13

16 Sep '13

How to connect to the Cloud Interoperability Week activities in Santa Clara this week. They are working towards a CDMI + CIMI + OVF (and maybe CAMP) demo, similar to the ones we have done using OCCI. Connection details for the local OCCI WG session at OGF 39 and for the Madrid sessions (and whether those for these latter Cloud Plugfest sessions and workshop are the same or not) will be sent once we get the Madrid session folks together here. Alan Begin forwarded message: From: "Mancuso, Tom" <tom.mancuso(a)snia.org<mailto:tom.mancuso@snia.org>> Date: September 16, 2013, 3:37:51 PM GMT+02:00 To: "Mark. Carlson (mark.carlson(a)oracle.com<mailto:mark.carlson@oracle.com>)" <mark.carlson(a)oracle.com<mailto:mark.carlson@oracle.com>>, "dslik(a)netapp.com<mailto:dslik@netapp.com>" <dslik(a)netapp.com<mailto:dslik@netapp.com>> Cc: "planners(a)cloudplugfest.org<mailto:planners@cloudplugfest.org>" <planners(a)cloudplugfest.org<mailto:planners@cloudplugfest.org>>, "Meleedy, Michael" <michael.meleedy(a)snia.org<mailto:michael.meleedy@snia.org>>, "Jones, Arnold" <arnold.jones(a)snia.org<mailto:arnold.jones@snia.org>> Subject: Latest Reg List and CloudPlugfest Dial-In & WebEx Details - Santa Clara Wiki address: https://services.plugtests.net/wiki/2013-CloudWeek/ WebEx: (Meetings are set run for 8 hours/day as needed) http://snia.webex.com Topic: CloudPlugfest- Santa Clara Meeting number: 792 810 112 Meeting password: cloud2013 Host key: 529380 Teleconference: US Toll Free Access - 1-866-439-4480 US Toll Access - 1-212-786-7191 Spain Toll English - +34(0)917889871 Spain Toll Free English - 800099004 Participant PIN Code - 16651018# (or 87763154# to moderate) International Access Numbers & Control Codes: http://www.snia.org/international/support Tom Mancuso Senior Program Manager, SMI Storage Networking Industry Association _______________________________________ SNIA Mobile: 719.491.2614 tom.mancuso(a)snia.org<mailto:tom.mancuso@snia.org> www.snia.org<http://www.snia.org/> Follow SNIA: [twitter-128x128.png]<http://www.snia.org/about/socialmedia/twitter> [facebookf.png] <http://www.facebook.com/SNIA.ORG> [linkedin_256.png] <http://www.linkedin.com/company/snia> [blog.gif] <http://www.sniablog.org/> [video.gif] <http://www.snia.org/news_events/multimedia>

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OCCI on the First OpenNebula Conference (Countdown! - Closing Registration)
by Tino Vazquez 11 Sep '13

11 Sep '13

Dear OCCI members, As you may be aware, we are holding the first OpenNebula Conference [1] in Berlin, this 24-26 September. The conference is the perfect place to learn about practical Cloud Computing, aimed at cloud users, developers, executives and IT managers to help them tackle their computational and business challenges. The goal is to foster fruitful and educational discussions around Cloud Computing and OpenNebula. We think this is of special interests to OCCI users and developers, since OpenNebula is one of the reference implementations of the standard. Moreover, there is a dedicated talk to OCCI, by Boris Parak, that goes by the name of "rOCCI - Providing Interoperability through OCCI 1.1 Support for OpenNebula" [2]. Registration closing date is getting closer, so seize the moment and register now [3]! The conferences attendees will be in for a treat: * Keynotes speakers include Daniel Concepción from Produban – Bank Santander Group, Thomas Higon from Akamai, Steven Timm from FermiLab, André von Deetzen from Deutsche Post E-Post, Jordi Farrés from European Space Agency, Karanbir Singh from CentOS Project, and Ignacio M. Llorente and Rubén S. Montero from the OpenNebula Project. * The talks are organized in three tracks about user experiences and case studies, integration with other cloud tools, and interoperability and HPC clouds and include speakers from leading organizations like CloudWeavers, Terradue, NetWays, INRIA, BBC, inovex, AGS Group, Hedera, NetOpenServices, KTH, CESNET or CESCA. * The Hands-on Tutorial will show how to build, configure and operate your own OpenNebula cloud. * The Hacking and Open Space Sessions will provide an opportunity to discuss burning ideas, and meet face to face to discuss development. * The Lightning Talks will provide an opportunity to present new projects, products, features, integrations, experiences, use cases, collaboration invitations, quick tips or demonstrations. This session is an opportunity for ideas to get the attention they deserve. What's not to like? See you all at Berlin! The OpenNebula Team [1] http://opennebulaconf.com/ [2] http://opennebulaconf.com/schedule/track-ii-talk-8/ [3] http://opennebulaconf.com/registration/ -- Constantino Vázquez Blanco, PhD, MSc www.OpenNebula.org | @OpenNebula

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Final Call for Papers : Autonomic Clouds 2013, Dresden, Germany- Deadline September 10, 2013
by Sill, Alan 04 Sep '13

04 Sep '13

The 3rd International Workshop on Intelligent Techniques and Architectures for Autonomic Clouds (ITAAC 2013) http://www.derby.ac.uk/computing/itaac2013 In association with The 6th IEEE/ACM International Conference on Utility and Cloud Computing (UCC 2013), December 9-12, 2013, Dresden, Germany Call for Papers Autonomic computing refers to principles and techniques for designing, building, deploying and managing computing systems with minimal human involvement. An autonomic system should be capable of adapting its behaviour to suit its context of use through methods of self-management, self-tuning, self-configuration, self-diagnosis, and self-healing. Autonomic approaches are particularly suitable for use in Cloud Computing systems, where rapid scalability is required across a pool of resources to support various unpredictable demands, and where the system should automatically adapt to avoid failures in the underlying hardware impacting on the user experience. Autonomic Clouds emerge as a result of applying autonomic computing techniques to Cloud Computing, resulting into robust, fault tolerant and easy to manage and operate cloud architectures and deployments. The application of intelligent approaches to Autonomic Clouds is gaining prominence in research and industry. Such intelligent approaches include evolutionary techniques, multi-objective and combinational optimization heuristics, genetic algorithms, neural networks, swarm intelligence, and multi-agents systems. Application of these intelligent approaches to Clouds can improve how computing systems and applications are built, used, managed and optimized, maximizing the benefits for users, applications and systems by reducing the operational, maintenance and usage costs of clouds. The interplay of intelligent approaches and Clouds offers numerous challenges. The international workshop on Intelligent Techniques and Architectures for Autonomic Clouds (ITAAC 2013) aims to bring together researchers and practitioners across Cloud Computing, Intelligent Systems, and Autonomic Computing to discuss issues at the intersection of these disciplines. Key questions to be addressed include: How do emerging cloud architectures satisfy or contradict the vision of autonomic computing? How does the vision of autonomic computing satisfy the vision of self managing and self healing clouds? How do contemporary and emerging intelligent techniques support and enable both of these? Academics, researchers and practitioners are invited to submit original work on the theory and practice of intelligent and autonomic clouds. Key topics Topics of interest include (but are not limited to): * Theory and foundations of Intelligent Clouds * Quality of Service and Intelligent Clouds * (auto)scaling of Clouds * Self-organizing, self-healing and self-managing Cloud systems * Intelligent deployment, configuration and maintenance approaches for Clouds * Agent based techniques for Clouds * Adaptive and Evolutionary Approaches for Clouds * Intelligent Cloud Workflows, Planning and Scheduling * Intelligent Cloud Resource Management and Discovery in Clouds * Autonomic Clouds of Sensors * Intelligent Management and Monitoring for Clouds * Intelligent approaches to Cloud Service Level Agreement satisfaction * Applications, Toolkits and frameworks for Intelligent and Autonomic Clouds * Advances in Intelligent Data Analysis due to Clouds Submissions that offer position statements, theoretical and industrial perspectives, lessons learned, comparisons, evaluations and technical contributions to intelligent autonomic clouds are also welcome. Paper submission guidelines All papers must be submitted electronically and in PDF format. The material presented should be original and not published or under submission elsewhere. Authors should submit full papers of up to 6 pages, following strictly the IEEE Computer Society Proceedings Manuscript style<http://www.computer.org/portal/web/cscps/formatting>, using two-column, single-space format, with 10-point font size. Figures and references must be included in the 6 pages. At least one of the authors of each accepted paper must register early to attend the conference, in order for the paper to appear in the conference proceedings. Submitted papers must represent original unpublished research that is not currently under review for any other conference or journal. The proceedings will be published and will be made online through the IEEE Xplore. All papers should be submitted online using EasyChair submission system https://www.easychair.org/account/signin.cgi?conf=itaac2013 High quality articles will be invited to become part of the Journal of Cloud Computing Advances, Systems and Applications (JoCCASA) Workshop Chairs * Professor Nick Antonopoulos, University of Derby, UK Email: n.antonopoulos(a)derby.ac.uk<mailto:n.antonopoulos@derby.ac.uk> * Dr Ashiq Anjum , University of Derby, UK Email: a.anjum(a)derby.ac.uk<mailto:a.anjum@derby.ac.uk> * Dr Lee Gillam, University of Surrey, UK Email: l.gillam(a)surrey.ac.uk<mailto:l.gillam@surrey.ac.uk>. Programme Committee * Antonio Liotta, Eindhoven University of Technology, Netherlands * Manish Parashar, Rutgers, The State University of New Jersey, USA * Richard McClatchey, UWE Bristol, UK * Morris Riedel, Jülich Supercomputing Centre (JSC), Forschungszentrum Jülich, Germany * Omer Rana, Cardiff University, UK * Rajkumar Buyya, University of Melbourne, Australia * David Wallom, Oxford e-Research Centre, University of Oxford, UK * Jianxin Li, Beihang University, China * Kurt Stockinger, Zurich University of Applied Sciences, Switzerland * Adel Taweel, Kings College London, UK * Fatos Xhafa, Universitat Politècnica de Catalunya, Barcelona, Spain * Daniel S. Katz, Computation Institute, University of Chicago, USA * Ciprian Dobre, University Politehnica of Bucharest, Romania * Richard Hill, University of Derby, UK * Muhammad Atif, The Australian National University, Canberra, Australia * Lu Liu, University of Derby, UK * Peter Bloodsworth, National University of Sciences and Technology (NUST), Pakistan * Saad Liaquat Kiani, University of the West of England, Bristol, UK * Silvio Pardi, University of Naples, Naples, Italy * Zaheer Khan, University of the West of England, Bristol, UK * Liangmin Wang, Jiangsu University, China * Taimoor Khan, Johannes Kepler University, Austria Important Dates * Manuscript Submission Due: 10 September 2013 * Notification of Acceptance: 20 September 2013 * Final Manuscript Due: 27 September 2013 * Author Registration Due: 27 September 2013 * Conference Dates: 9 - 12 December 2013

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Reflecting on "The Great OpenStack API Debate" | EVault
by Sill, Alan 23 Aug '13

23 Aug '13

Thought you would be interested in the following link. It is time we got OCCI into the mix more in these discussions. Please participate. Topic: Reflecting on "The Great OpenStack API Debate" Link: http://www.evault.com/uncategorized/reflecting-on-the-great-openstack-api-d… Alan

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