September 2010 - occi-wg

Link Header rendering page update
by Ralf Nyren 06 Sep '10

06 Sep '10

Hi, I have update the Link page [1] to include a description of the important distinction between the Link base type and the Link Header. Have also added an example of Link Header rendering of Actions. Open issues: The use of Link Headers in Client POST/PUT requests to a Resource. regards, Ralf [1] http://forge.ogf.org/sf/wiki/do/viewPage/projects.occi-wg/wiki/Link

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Updated SDC HoLD exercises document
by Kleiman, Greg 03 Sep '10

03 Sep '10

Attached is the updated HoLD exercises document from our call today. I captured the action items on the last page as well as below in this email. 1. Mark to provide screen shots for Exercises #1 and make sure this section is consistent with his slides 2. Hope will send out the XAM treasure hunt Sept. 3 to the google group and everyone should comment on that before our next Sept. 9 10am PT meeting 3. Rich will write up the iPAD client instructions and send them out to the Google group before Sept. 9 4. Scott will create some instructions for the Flash exercises and send them to the the Google group before Sept. 9 5. Hope will review slides for Michael's Java FX client session and then determine if need additional text before Sept. 9 6. Can someone confirm that we will have wireless internet access in the room? Marty? 7. Hope will prep the memory stick master with the CDMI spec, Ref Implementation, and exercise tools including netbeans, flash, anything else for exercises. Final content for the memory stick is due 9/15. 8. Hope will confirm the deadline with Christine for printed materials 9. Mark, Rich, David, Scott, and Michael will be physically in the HoLD room to assist people with the exercises. 10. Marty - Can you please confirm the laptops from Dell are available and will be shipped and set up during the break just before Mark's SDC session Monday afternoon? Please respond to the google group with your action items before our next call on Sept. 9 because we need to finalize things then to meet the SDC deadlines. Thanks, Greg

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[cloudtwg] Groups - SDC CDMI HoL Meeting Agenda modified
by Mr. Mark Carlson 02 Sep '10

02 Sep '10

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Update of Link Header Rendering
by Ralf Nyren 02 Sep '10

02 Sep '10

I have updated the Link wiki page [1] with the latest proposal on Link Header rendering with respect to the latest Core Model. The proposal is based on the latest discussions. Comments welcome. regards, Ralf [1] http://forge.ogf.org/sf/wiki/do/viewPage/projects.occi-wg/wiki/Link

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Re: [occi-wg] Link specification
by Csom Gyula 02 Sep '10

02 Sep '10

Hi, some notes: [1] action on resource delete The working draft specifies the behaviour of deleting links (ie. "An OCCI server MUST NOT delete the associated Resources upon receiving a client DELETE request for a Link."). It's counter part should be also defined, ie. the behaviour of deletion of associated resources. Should the server automatically delete links, as well (CASCADE DELETE behaviour)? Or should it prevent from deleting a resource, if there's a link pointing to it? Or should it be configurable either per link instance or link type? [2] reverse links It might be useful to provide a so called 'reverse link' service, too. Ie. one should be able to query the links that points to a specific resource. Or formally: reverse_links(r) := {link | link.target = r}. In order to? Well, querying reverse links is a common task. For instance: to see what computes belong to a given network... Why... since someone can list all links then filter out the unwanted ones? Within a large system this could be a slow and resource-intensive operation. Meanwhile the cloud system could work from its internal index to filter the necessarry links which is much more faster. This might be modeled as either a new attribute (ie. adding reverse_links to Resource or kinda) or as a special query service (GET /reverse_links/$resource_id HTTP/1.0 or such). [3] built in link types The working draft enables subtyping links: "An OCCI server MAY enforce additional attributes at creation time if the link has been subtyped using additional categories." Sample from the wiki: Category: link; scheme="http://schemas.ogf.org/occi/core#", disk_drive; scheme="http://example.com/occi/link#" Attribute: occi.link.source="/compute/vm01", occi.link.target="/storage/disk03", com.example.drive.interface="ide" I guess built in link categories should be defined for the Infrastructure model (ie. disk, nic and maybe console):) This topic relates to the following one as well: [4] link extensions? It is not clear whether someone could use her own, specific links. The category spec states: "Categories schemes can be extended by providers and users by defining there own (with different mutability) scheme. Those MUST be in a different namespace then those described in the OCCI specification." Hence someone can introduce new Categories within new schemes. But can she introduce new categories within the builtin OCCI namespaces? In order to use user defined links this is mandatory since domain specific links are specified by categories of Link type: "A set of associated attributes defined by the categories of the Link type." Cheers, Gyula ________________________________________ Feladó: Csom Gyula Küldve: 2010. szeptember 1. 17:35 Címzett: Edmonds, AndrewX; occi-wg(a)ogf.org Tárgy: RE: Link specification Have just ran through the wiki page, though need more time to understand the details:) one basic question came into my mind. In most use cases 'bilateral' links are enough ________________________________________ Feladó: occi-wg-bounces(a)ogf.org [occi-wg-bounces(a)ogf.org] ; meghatalmazó: Edmonds, AndrewX [andrewx.edmonds(a)intel.com] Küldve: 2010. szeptember 1. 17:01 Címzett: occi-wg(a)ogf.org Tárgy: [occi-wg] Link specification Just a reminder - from our confcall today, the deadline for any further changes that will impact significantly the link specification [1] is next Wednesday August 8th. Get reading! :-) Andy [1] http://forge.ogf.org/sf/wiki/do/viewPage/projects.occi-wg/wiki/Link

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Action items from concall...
by Thijs Metsch 01 Sep '10

01 Sep '10

Hi, We need to get the Link stuff fixed - so deadline for any comments is next Wednesday. Have a look at the Wiki for the current writings. If possible we want to discuss the network section of the specification on next week's concall. Proposals and input like the document Gyula wrote are more than welcome. To remind you all: We are trying to have the next revision of the specification done by OGF 30 - So by end of September we need to have all technical stuff fixes so we can focus und editorial stuff. Thanks to everybody for contributing and making this happen! Cheers, -Thijs -- Thijs Metsch Senior Software Engineer Grid and Cloud Technology Platform Computing GmbH Europaring 60 D-40878 Ratingen http://www.platform.com http://www.nohuddleoffense.de/ - http://www.twitter.com/befreax

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Link specification
by Edmonds, AndrewX 01 Sep '10

01 Sep '10

Just a reminder - from our confcall today, the deadline for any further changes that will impact significantly the link specification [1] is next Wednesday August 8th. Get reading! :-) Andy [1] http://forge.ogf.org/sf/wiki/do/viewPage/projects.occi-wg/wiki/Link ------------------------------------------------------------- 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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Reminder: concall today at 10am EDT, 4pm CET, 3pm BST
by Thijs Metsch 01 Sep '10

01 Sep '10

Hi, Just a quick reminder for our concall today! See the enclosed details to see how you can join! Topic for today is the discussion of the current revision in the wiki (including the changes made): http://forge.ogf.org/sf/wiki/do/viewPage/projects.occi-wg/wiki/CoreAndModels http://forge.ogf.org/sf/wiki/do/viewPage/projects.occi-wg/wiki/HTTPHeaderRe… http://forge.ogf.org/sf/wiki/do/viewPage/projects.occi-wg/wiki/Infrastructu… Hope to talk to you soon! Cheers, -Thijs ------------------------------------------------------- To join the online meeting (Now from the Apple iPhone (R) and other smartphones!) ------------------------------------------------------- 1. Go to https://cisco.webex.com/ciscosales/j.php?ED=145498192&UID=1365030827&PW=NM2… 2. Enter your name and email address. 3. Enter the meeting password: 1234 4. Click "Join Now". To view in other time zones or languages, please click the link: https://cisco.webex.com/ciscosales/j.php?ED=145498192&UID=1365030827&PW=NM2… ---------------------------------------------------------------- ALERT:Toll-Free Dial Restrictions for (408) and (919) Area Codes ---------------------------------------------------------------- The affected toll free numbers are: (866) 432-9903 for the San Jose/Milpitas area and (866) 349-3520 for the RTP area. Please dial the local access number for your area from the list below: - San Jose/Milpitas (408) area: 525-6800 - RTP (919) area: 392-3330 ------------------------------------------------------- To join the teleconference only ------------------------------------------------------- 1. Dial into Cisco WebEx (view all Global Access Numbers at http://cisco.com/en/US/about/doing_business/conferencing/index.html 2. Follow the prompts to enter the Meeting Number (listed above) or Access Code followed by the # sign. San Jose, CA: +1.408.525.6800 RTP: +1.919.392.3330 US/Canada: +1.866.432.9903 United Kingdom: +44.20.8824.0117 India: +91.80.4350.1111 Germany: +49.619.6773.9002 Japan: +81.3.5763.9394 China: +86.10.8515.5666

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Reminder: concall today at 10am EDT, 4pm CET, 3pm BST
by Thijs Metsch 01 Sep '10

01 Sep '10

Hi, Quick reminder for today's call - we'll try to fix the examples in the Wiki... Bridge details (sponsored by Cisco) can be found here: http://forge.ogf.org/sf/wiki/do/viewPage/projects.occi-wg/wiki/Teleconferen… Talk to you soon, -Thijs -- Thijs Metsch Senior Software Engineer Grid and Cloud Technology Platform Computing GmbH Europaring 60 D-40878 Ratingen http://www.platform.com http://www.nohuddleoffense.de/ - http://www.twitter.com/befreax

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