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Experiment Workflow using Sface and Raven

Experiment Workflow using Sface and Raven. Andy Bavier, PlanetWorks Scott Baker, SB-Software July 27, 2011. What is Sface ?. A new tool available to GENI researchers for managing experiments Standalone desktop application, r uns on Linux and Mac OS X

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Experiment Workflow using Sface and Raven

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  1. Experiment Workflow using Sfaceand Raven Andy Bavier, PlanetWorks Scott Baker, SB-Software July 27, 2011

  2. What is Sface? • A new tool available to GENI researchers for managing experiments • Standalone desktop application, runs on Linux and Mac OS X • Works with any aggregate that supports the GENI AM API and uses GENI RSpecs • “Plugin” architecture makes it easy to add new management and monitoring services • Example: Raven package management service

  3. Goals of this Tutorial • Use Sface to: • Discover available resources • Add and remove resources from a slice • Use Raven to: • Package an experiment • Deploy it into a slice • Monitor the experiment

  4. Terminology • Slice • A network of communication and computing resources capable of running an experiment or a wide-area network service • Component • On PlanetLab, an edge computer (a “node”) • Sliver • A virtual machine running on a component • Aggregate • A group of components (e.g., a testbed) http://groups.geni.net/geni/wiki/GeniGlossary

  5. Getting Started • Guest1-30 accounts on PlanetLab • Password: geni • Login to the account assigned to you • Run “sface”

  6. Configuration • Installing Sface (we’ve done this for you) • Download packages, dependencies • Put private key in ~/.sfi/ • On Configuration screen • User HRN: plc.gec11.guestXX • Slice HRN: plc.gec11.sliceXX • User’s authority HRN: plc.gec11 • Click “Apply & Save”

  7. Discover Resources • Go to Main Window • Click “Update Slice Data” • Wait ~1 minute • See a list of aggregates with summaries • Expand to list all of the aggregate’s nodes • Some nodes may not be working… • At this point, the slice should not have slivers running on any nodes

  8. Add Slice Resources • Generate and submit request for resources • Double-click on a node to add it to the slice • Requests a sliver on that node • Type a string in the search box to only show nodes containing that string • E.g., “princeton” • Pick a few nodes from PLC, PLE, and/or VINI and click “Submit”

  9. Remove Slice Resources • Double-click on a blue node to remove it from the slice • Now, remove all nodes from your slice • Click “Submit” • Should see empty summaries

  10. Slice Tags • Add PlanetLab-specific tags to slivers • Right-click on “Default tags for XYZ” to add attribute to all slivers on aggregate XYZ • Right-click on a node to add attribute to the corresponding sliver • Choose attribute from pull-down, type value • Add “initscript” attribute with value “stork” to all PLC nodes • Downloads and runs the “stork” script when the VM starts

  11. Set up for Raven Tutorial • Default tag on PLC: initscript/stork • Add ~20 PLC nodes to your slice • Click “Submit” • Verify that nodes, tag were added to slice • Now… wait 15 minutes for slivers to be created

  12. Sface Info • Wiki page (with download links): • http://svn.planet-lab.org/wiki/SfaceGuide • Google Group: • http://groups.google.com/group/sface-users/

  13. At end of tutorial • Goal: each slice has 20-30 working nodes for the Gush tutorial next…

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