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| META TOPICPARENT |
name="TonyLinde" |
VOSpace Brainstorm Meeting
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| | This is a set of notes made during a meeting to brainstorm ideas on VOSpace. Those present in the meeting were: |
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| | and on the following telecon: |
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| | Presentations
We pretty much made up the agenda as we went along but included a couple of MySpace presentations from AstroGrid people: |
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Notes
Dave's FileStore presn
- in Export: MIME type allowed for data conversion (eg FITS to jpeg)
- question of about how dumb is the VOStore
- contains metadata per item but does not interpret them
- but must do so to implement security
- MyDB vs MySpace:
- MySpace returns exact file put in
- MyDB will translate into database and back again
- so need to include flag that says 'store exactly'
- VOSpace vs VOStore
- Wil: implement only VOStore first
- AG: FileStore is dumb and FileManager has all intelligence (incl who owns items)
- coffee discussion
- need layer above FileStore to implement security
- VOBroker
- but AG could just plug this into its FileStore --> VOStore
Dave's FileManager presn
- do we want to introduce replica management into the spec at this stage
- for now, AG only implements http protocol for filestore
- but could implement other protocols
- need to define minimum set of protocols
- if http, need to ensure security
- need protocol negotiation
- minimum:
- SOAP with DIME attachment,
- HTTP
- VOSpace will support N protocols
- will address many underlying filestores
- client agent can state which protocol it wants to use
- VOSpace will only pass back stores which support that protocol
Guy's Security presn |
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- Wil: users don't care about how security is implemented
- Guy: implementers of VOStores will
- SAML as language for tickets?
- issue of which tickets are needed for an activity
- requires policy store/check
- look at Shibboleth / PERMIS
Later discussion
- decided we do not need to standardise on VOSpace for now, just VOStore (see Agreements below)
Telecon |
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Arguments
- whether we need transformation (RESOLVED with VOStore capabilities)
- mandatory if you are putting from file to database
- metadata must indicate capabilities of store
Agreements |
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- still only need VOSpace and VOStore protocol levels
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- still only need VOSpace and VOStore layers
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- VOStore is higher level than AG FileStore
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- do not need VOSpace protocol at this point
- just need common definition of VOStore
- includes list method
- includes callback api (to know when asynch action finished)
- projects implement own VOSpace
- will look to standardise afterwards
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- VOStore will advertise its capabilities
- eg ability to return data in given format
- AG filestore (currently) will only return in format uploaded
- AG will extend filestore to support VOStore
- MyDB will allow return in VOTable, CSV, FITS
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- ticket-based security looks like way to go
- subject to trial (see below)
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Action list |
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- Dave: update VOStore doc with new methods
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- Wil: send Dave latest version of VOStore: end of this week
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- Dave: update VOStore doc with new methods: before May Interop
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- Guy/Wil: get prototype security mechanism working: before May Interop
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| META FILEATTACHMENT |
attr="h" comment="" date="1110192584" name="FileManager.html" path="FileManager.html" size="10150" user="TonyLinde" version="1.1" |
| META FILEATTACHMENT |
attr="h" comment="" date="1110192622" name="FileStore.html" path="FileStore.html" size="9049" user="TonyLinde" version="1.1" |
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| META FILEATTACHMENT |
attr="" comment="" date="1110202783" name="vospace-security.ppt" path="vospace-security.ppt" size="69632" user="GuyRixon" version="1.1" |
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| META FILEATTACHMENT |
attr="h" comment="" date="1110202783" name="vospace-security.ppt" path="vospace-security.ppt" size="69632" user="GuyRixon" version="1.1" |
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| META FILEATTACHMENT |
attr="h" comment="" date="1110203150" name="vospace-security.pdf" path="vospace-security.pdf" size="52563" user="TonyLinde" version="1.1" |
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