Re: AW: AW: [geclipse-dev] InfoView

[George Tsouloupas <georget@xxxxxxxxxxxx>]

On Wed, 2007-04-18 at 01:06 +0200, Ariel Garcia wrote:
> Hi all,
> 
> > For example how do we see the following fitting into  a Globus, or a
> > Unicore infrastructure?
> >
> > > - IJobSubmissionService
> > > - IReplicaService
> > > - IFileTransferService
> 
> some comments:
> 
> - i think there is no risk with IJobSubmissionService, the same 
> funcionality is available in any middleware
> 
> - IReplicaService : it would be perhaps to name that interface
> IFileCatalogService, it is more explicit and clear what it is. Currently 
> Unicore (at least v.5) does not have such a thing, Globus always had (GT2) 
> a Replica Location Server... but i don't know the current status in GT4. 
> This one is quite intuitive and generic anyways, so i don't see a big risk 
> there.
I agree.

> 
> - IFileTransferService : here we should be more careful, gLite has a 
> FileTransferServ(ice/er) which is actually much more sophisticated than 
> the ReliableFileTransfer service in Globus4.
> The GT4's RFT is a kind of reliablility layer over gridftp insuring that 
> the tranfers are actually conducted to an end.
> The glite's FTS on the other hand is actually a Broker for file transfers 
> across network 'channels' (ie, point-to-point) between different sites 
> (which could have several Storage elements). Channels are _predefined_ (by 
> the FTS admin) between sites, although ther could be "star" channels which 
> allow to transfer from a fixed site to any other.
> Those channels allow a lot of control, max. bandwith, max number of 
> transfers, can be stopped, restarted, etc.
> Important is: you can't connect to a FTS in site A  and ask it to tranfer 
> from Site B to Site C.  If site B or C don't have an FTS server (with a 
> star channel) you will have to do the copy between the SE's yourself.

These kind of services are listed in my previous message regarding the
services available on the Information System. 
So I guess we do need to collect information about these services?

thanks,
George Tsouloupas