[AG-DEV] Bridge Registry information via a text file

[Andrew Sharpe]

Hi Jason,

I believe this capability already exists.  I've successfully used a 
local bridge registry file using a file:// url because I was behind an 
authenticated proxy and the python version I was using didn't support 
authenticated proxies.

HTH, Andrew

Jason Bell wrote:
> G'day Ben
>
> Thanks for your email....  My comment wasn't about forcing users to use
> one bridge....  It was more the comment that if, for whatever reason, a
> user cannot access the URL directly to get to the "bridge registry",
> then no bridges are listed.
>
> The use of vv3.mcs.anl.gov:8030 is just an example.  
>
> What would be nice is if you can associate "vv3.mcs.anl.gov:8030" or
> "sam.ag.manchester.ac.uk:8030" directly without having to access a
> remote webpage to obtain this information.
>
> The reason why this is important and is some locations pass port 80
> (http) through a proxy, whereas they can directly access port 8030.
>
> It has come to my attention that you could probably use something like
> file:///C:/mydir/peers.txt with those addresses and it should work,
> though I need to try it.  Unfortunately this isn't obvious.
>
> Anyway, instead of pointing to a external web URL, it would be nice to
> be able to directly point to a local file.
>
> I hope this clarifies my request.
>
> Cheers,
> Jason.
>
> -----Original Message-----
> From: Ben Green [mailto:Ben.Green at manchester.ac.uk] 
> Sent: Monday, 29 October 2007 8:50 PM
> To: Jason Bell; ag-dev at mcs.anl.gov
> Subject: RE: [AG-DEV] Bridge Registry information via a text file
>
> Hi Jason,
>
> The reason we get UK users to point their clients at our own registry
> peers file is so that they connect to our bridge registry first.
>
> It reads as follows:
>
> sam.ag.manchester.ac.uk:8030
> fraser.ag.manchester.ac.uk:8030
> vv3.mcs.anl.gov:8030
>
> So our peers.txt file is *not* the same as the default registry address.
> The whole point is that it guarantees users will always have a working
> bridge registry in the unlikely event of the ANL bridge registry going
> down.
>
> The other reason we do this is that the current client can only display
> about 10 bridges and because the default ANL registry lists more than
> this, the client would sometimes omit the AGSC bridges. Our bridge
> registry only contains a small number of bridges, so they will always be
> displayed.
>
> But I think client v3.1 overcomes these issues....
>
> Cheers, Ben. 
>
> |=============================|
> | Ben Green                   |
> | Access Grid Support Centre  |      
> | Room G49-H                  |
> | Research Computing Services |
> | Kilburn Building            |
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> | Oxford Road                 |
> | Manchester                  |
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> |-----------------------------|
> | Tel. 0161 306 6621          |
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> | ben.green at manchester.ac.uk  |
> | http://www.agsc.ja.net      |
> |=============================| 
> -----Original Message-----
> From: owner-ag-dev at mcs.anl.gov [mailto:owner-ag-dev at mcs.anl.gov] On
> Behalf Of Jason Bell
> Sent: 29 October 2007 06:42
> To: ag-dev at mcs.anl.gov
> Subject: [AG-DEV] Bridge Registry information via a text file
>
> G'day all
>
> I'm not sure if I should submit this as a feature request or not... (Let
> me know and I will submit it to bugzilla)
>
> There are some AG's around the place that have problems connecting to
> Bridge Registries, thereby not getting a list of unicast bridges.
>
> As a workaround, they run their own webserver that contains a peers.txt
> file that points to the same information as the default registry address
> (Example vv3.mcs.anl.gov:8030).   Would it be possible to include adding
> a bridge registry using a text file, rather than a URL only???
>
> As I know this "work around" overcomes some of the proxy issues.
>
> I'm hoping someone could implement this.
>
> Cheers,
> Jason.
>
> --------------------------------------------
> Jason Bell, B.I.T.
>
> B. Info. Tech. (Honours) Student
>
> High Performance Computing Support Officer,
> Network Engineer
> Information Technology Division
> Central Queensland University
>
> E-mail : j.bell at cqu.edu.au
> Phone : 07 4930 9229
> --------------------------------------------
> Patience is a virtue.
>
> But if I wanted Patience,
> I would have become a Doctor.
> --------------------------------------------
>
>
>