[Xastir] torrents and xastir

[Gerry Creager]

Curt, WE7U wrote:
> On Fri, 1 Aug 2008, Gerry Creager wrote:
> 
>> Imagine a site with a CONUS map (to start, and thinking small; we 
>> could scale up) where you can use a bounding box to identify your 
>> region of interest or cursor to select a particular point (map).  
>> After that selection you see an inventory of different maps and types 
>> of maps available, and you use a check-list to identify the ones you 
>> want.  The site prepares a separate page/Torrent stream to provide 
>> these, and the page is lightly persistent (days before it ages out) 
>> and indexed on a page of recent selections.
>>
>> You'd have the option of getting the data via download or Torrent at 
>> that point.  Simplified data delivery.
> 
> In this case you don't gain any advantages of the peer-to-peer
> distributed transfer.  You only gain the advantage of another method
> of server->client that may be easier to use at the client end.

We've seen, in another endeavor I work around, that if one person's 
interested in a dataset, someone else is likely interested.  So, 
creating that dataset, especially if it's big/bulky and takes some time, 
should happen as few times as possible.

> We'd need a server with the space for 100 DVD's worth of data for
> DRG's and another 100 for DOQQ's plus space for other types of maps,
> professionaly backed-up.  Also need a big pipe 'cuz non-Xastir
> people will find it too.

Not today, but in a week? Or does it have to be today?

> Now:  Imagine the same kind of a setup as you describe but have it
> auto-create the torrent files and keep them around, plus post them
> on a web site.  As maps get distributed from BIGSERVER over
> torrrent, the bandwidth required would go down over time assuming
> enough people became seeders.

I think you just said what I said.  or tried to say.

> Of course the reality is the server would become more popular over
> time, but the torrents might keep the total bandwidth used more
> under control.  Less of an exponential rise anyway.

correct
-- 
Gerry Creager -- gerry.creager at tamu.edu
Texas Mesonet -- AATLT, Texas A&M University
Cell: 979.229.5301 Office: 979.862.3982 FAX: 979.862.3983
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