Re: HAIL volunteer Rick Peralta

[Jeff Garzik <jeff@garzik.org>]

Pete Zaitcev wrote:
> On Wed, 29 Jul 2009 13:59:28 -0400, Jeff Garzik <jeff@garzik.org> wrote:
> 
>> My point was more that there are real world situations where multiple 
>> outgoing streams from the client is significantly slower than a single 
>> stream into the cloud, plus asking the cloud to perform further copies.
> 
> We aren't exposing Chunk to clients outside the cloud, at least at present.
> Let's wait and see if applications exist that require it, and how they
> compete, say, with a bunch of NFS servers. The biggest difference about
> Chunk is its ability to plug into CLD. Drop that and it's not that
> special. But you can only use CLD if you are inside the cloud; in fact
> it works best when you're inside the same data center with the CLD cell.
> So I don't see the bandwidth argument having much weight.
> 
> I'm going to remember Fabian's idea of 3-rd party transfers, of course.
> That potentially offers a significant reduction of load on tabled.
> But mythical outside clients of Chunk are yet to be demostrated.

Note that "mythical outside clients" is a key design element in NFS 
v4.1, which is a parallel distributed filesystem technology.  chunkd 
clients are quite a bit different from CLD clients.

Similarly, Hadoop DFS, CloudStore and GoogleFS clients [analagously] 
talk directly to chunkd rather than going through tabled.

	Jeff