id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	launchpad_bug
268	implement rest of Helper	warner	warner	"The upload-specific helper described in #116 is insufficient to achieve all
the properties we're hoping for. The helper as originally envisioned in that
ticket was specifically for uploading CHK files: it did not encompass
downloading files (since there's no bandwidth benefit for those), nor did it
include mutable files (since by our SDMF rules, these files are small and the
bandwidth of them isn't too much of a burden).

To prevent the clients from making connections to all storage servers, we
need a helper that will also mediate CHK downloads and mutable uploads and
downloads. I'm making a separate ticket for this since it's more work than
I'd originally realized. I think I can still get it done in the original
schedule.

Zooko and I have talked about the need or lack of need for this
connection-minimization. It may be the case that minimizing connections is
not all that important, at least with a reasonable number of clients. So it's
possible that we'll want the #116 upload-only helper to get us resumability
and 1x uploads, but not the all-purpose helper described in this ticket to
get us minimal connections and isolation between clients and storage servers.
"	enhancement	new	major	0.8.0 (Allmydata 3.0 Beta)	code-encoding	0.7.0