On Sat, Mar 24, 2012 at 06:07:45PM -0700, James Peach wrote:
> On Mar 24, 2012, at 12:06 AM, Jack Bates <6ny...@nottheoilrig.com> wrote:
> > On 22/03/12 10:08 PM, James Peach wrote:
> >> On 22/03/2012, at 4:19 AM, Jack Bates wrote:
> >>> On 10/03/12 08:43 PM, Jack Bates wrote:
> >>>> What can sites like this do to help intermediate proxies like Apache
> >>>> Traffic Server make cache hits from requests for the same content from
> >>>> different mirrors?
> >>>>
> >>>> Are there any best practices?
> >>>
> >>> Has there ever been any discussion or work on supporting RFC 6249 [1] or
> >>> "Metalink" [2] in Apache Traffic Server?
> >>
> >> No I don't think so.
> >>
> >>> I found this [3] mention of Metalink and intermediate caching proxies
> >>> ("Metalink integration with Proxy/Cache" heading)
> >>
> >> That sounds like a pretty useful project. There's probably a number of
> >> different ways a plugin could implement this. Folks on the dev list or
> >> #traffic-server would be happy to help.
> >>
> >>> [1] http://tools.ietf.org/html/rfc6249
> >>> [2] http://metalinker.org/
> >>> [3] http://sourceforge.net/apps/trac/metalinks/wiki/GsocIdeas
> >
> > Thank you very much James, I am replying to the dev list
> >
> > Perhaps a minimum viable product could:
> >
> > 1. If the response status code is 3XX
> > 2. Scan RFC 6249 "Link: <...>; rel=duplicate" headers for URL that already
> > exist in cache
> > 3. If found, update "Location: ..." header with this URL and pass on
> > response
>
> That sounds like a promising approach.
>
> > It could also check for an RFC 3230 "Digest: ..." header and, if found,
> > check for content with same digest already in cache?
>
> I think there was some conversation on IRC indicating that doing cage lookups
> by hash would require a fair amount of change to the cache.
>
> > Could this behavior be achieved with any of the existing "remap" plugins?
>
> I don't think so, but I don't have much experience with them. It might be
> worth poking around the trafficserver-plugins repository to see whether
> there's anything similar ...
Since the Metalink project is accepted to the Google Summer of Code this year,
maybe I can work on a Metalink Traffic Server plugin, and participate in GSoC?
No one in the Metalink project is familiar with Traffic Server: Are any Traffic
Server project members interested in mentoring work on a Metalink plugin?
I am from Vancouver in Canada but am volunteering here in Rwanda for a year. My
open source experience includes maintiaing a couple packages in Debian. Once
upon a time I contributed to the Gallery web photo album project: I
successfully contributed a WebDAV module. I contributed some small patches to
Asterisk, the Python OpenID library, the Android Open Source Project
I am new to Traffic Server code, but there are other plugins to study and the
scope of a Metalink plugin is modest
