[mythtvnz] HVR-1200 and EPG...

[Nick Rout]

On Thu, Dec 17, 2009 at 1:34 PM, Steve Hodge <stevehodge at gmail.com> wrote:
> On Thu, Dec 17, 2009 at 1:15 PM, Jonathan Hoskin <jonathan.hoskin at gmail.com>
> wrote:
>>>
>>> > Is there any way to cache the downloaded program data, rather than
>>> > re-downloading it each time, even if it hasn't changed? I noticed the
>>> > --cache option in the help, but how do I use that with myth?
>>>
>>> Yeah unfortunately you can't currently. I implemented the cache
>>> functionality as per the XMLTV spec but I don't think much uses it
>>> currently.
>>
>> How about dropping a Squid in front of the requesting machine to cache the
>> response from Had's server? And then use a time-appropriate refresh_pattern
>> directive for the URL in the Squid conf?
>> I have an almost default deploy of Squid on a Ubuntu 9.10 server on my LAN
>> and caching of the nice.net.nz xml just works.
>
> I don't think caching the entire file is what  Robert's looking for. The
> issue is that on any given day 80% of the file is likely to be unchanged
> (assuming it contains approx. 5 days of data - only the newest day of
> programs will be different). A squid setup is still going to download the
> whole file each day, rather than just the 20% that's new.

Gee its a whole 1.2MB. Not going to break anyones bandwidth limit
(except perhaps the server if its on a residential connection).

Changes can appear anywhere in the data, not just the most recent days.