benjamingolub.com - Latest Comments in Google App Engine + Memcached + FF To Go = Bliss

Re: Google App Engine + Memcached + FF To Go = Bliss

ericflo — Wed, 28 May 2008 20:40:17 -0000

Ahh I see--foot, meet mouth :) Still, it's cool stuff.

Re: Google App Engine + Memcached + FF To Go = Bliss

bgolub — Wed, 28 May 2008 20:36:51 -0000

It's a little trickier than that; because the user can also set the font size and the header contains a link to the user's friendfeed page. But yes; this is exactly what I do on RSSmeme (and as I'm sure you are aware it's how the Django cache middleware works). I cache the entire response (I also cache the results from the DB so hitting the html and then the API for the same data doesn't result in 2 DB requests). Since this runs on Google App Engine and the CPU is not a bottleneck at all I'm not worried about the time spent on the template system too much.

But thanks!

Re: Google App Engine + Memcached + FF To Go = Bliss

ericflo — Wed, 28 May 2008 20:30:40 -0000

Sorry, Disqus is not so great for code snippets :(

Re: Google App Engine + Memcached + FF To Go = Bliss

ericflo — Wed, 28 May 2008 20:30:10 -0000

I think you might be better off caching the entire response, as then subsequent requests don't even have to go through the template system, context processors, etc.

For example:

...
key = 'public_%i_%i_%s' % (num, start, service)
response = memcache.get(key)
if not response:
try:
data = f.fetch_public_feed(num=num, start=start, service=service)
except Exception, e:
return HttpResponseRedirect('/%s/' % e)
extra_context = {
'entries': data['entries'],
‘next’: start + num,
}
if start > 0:
extra_context['has_previous'] = True
extra_context['previous'] = start - num
response = render_to_response(’public.html’, extra_context, context_instance=RequestContext(request))
memcache.set(key, response, CACHE_TIME)
return response