.

longs/views.py

@@ -993,16 +993,16 @@ def question_json(request, pk):
     #if not exam.active:
     #    raise Http404("No available exam")
 
-    question_json_cache = cache.get("{}_question_json_{}".format("longs", pk))
+    path= "{0}longs/questions/{1}.json".format(settings.MEDIA_ROOT, question_id)
+    url= "{0}{1}/exam/{2}.json".format(settings.MEDIA_URL, self.app_name, pk)
+
+    if os.path.isfile(path) and not exam.recreate_json:
 
     if question_json_cache is not None and not question.recreate_json:
-        #question_json_cache["cached"] = True
-        return redirect(question_json_cache)
+        return redirect(url)
 
     question_json = question.get_json(pk)
 
-    cache.set("{}_question_json_{}".format("longs", pk), question_json, 3600)
-
     question.recreate_json = False
     question.save()