Re: [google-appengine] 6470ms for a memcache get and write out the result?
you are right and i will do it but this is not what is causing that huge delay
in the response.
On Oct 15, 2011, at 6:01 AM, djidjadji wrote:
>>page = CachedObject.all(keys_only=True).filter('appversion =',
>> appversion) \
>> .filter('uri =', uri).get()
>>if page:
>>p = db.get(str(page))
>>self.write(p.html)
>>memcache.set(cachekey, p.html,
>> namespace='cachedpage|%s'%appversion)
>>return
>>else:
>
> Why do you first check to see if the datastore object exist
> (keys_only=True) and then fetch if key is found. This adds an extra
> RPC roundtrip.
> Just fetch the object and test page for None
>
>page = CachedObject.all().filter('appversion =', appversion) \
> .filter('uri =', uri).get()
>if page:
>self.write(p.html)
>memcache.set(cachekey, p.html,
> namespace='cachedpage|%s'%appversion)
>return
>else:
>
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Re: [google-appengine] 6470ms for a memcache get and write out the result?
> page = CachedObject.all(keys_only=True).filter('appversion =',
> appversion) \
> .filter('uri =', uri).get()
> if page:
> p = db.get(str(page))
> self.write(p.html)
> memcache.set(cachekey, p.html,
> namespace='cachedpage|%s'%appversion)
> return
> else:
Why do you first check to see if the datastore object exist
(keys_only=True) and then fetch if key is found. This adds an extra
RPC roundtrip.
Just fetch the object and test page for None
page = CachedObject.all().filter('appversion =', appversion) \
.filter('uri =', uri).get()
if page:
self.write(p.html)
memcache.set(cachekey, p.html,
namespace='cachedpage|%s'%appversion)
return
else:
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[google-appengine] 6470ms for a memcache get and write out the result?
hi,
im having serious speed issues on a site.
my app is a python app and im using torndadoweb to serve requests.
the actual rendered html is also store in the datastore and memcache.
a decorator on the GET request checks first if there is a memcache entry if it
exists it writes the html out,
if there is no memcache entry it tries to get it from the datastore and only if
that doesnt exist too it executes the handler.
what i noticed is that the simple get from the memcache until the page displays
on the browser takes way too long and i actually dont understand how this is
possible.
here is my stats result:
what is actually taking 6seconds here
my decorator looks like this:
def cache_page(with_keywords=False, keywords=None):
def decorator(method):
def wrapper(self, *args, **kwargs):
uri = self.request.uri.strip()
cachekey = '%s|%s' %(appversion, uri)
cached = memcache.get(cachekey,
namespace='cachedpage|%s'%appversion)
if cached:
self.write(cached)
return
page = CachedObject.all(keys_only=True).filter('appversion =',
appversion) \
.filter('uri =', uri).get()
if page:
p = db.get(str(page))
self.write(p.html)
memcache.set(cachekey, p.html,
namespace='cachedpage|%s'%appversion)
return
else:
...
return method(self, *args, **kwargs)
return wrapper
return decorator
this shouldnt take that long right?
any thoughts?
thank you<>--
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