Maybe you should look at this issue :
http://code.google.com/p/googleappengine/issues/detail?id=732

FYI : it is useless to add "no-cache" to the response (ie.
self.headers['Cache-Control'] = 'no-cache')
because it is done by default.

Regards

On 24 sep, 10:59, djidjadji <[EMAIL PROTECTED]> wrote:
> Hi Tony,
>
> after a few other observations I think the Firefox cache is doing
> things different then I suspect. Now I have added a 'no-cache' to the
> response for the HTML pages.
> I will see if the problem is solved. The images are still cached.
>
> Djidjadji
>
> 2008/9/23 Tony Arkles <[EMAIL PROTECTED]>:
>
>
>
> > It should be distributed.  Could you post some code that exhibits the
> > behaviour you're describing?
>
> > On Sep 22, 6:04 pm, djidjadji <[EMAIL PROTECTED]> wrote:
> >> To speed up the response for most queries I use memchache to store
> >> part of the generated html.
> >> When the objects change that are used for this memcache entry I call
> >> memcache.delete(key) then
> >> I redirect myself to the page that will generate the memcache content
> >> for this key.
>
> >> What I see is that sometimes the new page contains the modifications,
> >> memcache(key) is updated.
> >> In the other cases I see the old content. Then I wait a while and do a
> >> second reload
> >> and then I see the new content. I don't think it is a browser cache
> >> issue because there are cases
> >> where the updated content is show when I redirect.
> >> If the redirect is serviced by the same host I can assume the memcache
> >> item is deleted.
> >> But if the redirect request is serviced by another host or another
> >> datacenter is the item then also deleted?
>
> >> The manual and a few post in this group memtion that mecache inc() and
> >> dec() an integer value atomically in the memcache.
> >> This would suggest that ALL instances of my application see the same
> >> memcache items.
>
> >> My question?
>
> >> Is there one (1) memcache as observed by the programmer?
> >> Does it take time to distribute the delete (or inc or dec) operation
> >> across the datacenters?
> >> Or is the memcache separate for every host or every datacenter?
>
> >> All the examples that use mecache that I I have seen use it for
> >> keeping score of a total with a timeout of around 60 min.
> >> Not a problem if it is not the exact number (of people online, of
> >> messages posted today...)
> >> I have a timeout value of around 3600 (60min), large time between 
> >> mutations.
>
> >> djidjadji
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