You should still be billed for bandwidth. The advantage of using edge caching is that if the resource is being served from the datastore or dynamically generated via some other means, you will not incur CPU costs.
On Thu, Jun 3, 2010 at 12:55 PM, Ross M Karchner <[email protected]>wrote: > Partially off-topic--- if GFE serves a cached resource, do we get billed > for the bandwidth? > > > On Wed, Jun 2, 2010 at 3:27 PM, Ikai L (Google) <[email protected]> wrote: > >> Okay, looks like the Google Front-End is kicking in to cache your stuff >> >> Server Google Frontend >> Content-Length 2834 >> Age 41 >> Cache-Control public, max-age=600 >> >> Are you guys setting this header anywhere? Unfortunately, there's no way >> to invalidate items in the frontend cache, so you'll have to use a cache >> buster or wait for the TTL to expire. >> >> On Wed, Jun 2, 2010 at 12:22 PM, J <[email protected]> wrote: >> >>> That's interesting, Rafael. I wonder why it serves correctly for you. >>> >>> They are still different from my PoV. >>> >>> The bad side headers: >>> Etag "74EQOA" >>> Date Tue, 01 Jun 2010 18:12:57 GMT >>> Expires Sat, 05 Jun 2010 02:12:57 GMT >>> Content-Type text/css >>> Content-Encoding gzip >>> Server Google Frontend >>> Content-Length 2820 >>> Cache-Control public, max-age=288000 >>> Age 90134 >>> X-XSS-Protection 0 >>> >>> The good side headers: >>> Etag "7xGL5w" >>> Date Wed, 02 Jun 2010 19:13:00 GMT >>> Expires Wed, 02 Jun 2010 19:12:04 GMT >>> Content-Type text/css >>> Content-Encoding gzip >>> Server Google Frontend >>> Content-Length 2834 >>> Age 41 >>> Cache-Control public, max-age=600 >>> >>> Short of using a cache-buster, is there a setting I can use on GAE or >>> in my app.yaml file? >>> >>> On Jun 2, 3:01 pm, "Ikai L (Google)" <[email protected]> wrote: >>> > I wonder if there is some layer of the infrastructure that is >>> performing >>> > caching without you guys having opted-in, hence the reason why a >>> > cache-buster like ?v=something works. Can you guys confirm? Also - are >>> you >>> > guys setting any headers? Which headers get returned? >>> > >>> > I've personally always used cache busters for the simple reason that >>> > sometimes users using web-accelerators or with aggressive ISP or >>> caching >>> > settings tend to key off the URL. Can you guys use this workaround in >>> the >>> > meantime? >>> > >>> > On Wed, Jun 2, 2010 at 11:57 AM, Rafael Sierra <[email protected] >>> >wrote: >>> > >>> > >>> > >>> > >>> > >>> > > On Wed, Jun 2, 2010 at 3:37 PM, J <[email protected]> wrote: >>> > > > To reproduce the problem, go to >>> > >http://qa.connectscholar.com/stylesheets/caSkin.css >>> > > > and also tohttp:// >>> charityaxis-qa.appspot.com/stylesheets/caSkin.css. >>> > > > Both URLs point to the same file but one returns the old content >>> and >>> > > > appspot.com returns the new content. >>> > >>> > > Same file here: >>> > >>> > > Hidan:~ sdm$ curlhttp:// >>> charityaxis-qa.appspot.com/stylesheets/caSkin.css> 1 >>> > > % Total % Received % Xferd Average Speed Time Time Time >>> > > Current >>> > > Dload Upload Total Spent Left >>> > > Speed >>> > > 100 10941 0 10941 0 0 6146 0 --:--:-- 0:00:01 >>> --:--:-- >>> > > 31918 >>> > > Hidan:~ sdm$ curlhttp://qa.connectscholar.com/stylesheets/caSkin.css> >>> 2 >>> > > % Total % Received % Xferd Average Speed Time Time Time >>> > > Current >>> > > Dload Upload Total Spent Left >>> > > Speed >>> > > 100 10941 0 10941 0 0 2777 0 --:--:-- 0:00:03 >>> --:--:-- >>> > > 3854 >>> > > Hidan:~ sdm$ md5 1 >>> > > MD5 (1) = 8f5ef511be1a03fd722223337c334933 >>> > > Hidan:~ sdm$ md5 2 >>> > > MD5 (2) = 8f5ef511be1a03fd722223337c334933 >>> > >>> > > > On Jun 2, 1:18 pm, "Ikai L (Google)" <[email protected]> wrote: >>> > > >> Thanks for bringing this up, Tim. Anyone else seeing this problem? >>> If >>> > > so, >>> > > >> please post details. Are you guys setting any kind of cache >>> headers? >>> > >>> > > >> I'm going to try to reproduce these issues, so any information >>> will be >>> > > >> helpful. >>> > >>> > > >> On Wed, Jun 2, 2010 at 9:14 AM, J <[email protected]> >>> wrote: >>> > > >> > Thanks, Tim, for letting me know I'm not going insane. >>> > >>> > > >> > To the Google guys, this problem seems to have started yesterday >>> > > >> > afternoon (1:30-ish PM, EDT) in case it helps you track down the >>> > > >> > cause. >>> > >>> > > >> > On Jun 2, 8:19 am, Tim Hoffman <[email protected]> wrote: >>> > > >> > > Hi >>> > >>> > > >> > > We have been trying to deploy a major revision of one of our >>> apps. >>> > >>> > > >> > > Under the specific version 2-0-0.latest... all the new css/js >>> and >>> > > >> > > static images are available. >>> > >>> > > >> > > When we make the new version default, the css, js and static >>> files >>> > > are >>> > > >> > > accessible via <appid>.appspot.com >>> > >>> > > >> > > However when accessing the same site via the google apps >>> domain >>> > > >> > > mapping we are still >>> > > >> > > getting the old versions css, js and static images. >>> > >>> > > >> > > I have tried removing the apps domain mapping and re-adding it >>> with >>> > > no >>> > > >> > > affect. >>> > >>> > > >> > > We have had to revert to the earlier version as all access to >>> the >>> > > site >>> > > >> > > is via the apps domain and >>> > > >> > > its not working with the latest version missing the new >>> css/js. >>> > >>> > > >> > > has anyone got any ideas on how we can address this. >>> > >>> > > >> > > I know absolutely that the problem is not a browser cache, as >>> I have >>> > > >> > > been checking the css files via wget. >>> > >>> > > >> > > Thanks for any help >>> > >>> > > >> > > regards >>> > >>> > > >> > > Tim >>> > >>> > > >> > -- >>> > > >> > You received this message because you are subscribed to the >>> Google >>> > > Groups >>> > > >> > "Google App Engine" group. >>> > > >> > To post to this group, send email to >>> > > [email protected]. >>> > > >> > To unsubscribe from this group, send email to >>> > > >> > [email protected]<google-appengine%[email protected]><google-appengine%2Bunsubscrib >>> [email protected]><google-appengine%2Bunsubscrib >>> > > [email protected]> >>> > > >> > . >>> > > >> > For more options, visit this group at >>> > > >> >http://groups.google.com/group/google-appengine?hl=en. >>> > >>> > > >> -- >>> > > >> Ikai Lan >>> > > >> Developer Programs Engineer, Google App Engine >>> > > >> Blog:http://googleappengine.blogspot.com >>> > > >> Twitter:http://twitter.com/app_engine >>> > > >> Reddit:http://www.reddit.com/r/appengine >>> > >>> > > > -- >>> > > > You received this message because you are subscribed to the Google >>> Groups >>> > > "Google App Engine" group. >>> > > > To post to this group, send email to >>> [email protected]. >>> > > > To unsubscribe from this group, send email to >>> > > [email protected]<google-appengine%[email protected]><google-appengine%2Bunsubscrib >>> [email protected]> >>> > > . >>> > > > For more options, visit this group at >>> > >http://groups.google.com/group/google-appengine?hl=en. >>> > >>> > > -- >>> > > You received this message because you are subscribed to the Google >>> Groups >>> > > "Google App Engine" group. >>> > > To post to this group, send email to >>> [email protected]. >>> > > To unsubscribe from this group, send email to >>> > > [email protected]<google-appengine%[email protected]><google-appengine%2Bunsubscrib >>> [email protected]> >>> > > . >>> > > For more options, visit this group at >>> > >http://groups.google.com/group/google-appengine?hl=en. >>> > >>> > -- >>> > Ikai Lan >>> > Developer Programs Engineer, Google App Engine >>> > Blog:http://googleappengine.blogspot.com >>> > Twitter:http://twitter.com/app_engine >>> > Reddit:http://www.reddit.com/r/appengine >>> >>> -- >>> You received this message because you are subscribed to the Google Groups >>> "Google App Engine" group. >>> To post to this group, send email to [email protected]. >>> To unsubscribe from this group, send email to >>> [email protected]<google-appengine%[email protected]> >>> . >>> For more options, visit this group at >>> http://groups.google.com/group/google-appengine?hl=en. >>> >>> >> >> >> -- >> Ikai Lan >> Developer Programs Engineer, Google App Engine >> Blog: http://googleappengine.blogspot.com >> Twitter: http://twitter.com/app_engine >> Reddit: http://www.reddit.com/r/appengine >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Google App Engine" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]<google-appengine%[email protected]> >> . >> For more options, visit this group at >> http://groups.google.com/group/google-appengine?hl=en. >> > > -- > You received this message because you are 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To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
