GAE over GGC

[Yasen Simeonov]

I was thinking that GAE content is serving through Google Global Cache (GGC).
I sniffed the traffic and saw that the content of my GAE application is coming from ip address in USA - it is not good since I am at the opposite side of the globe :)
If the PaaS content is coming from a local cache server, this will be big competitive advantage for GAE - faster content delivering.
Out of curiosity, is there a plan to use this infrastructure?

[Richard Watson]

Hi Yasen,

Brandon wrote a schpiel [1] about how you can increase the likelihood that your content is served via the "edge cache" servers, although note that it doesn't seem to be an exact science.  For more info search the group for "edge cache".

[1] https://groups.google.com/d/topic/google-appengine/6xAV2Q5x8AU/discussion

Richard

[Barry Hunter]

One think not noted in that, is the Edge Cache is only used if you use
a Custom Domain - ie via Google Apps*.
http://code.google.com/appengine/articles/domains.html

The *.appspot.com domain name does not use it.

* And/or PSS https://groups.google.com/d/topic/google-appengine/uDqHw-1AFyc/discussion

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[Jim Morrison]

On Mon, Mar 26, 2012 at 1:56 PM, Barry Hunter <barryb...@gmail.com> wrote:

One think not noted in that, is the Edge Cache is only used if you use
a Custom Domain - ie via Google Apps*.
http://code.google.com/appengine/articles/domains.html

The *.appspot.com domain name does not use it.

 Do you have documentation for this claim?

--
Jim

[Barry Hunter]

>
>
>  Do you have documentation for this claim?

I dont think there is any documentation for the edge cache. But its
well discussed in this group - search the archives.

But its also born out experimentally. Apps Domains are cnamed to
ghs.google.com, which resolves to various locations. Appspot doesnt do
this - like noted in the first post. In effect ghs.google.com is
Googles CDN.

can see this with:
http://www.opendns.com/support/cache/

[Jim Morrison]

Something is weird on the opendns cache. just dns lookup returns may
ip addresses. E.g.
http://just-dnslookup.com/index.php?vh=sorced-john-jay.appspot.com&c=&s=dns+lookup%21