What's the difference between static and cached requests in the dashboard?

[Waleed Abdulla]

I noticed a big increase in requests today, and it looks like it's due to a sharp increase in "cached requests" (see image). I know that dynamic requests refer to those that reach a request handler, and static are those that are delivered through the CDN. Does anyone know what "cached requests" are? I couldn't find any documentation about it. Are they simply static requests that return 304 (not modified)?

[Ronoaldo José de Lana Pereira]

I'm experiencing the same here. I'm having lots of instances and most of the requests are cached requests too. Does it means that they wasn't showing up before, or that we are actually having more traffic. Also, if they are most cached requests, why do we need more instances to serve them?

[Waleed Abdulla]

Along with the sharp increase in "cached requests" I'm also noticing a sharp increase in Outgoing Bandwidth (see image). It contradicts my original guess that "cached requests" are those that return code 304 because those don't send much data, while I'm noticing a 300% increase in Bytes Sent per second. 

So the question remains, what are "cached requests"? 

2011/6/30 Ronoaldo José de Lana Pereira <rper...@beneficiofacil.com.br>

I'm experiencing the same here. I'm having lots of instances and most of the requests are cached requests too. Does it means that they wasn't showing up before, or that we are actually having more traffic. Also, if they are most cached requests, why do we need more instances to serve them?

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[Ross M Karchner]

I'm _pretty_ sure "cached" means served by the front end cache:

http://www.kyle-jensen.com/proxy-caching-on-google-appengine

On Wed, Jun 29, 2011 at 6:35 PM, Waleed Abdulla <wal...@ninua.com> wrote:

I noticed a big increase in requests today, and it looks like it's due to a sharp increase in "cached requests" (see image). I know that dynamic requests refer to those that reach a request handler, and static are those that are delivered through the CDN. Does anyone know what "cached requests" are? I couldn't find any documentation about it. Are they simply static requests that return 304 (not modified)?

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[Waleed Abdulla]

Thanks, Ross. That explains it. Didn't know about the front-end cache. 

[Robert Kluin]

Nobody *really* knows about it beyond that is exists; it is completely
undocumented.

[Brandon Wirtz]

And at least on my accounts still only works on MS.

[Stephen]

On Sat, Jul 2, 2011 at 2:29 AM, Robert Kluin <robert...@gmail.com> wrote:
>
> Nobody *really* knows about it beyond that is exists; it is completely
> undocumented.

Anybody who wants to know more about the cache may consider starring this:

http://code.google.com/p/googleappengine/issues/detail?id=2258

30 so far, joint ~150th, so don't hold your breath.