Just the opposite. All of the requests we are sending to App Engine are
compressed. Normal case is that our App Engine Java app will receive
them as being uncompressed. But occasionally App Engine Java app will
receive them as still being uncompressed.
On 18.1.2022 15.05, 'Felipe Bergallo Corral' via Google App Engine wrote:
So, just to get this straight because I can be a little slow on the
uptake sometimes:
All of the requests you are sending to App Engine are uncompressed,
but occassionally App Engine will receive them as being compressed, is
that correct?
On Wednesday, January 12, 2022 at 3:36:26 PM UTC+1
[email protected] wrote:
Sorry not to be clear enough. I am talking about inbound traffic
here, so HTTP POST requests to the App Engine. Not HTTP responses
from the App Engine.
Our responses from App Engine are zipped just fine by the
platform, no problems there.
The case here really is HTTP POSTs to the App Engine when the HTTP
request POST body is compressed. Normal cases are that App Engine
will get the request as already uncompressed but sometimes the
request is coming as is thus still compression in place. I am
suspecting that it has something to do with the request size. I am
not sure though.
On Wednesday, 12 January 2022 at 13:20:22 UTC+2
[email protected] wrote:
My understanding is that that 32MB constraint is only if the
responses are not on Cloud Storage or Legacy Blobstore. If
you're requesting gzip-compressed responses, then the
responses shouldn't be uncompressed, as far as I understand it
- according to this
<https://cloud.google.com/appengine/docs/standard/java/how-requests-are-handled#response_compression>,
if the request doesn't specify compressed responses ( by
having the header /Accept-Encoding: gzip/) it should return
uncompressed responses. The likely reason for some responses
being compressed and others not is due to caching
<https://cloud.google.com/appengine/docs/standard/java/how-requests-are-handled#response_caching>
if you've configured, if you've configured it (though I
believe there is a predetermined configuration).
Though I'm not sure how to answer your third question, would
you mind rephrasing it? I'm not sure what you mean
On Wednesday, January 12, 2022 at 9:38:57 AM UTC+1
[email protected] wrote:
We use App Engine standard with Java 8. We have a client
that sends HTTP POST (post body as JSON) requests as
gzip-compressed. In normal cases, everything works just
fine. The frontend will uncompress the requests and the
App Engine will see the uncompressed request.
But with some requests (large ones?) uncompressing is not
done by the frontend. This is seen as the request header
/content-encoding=[gzip] /is still in the request headers
and content is binary when the request arrives in App
Engine. Our application is not prepared to uncompress the
request but relies on the frontend to uncompress it. We
couldn't find much information about the rules of
uncompressing requests. The page
https://cloud.google.com/appengine/docs/standard/java/how-requests-are-handled#request_limits
says only that the request limit is 32 megabytes. Our
failing requests are far below that limit in both
compressed and uncompressed.
* Is there a way to find out why some requests are not
uncompressed?
* If it is the size of the request, can the limit be
configured/increased?
* Is the best practice that the application must handle
compressed requests also even frontend is taking care
of the majority of the compressed requests?
* Is there documentation somewhere telling more about
compressed request limits/handling in App Engine
standard?
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