Hi Nickolas,
A good overview of the NGINX buffering mechanism can found on this third-party website <http://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_max_temp_file_size>. As described, “When buffering of responses from the proxied server is enabled, and the whole response does not fit into the buffers set by the proxy_buffer_size and proxy_buffers directives, a part of the response can be saved to a temporary file.”. Therefore, it will be important to look at the response generating these warning and check for any inconsistencies to determine if something is wrong with the App Engine Flexible environment. Also, determining if this warning is linked to any particular handler or endpoint may give additional insight to the root cause. Would you be able to provide some sort of stack trace of the response? Now as to how to mitigate these warnings themselves, you may be able to disable the response buffer by setting the X-Accel-Buffering response header to “no” as demonstrated in this Request Handling concept page <https://cloud.google.com/appengine/docs/flexible/python/how-requests-are-handled#x-accel-buffering> . -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/google-appengine. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/6d241c7d-f106-4e51-ad7a-e4c96a9a4987%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
