I get "Request was aborted after waiting too long to attempt to
service your request. This may happen sporadically when the App Engine
serving cluster is under unexpectedly high or uneven load. If you see
this message frequently, please contact the App Engine team." when
there is another request coming in meanwhile my application is being
initialized after it is spin-down.
My application takes around 26 seconds to start-up. During this 26
seconds, if there is another request, the request will hit the
"Request was aborted after waiting too long to attempt to service your
request" error in 2-10 seconds (before the 30s limit). If the system
can queue the request for 30s (the hard limit), I believe the request
can still be served.
The first request which triggers the application start-up was finally
served without any problem. However, the second request hits 500 error
before the first request being served. This can be observed in the
log.
04-25 07:13PM 53.849 /post/0 200 27069ms 38750cpu_ms 444api_cpu_ms 9kb
Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.1.9) Gecko/
20100315 Firefox/3.5.9,gzip(gfe)
See details
....
I 04-25 07:13PM 57.570
javax.servlet.ServletContext log: Initializing Spring root
WebApplicationContext
...
W 04-25 07:14PM 20.916
This request caused a new process to be started for your
application, and thus caused your application code to be loaded for
the first time. This request may thus take longer and use more CPU
than a typical request for your application.
04-25 07:14PM 09.687 /person/location 500 10022ms 0cpu_ms 0kb Mozilla/
5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.1.9) Gecko/20100315
Firefox/3.5.9,gzip(gfe)
See details
....
W 04-25 07:14PM 19.709
Request was aborted after waiting too long to attempt to service
your request. This may happen sporadically when the App Engine serving
cluster is under unexpectedly high or uneven load. If you see this
message frequently, please contact the App Engine team.
In this case, could the "background servers" solve the problem? How
can I hand off the request which is coming in when the application is
in the midst of starting up to the background worker?
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