> Hello all, > > Hopefully I'm not asking an question that's been answered many times > before; I've been unable to find anything via Google. > > Short version: > When I attempt to stream data to a uwsgi server running a JSONRPC > application, every other request fails with the error 'Error writing > request body to server', even if the data is < 100B. This effect where > the first request succeeds, the second fails, third succeeds, etc. is > completely reproducible and constant. When I set up the client so that > it buffers the request and then sends it all in one piece everything > works normally. Also, if I start the server via > wsgiref.simple_server.make_server.serve_forever() everything works > normally. > > More details: > I'm currently testing with Java code; the error can be toggled on by > setting one of > http://docs.oracle.com/javase/7/docs/api/java/net/HttpURLConnection.html#setFixedLengthStreamingMode%28int%29 > http://docs.oracle.com/javase/7/docs/api/java/net/HttpURLConnection.html#setChunkedStreamingMode%28int%29 > > Also, putting nginx in front of the server fixes the problem, presumably > because nginx buffers the entire request before sending it to uwsgi. > > Interestingly, if I sleep for at least 5s prior to each request, the > problem is resolved. At 4s every second request fails. > > The uwsgi command line is: > uwsgi --master --processes 20 --cheaper 4 \ > --http :10000 --http-timeout 600 --pidfile pyservice.pid > --daemonize uwsgi.log \ > --wsgi-file PyLogServer.py > > My uwsgi version is pretty old, 1.4.4. Ubuntu is 12.04. > > Any ideas what might be causing this problem / debugging suggestions? > Are there any more details I could provide that might be useful? > > Thanks, Gavin > >
What you mean for "streaming ? Because if you mean chunked body it is not supported by WSGI specs (albeit uWSGI has an api for it) Btw, you should post uWSGI logs for both successful requests and failed ones. And if you can previde an example client it would help in understanding what is going on. -- Roberto De Ioris http://unbit.it _______________________________________________ uWSGI mailing list [email protected] http://lists.unbit.it/cgi-bin/mailman/listinfo/uwsgi
