Hello,
nginx 1.4.1 is truncating proxy output for large files.
*** Steps to reproduce ***
nginx.conf:
location ^~ /download/ {
proxy_pass http://localhost:9000;
proxy_set_header Host $host;
}
The back end is a very simple servlet that copies a static file to the
output stream. The test file is 7147652 bytes. Small files are
delivered correctly,
*** Test results ***
First to show that the back end is sending a full file access it
directly on port 9000:
$ curl http://domain.local:9000/download/file.pdf | wc
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 6980k 0 6980k 0 0 39.3M 0 --:--:-- --:--:-- --:--:--
39.6M
39699 166238 7147652
7147652 bytes delivered correctly.
Example of failure, request via nginx:
$ curl http://domain.local/download/file.pdf | wc
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 167k 0 167k 0 0 5779k 0 --:--:-- --:--:-- --:--:--
5992k
1959 3853 171828
Only 171828 bytes delivered.
By restricting the download speed more bytes are delivered, slower is
better, eg:
$ curl --limit-rate 200k http://domain.local/download/file.pdf | wc
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 6980k 0 6980k 0 0 200k 0 --:--:-- 0:00:34 --:--:--
200k
39699 166238 7147652
*** Workaround ***
Add limit-rate to nginx.conf:
location ^~ /download/ {
proxy_pass http://localhost:9000;
proxy_set_header Host $host;
limit_rate 1000k;
}
$ curl http://domain.local/download/file.pdf | wc
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 6980k 0 6980k 0 0 1000k 0 --:--:-- 0:00:06 --:--:--
1001k
39699 166238 7147652
Full 7147652bytes delivered
*** Other information ***
This is similar to:
http://mailman.nginx.org/pipermail/nginx/2012-April/033272.html
The workaround for this was also set a limit rate in nginx.conf.
nginx 1.4.1
Solaris 10u11
James.
_______________________________________________
nginx mailing list
[email protected]
http://mailman.nginx.org/mailman/listinfo/nginx
