Rewrite_module patch: 'if (-z)' checks for zero-length files

Hi!

I’ve a heavy loaded reverse proxy for large video files on
nginx/http_proxy_module. Sometimes I cache a zero-length file due to a
problem of the upstream server and it’s a headache for my client. I
found that, the “if” conditions of the rewrite module doesn’t support
checks based on file size, so I wrote some code for that, you can found
as a diff for 0.7.62 here: http://pastebin.com/m793679da -It’s a
lightweight modification, I think it could go into mainline.

[…]
location / {
[…]

if (!-f $request_filename) { # damned empty cached files,

if (-z $request_filename) { # bye, bye! :slight_smile:
proxy_pass http://indavideo;
}
[…]
}
[…]

Thanks for your great work,

Roland Pallai
Sysadmin at Indavideo.hu

Posted at Nginx Forum:
http://forum.nginx.org/read.php?2,13944,13944#msg-13944

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