XML files truncated

[Maxim Dounin]

Hello!

On Mon, May 31, 2010 at 11:43:21AM +0200, Axel wrote:

> Hi guys, 
> 
> I recently migrated from Apache to Nginx. Really cool. My 
> website is much faster. BUT I have a really weird issue that 
> didn't occur with Apache. It seems that some big files are 
> sometimes truncated by the server. For instance, I generate a 
> 200 entries videos sitemap (4600 lines) for Google (Google 
> allows up to 50 000 entries FYI). Quite often, Google cannot 
> parse this XML file because it is truncated in the middle and 
> the XML is therefore no longer valid. It seems I have the same 
> issue when I browse this XML into Safari or Firefox. When I try 
> a feed validator (http://validator.w3.org/feed/check.cgi), the 
> test fails 8 times out of 10 and the source is clearly 
> truncated. 
> 
> I tried to disable gzip encoding or to adapt quite a lot of 
> settings. Nothing did the trick. Have U any idea that could 
> help?
> Thks a lot

1. As Anton already suggested, try looking into error log.  From 
symptoms you describe it looks like nginx can't write to 
fastcgi_temp_path/proxy_temp_path, it should complain in logs.

2. If the above doesn't help, please follow this topic:

http://wiki.nginx.org/NginxDebugging

You have to provide config, nginx -V and debug log of a request 
which exposes the problem.

Maxim Dounin