Forum: NGINX Record log of full error response?

Hello nginxers,

I've read about the error_page[1] config setting and it's great. However
serving a custom page instead of the error and just storing the error
code in an entry in /var/nginx/log/error.log is not enough for me: I
need to log the full page (the response besides the http status code).

Is there any way to do this? Any config setting I missed? Or any nginx
module that allows it?

Thanks,
   Andres



[1] http://wiki.nginx.org/HttpCoreModule#error_page

> serving a custom page instead of the error and just storing the error code
> in an entry in /var/nginx/log/error.log is not enough for me: I need to
> log the full page (the response besides the http status code).
> Is there any way to do this? Any config setting I missed?

This suggests your are using dynamic language (like php) for serving 
error
pages, right?
While it probably could be done with nginx itself (with using lua/perl
modules) in case of php you could just buffer the whole output (
http://php.net/manual/en/function.ob-start.php ) and store wherever you
want.


rr

On 26/09/12 13:27, Reinis Rozitis wrote:
>> serving a custom page instead of the error and just storing the error
>> code in an entry in /var/nginx/log/error.log is not enough for me: I
>> need to log the full page (the response besides the http status code).
>> Is there any way to do this? Any config setting I missed?
>
> This suggests your are using dynamic language (like php) for serving
> error pages, right?

Why?

No. I'm using a VM (that allows dynamic and static languages on top, but
the question of what kind of typing my language has I guess is already
out of topic).


> While it probably could be done with nginx itself (with using lua/perl
> modules) in case of php you could just buffer the whole output (
> http://php.net/manual/en/function.ob-start.php ) and store wherever you
> want.


I'm using fastcgi for the communication between nginx and the
application server.

Do you think there is some setting in the fastcgi configuration that
would help me?

Thanks

On 26/09/12 19:35, Andres G. Aragoneses wrote:
> On 26/09/12 13:27, Reinis Rozitis wrote:
>>> serving a custom page instead of the error and just storing the error
>>> code in an entry in /var/nginx/log/error.log is not enough for me: I
>>> need to log the full page (the response besides the http status code).
>>> Is there any way to do this? Any config setting I missed?
>>
>> This suggests your are using dynamic language (like php) for serving
>> error pages, right?


BTW, I'm not trying to log the error page I want to serve, but the error
page I got from the fastcgi source.

> I'm using fastcgi for the communication between nginx and the application
> server.
> Do you think there is some setting in the fastcgi configuration that would
> help me?

You can try to use fastcgi_store (
http://wiki.nginx.org/HttpFastcgiModule#fastcgi_store ) -  it allows 
nginx
to store the response from backend locally.

rr

On 27/09/12 00:08, Reinis Rozitis wrote:
>> I'm using fastcgi for the communication between nginx and the
>> application server.
>> Do you think there is some setting in the fastcgi configuration that
>> would help me?
>
> You can try to use fastcgi_store (
> http://wiki.nginx.org/HttpFastcgiModule#fastcgi_store ) -  it allows
> nginx to store the response from backend locally.

Thanks Reinis, I'll give that a go.