ignore redis response and serve empty_gif

cmpscabral · 2014-10-31T22:31:29+00:00

will give it a try but I'm not that familiar with cosockets too. thanks for the heads up !On Tuesday, November 4, 2014 1:57:34 PM UTC-2, Evan Wies wrote:You...

ignore redis response and serve empty_gif

cmpscabral

Hi,

I'm fairly new to the nginx+redis stack so please bear with me if I'm making big mistakes here (all advice is welcome).

I'm trying to collect statistics using nginx as the public facing server and storing data in redis (data will later be processed by another system). I'm using redis2NginxModule (http://openresty.org/#Redis2NginxModule).

All I need to do is save the request parameters in redis and serve an empty_gif - problem is I can't seem to configure nginx to do both in the same request.

Right now I have this config file:

(...)

location = /_.gif {
  redis2_query rpush pixel.tracking "$msec,$args";
  redis2_pass 127.0.0.1:6379;
  #empty_gif;
}

If I remove the comment in "empty_gif", I get the transparent gif but no record is saved in redis...

Can someone please tell me what I'm doing wrong?

Thank you!

hamish.forbes

It would probably be a lot easier to use Lua for this (https://github.com/openresty/lua-resty-redis) rather than the Redis2 nginx module.

If you use resty.redis in rewrite_by_lua you should avoid conflicting with anything in the content phase (like empty_gif).

Hamish

On Friday, 31 October 2014 14:31:28 UTC, Carlos Cabral wrote:

Hi,

I'm fairly new to the nginx+redis stack so please bear with me if I'm making big mistakes here (all advice is welcome).

I'm trying to collect statistics using nginx as the public facing server and storing data in redis (data will later be processed by another system). I'm using redis2NginxModule (http://openresty.org/#Redis2NginxModule).

All I need to do is save the request parameters in redis and serve an empty_gif - problem is I can't seem to configure nginx to do both in the same request.

Right now I have this config file:

(...) location = /_.gif { redis2_query rpush pixel.tracking "$msec,$args"; redis2_pass 127.0.0.1:6379; #empty_gif; }

If I remove the comment in "empty_gif", I get the transparent gif but no record is saved in redis...

Can someone please tell me what I'm doing wrong?
Thank you!

cmpscabral

Hi Hamish,

Thank you for your reply, it's working as expected now :) I'm using lua-resty-redis as you suggested.

Regards,

Carlos

On Friday, October 31, 2014 2:59:34 PM UTC, Hamish Forbes wrote:

It would probably be a lot easier to use Lua for this (https://github.com/openresty/lua-resty-redis) rather than the Redis2 nginx module.

If you use resty.redis in rewrite_by_lua you should avoid conflicting with anything in the content phase (like empty_gif).

Hamish

On Friday, 31 October 2014 14:31:28 UTC, Carlos Cabral wrote:
Hi,

I'm fairly new to the nginx+redis stack so please bear with me if I'm making big mistakes here (all advice is welcome).

I'm trying to collect statistics using nginx as the public facing server and storing data in redis (data will later be processed by another system). I'm using redis2NginxModule (http://openresty.org/#Redis2NginxModule).

All I need to do is save the request parameters in redis and serve an empty_gif - problem is I can't seem to configure nginx to do both in the same request.

Right now I have this config file:

(...) location = /_.gif { redis2_query rpush pixel.tracking "$msec,$args"; redis2_pass 127.0.0.1:6379; #empty_gif; }

If I remove the comment in "empty_gif", I get the transparent gif but no record is saved in redis...

Can someone please tell me what I'm doing wrong?
Thank you!