Nginx mirror feature instead of relay

[123BLiN]

Hi,

What do you think about new nginx feature - http://nginx.org/en/docs/http/ngx_http_mirror_module.html#mirror
Do you think it may replace relay modules?
What may be downsides of using this approach?

[iomatters]

From my understanding, the nginx mirror does not guarantee delivery to the mirror, though I am not sure the influxdb-relay does.

[iomatters]

Tested - the "buffering" is the key point.

[123BLiN]

@Geekio Could you please elaborate?
I do not expect large POST requests to the influxdb from the collectors, so I though that all data will be buffered in the memory, also nginx has settings for the buffer size http://nginx.org/en/docs/http/ngx_http_core_module.html#client_body_buffer_size
So it should be pretty cheap to use it?

[toomasp]

Tried it, couldn't really get nginx to store a reasonable amount of requests in its buffers. What exact settings do you use to store for example the last 4h of requests?