HealthCheck in Baseconfiguration

Server NGINX
1

Hello,

i use nginx 1.0.12 and 1.2.4
I know there is a special healthcheckmodule. But i want to know if nginx
ist
doing a kind of healtcheck in its basic Configuration without the
special
HttpHealthcheckModule. Is nginx able to check and/or weight his backend
in a
simple base Configuration?

Thanks,
Hajo

Posted at Nginx Forum:

2

On Apr 18, 2013, at 12:37 PM, “HajoLOcke” [email protected] wrote:

Hello,

i use nginx 1.0.12 and 1.2.4
I know there is a special healthcheckmodule. But i want to know if nginx ist
doing a kind of healtcheck in its basic Configuration without the special
HttpHealthcheckModule. Is nginx able to check and/or weight his backend in a
simple base Configuration?

There has been always a mechanism to check backend state in nginx load
balancing code.

However, that’s not an “out-of-band” health checking, as you pointed
out. It’s more like an integrated or “in-band” synchronous check.

Rationale for that is that nginx was developed and mostly used across
high load environments, so an asynchronous health check running every
few minutes doesn’t really help when you’ve got thousands requests per
second per backend.

We always check if a particular request has failed, and you’ve got means
to configure the restoration logic.

http://nginx.org/en/docs/http/ngx_http_upstream_module.html#server

3

Hello,

thanks for your quick response. I tried the HttpHealthcheckModule 2
years
ago.
Then this module only worked in combination with round_robin and not
ip_hash. Has this situation changed?
May be i dont need this Module, but i want to do some tests with it.

Thanks,
Hajo

Posted at Nginx Forum: