load balancing % available
reallfqq-nginx at yahoo.fr
Wed Apr 13 10:21:52 UTC 2016
As per the docs, I do not see a mean of doing what you wish directly in an
That cut-off might be a feature request you could post on their bug tracker.
In the meanwhile, you might parse data about servers from an upstream group
on a status page you would have configured.
However, the status module is only part of the commercial version of nginx,
not the FOSS one. Have a look:
That is the best answer I could provide you with. Maybe someone else could
help you further?
On Wed, Apr 13, 2016 at 11:24 AM, benson9 <nginx-forum at forum.nginx.org>
> I'm not yet an Nginx user, but have a question on it's capacbility.
> I've had a look at the http load balancer, but cannot see anything that
> would allow me to set the % or number of servers in an upstream backend
> group that should be available before an error response is returned.
> The scenario I am looking into is one where Nginx can manage load balancing
> across servers in a tier and there are multiple tiers. If less than 50%
> servers are available in any tier I would like to respond with a HTTP
> failure and the hardware load balancer can then route traffic to a standby
> data centre.
> If the status page returns information about all the servers in the group
> each tier then perhaps some orchestrating check called by the hardware load
> balancer could detemine whether the site is considered available?
> Is an orchestrating check available in Nginx and can % available be set?
> I look forward to any responses.
> Posted at Nginx Forum:
> nginx mailing list
> nginx at nginx.org
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