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Posted to users@httpd.apache.org by Kristian Rink <ka...@gmail.com> on 2016/12/14 09:57:35 UTC
[users@httpd] mod_proxy_balancer and multiple (dynamic) backends?
Folks;
unsure whether this is the right place to ask and whether this is possible to be accomplished out of
the box at all: So far we run an apache 2.4 mod_proxy balancer in front of several backend services.
So far there are four backend instances configured into one balancer. This works pretty well but it
has a drawback: We can't easily add new instances at runtime without manually changing and reloading
the apache configuration. Likewise, I would appreciate having a process that dynamically and
automatically adds new balancer backends while "deactivating" old ones to be at least sure no new
sessions go there so it can be brought down as soon as all active sessions have ended.
Is this kind of "dynamics" possible with apache / mod_proxy / balancer? Any recommendations on that?
TIA and all the best,
Kristian
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Re: [users@httpd] mod_proxy_balancer and multiple (dynamic) backends?
Posted by Jim Jagielski <ji...@jaguNET.com>.
The page is just one way to do it... It is just an interface
to the series of GETs required. I use it w/ curl all the time.
> On Dec 15, 2016, at 3:11 AM, Kristian Rink <ka...@gmail.com> wrote:
>
> Hi there;
>
> and thanks for your feedback. :)
>
> Am Mittwoch, den 14.12.2016, 07:43 -0500 schrieb Jim Jagielski:
>> I think that balancer-manager is exactly what you are looking for.
>>
>> http://httpd.apache.org/docs/2.4/howto/reverse_proxy.html#manager
>>
>
> Yes, I already stumbled across this - but this seems a thing for "manual" interaction, while I would
> like to have such procedures implemented in scripts. :) Is there some sort of HTTP / REST API for
> this, too, or will I need to use some HTTP client library to remote-control the web UI? :)
>
> Cheers and thanks again,
> Kristian
>
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Re: [users@httpd] mod_proxy_balancer and multiple (dynamic)
backends?
Posted by Kristian Rink <ka...@gmail.com>.
Hi there;
and thanks for your feedback. :)
Am Mittwoch, den 14.12.2016, 07:43 -0500 schrieb Jim Jagielski:
> I think that balancer-manager is exactly what you are looking for.
>
> � http://httpd.apache.org/docs/2.4/howto/reverse_proxy.html#manager
>
Yes, I already stumbled across this - but this seems a thing for "manual" interaction, while I would
like to have such procedures implemented in scripts. :) Is there some sort of HTTP / REST API for
this, too, or will I need to use some HTTP client library to remote-control the web UI? :)
Cheers and thanks again,
Kristian
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Re: [users@httpd] mod_proxy_balancer and multiple (dynamic) backends?
Posted by Jim Jagielski <ji...@jaguNET.com>.
I think that balancer-manager is exactly what you are looking for.
http://httpd.apache.org/docs/2.4/howto/reverse_proxy.html#manager
Cheers!
> On Dec 14, 2016, at 4:57 AM, Kristian Rink <ka...@gmail.com> wrote:
>
> Folks;
>
> unsure whether this is the right place to ask and whether this is possible to be accomplished out of
> the box at all: So far we run an apache 2.4 mod_proxy balancer in front of several backend services.
> So far there are four backend instances configured into one balancer. This works pretty well but it
> has a drawback: We can't easily add new instances at runtime without manually changing and reloading
> the apache configuration. Likewise, I would appreciate having a process that dynamically and
> automatically adds new balancer backends while "deactivating" old ones to be at least sure no new
> sessions go there so it can be brought down as soon as all active sessions have ended.
>
> Is this kind of "dynamics" possible with apache / mod_proxy / balancer? Any recommendations on that?
> TIA and all the best,
> Kristian
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
> For additional commands, e-mail: users-help@httpd.apache.org
>
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