Thanks!
What do you think about this approach:
http://engineeringblog.yelp.com/2015/04/true-zero-downtime-haproxy-reloads.html
Seems a bit complicated to get it right but wonder if it's worth investing into.
Tugberk
> Subject: Re: Using socket commands to add a new server to a backend
> To: [email protected]; [email protected]
> From: [email protected]
> Date: Tue, 17 May 2016 13:40:55 +0200
>
> On 05/17/2016 12:53 PM, Tugberk Ugurlu wrote:
> > Thanks for getting back!
> > Is there a place that I can influence this change or do you think that this
> > is something not possible cuz of some internal architectural concerns or
> > similar? I am trying to mimic the AWS ELB's register and deregister
> > features.
> > BTW, is HAProxy open source? If so, is it on GitHub or somewhere else?
>
> It most certainly is. You can find links to git repositories and other
> resources at http://www.haproxy.org/
>
> Note that the main repos are _not_ on Github, but if you prefer Github
> there is an _inofficial_ clone on Github: https://github.com/haproxy/haproxy
>
> For discussions and feature requests this mailing list is the right place.
> As for this specific feature, it has been requested several times before
> and is, as far as I understand, being worked on, but not with high priority.
>
> > Thanks for getting back again, I do appreciate it!
>
> You're welcome :)
>
> Conrad
>
>
> > Tugberk
> >
> >> Subject: Re: Using socket commands to add a new server to a backend
> >> To: [email protected]; [email protected]
> >> From: [email protected]
> >> Date: Tue, 17 May 2016 12:30:47 +0200
> >>
> >> Hi Tugberk,
> >>
> >> On 05/16/2016 05:25 PM, Tugberk Ugurlu wrote:
> >>> Hi,
> >>> Is it possible to register a new server under a backend? This is similar
> >>> to what is being asked here:
> >>> http://haproxy.formilux.narkive.com/1OibZABp/using-haproxy-socket-to-add-new-servers
> >>> I cannot see the command available under the documented list of commands:
> >>> http://cbonte.github.io/haproxy-dconv/configuration-1.5.html#9.2
> >>
> >> The response from the thread you linked to still holds true.
> >>
> >>> I am not sure what is the best way to handle rolling out new servers and
> >>> taking down the old ones without any downtime through an automated way.
> >>
> >> The reload in haproxy is designed to be very-close-to-zero downtime, so
> >> depending on your use case it might just be good enough. If you do opt for
> >> the solution mentioned in the above thread, do keep in mind that your
> >> config on disk an the state in haproxy might diverge, so your deployments
> >> will have take that into consideration.
> >>
> >> Cheers,
> >> Conrad
> >> --
> >> Conrad Hoffmann
> >> Traffic Engineer
> >>
> >> SoundCloud Ltd. | Rheinsberger Str. 76/77, 10115 Berlin, Germany
> >>
> >> Managing Director: Alexander Ljung | Incorporated in England & Wales
> >> with Company No. 6343600 | Local Branch Office | AG Charlottenburg |
> >> HRB 110657B
> >
> >
>
> --
> Conrad Hoffmann
> Traffic Engineer
>
> SoundCloud Ltd. | Rheinsberger Str. 76/77, 10115 Berlin, Germany
>
> Managing Director: Alexander Ljung | Incorporated in England & Wales
> with Company No. 6343600 | Local Branch Office | AG Charlottenburg |
> HRB 110657B
