On Wed, Nov 02, 2022 at 01:38:10PM +0100, Klaus Darilion via dnsdist wrote:
> (resent to the list) > > Hi Remi! > > > On 07/10/2022 10:53, Klaus Darilion via dnsdist wrote: > > > > > We use dnsdist with 1 single backend server (PDNS). So if this backend > > > is overloaded, dnsdist will detect the backend as DOWN. Hence, the only > > > server for this backend pool down. How will dnsdist behave if all > > > servers for a backend pool are down? Will it stop senden queries to the > > > backend, or will it still send queries to the DOWN server as there is no > > > UP server available? > > > > All of the built-in load balancing policies will stop forwarding queries > > when all the servers in the selected pool are down. It would be possible > > to write a custom load-balancing in Lua that does not do that, of > > course, but I don't think that's what you want in that case. > > > > > So it may be useful to disable healthchecks completely. How can this be > > > done? > > > > You can force a server in the "up" state using the 'setUp()' method, see > > [1]. > > Shouldn't newServer(...healthCheckMode='UP') also work? In my case it does > not work. > I have set healthCheckMode='UP' but: > showServers show status as "up" whereas after setUp() the status is "UP". And > it still does helathchecks and status goes "down" if the backend is down. > > What is wrong? The docs? Am I misinterpreting the docs? Bug? Which version are yor running? healthCheckMode wil only be available in 1.8.0, which is not released yet. See https://dnsdist.org/reference/config.html?highlight=newserver#newServer -Otto _______________________________________________ dnsdist mailing list dnsdist@mailman.powerdns.com https://mailman.powerdns.com/mailman/listinfo/dnsdist
