Hi, We don't use any database for storing the KEA configuration: we use plain json configuration files. We need to update the configuration very regularly because we allow only known clients (pre-registered mac addresses), hence the list of host-reservations is quite volatile.
Véronique ________________________________ From: Dan Oachs <doa...@gac.edu> Sent: Wednesday, November 16, 2022 6:31 PM To: Veronique Lefebure <veronique.lefeb...@cern.ch> Cc: kea-users@lists.isc.org <kea-users@lists.isc.org> Subject: Re: [Kea-users] How to best update the KEA configuration on a HA hot-standby KEA setup I am curious why you are updating the config every 5 minutes. We used to do that with our old DHCP server, but with Kea we moved to storing reservations in a database. That way we rarely need to make changes to the actual Kea configuration that would necessitate a reload of the config. --Dan On Wed, Nov 16, 2022 at 10:27 AM Veronique Lefebure <veronique.lefeb...@cern.ch<mailto:veronique.lefeb...@cern.ch>> wrote: Hi, When running KEA on one single server, (no HA), and updating the KEA dhcp configuration file every 5 minute, using "config-set" https://kea.readthedocs.io/en/latest/arm/ctrl-channel.html?highlight=config-set#the-config-set-command , we can see that KEA does not reply to the DHCP requests during 30-35 seconds while "config-set" is running. Is it expected ? If yes, if we add a second server in a HA hot-standby mode, can we expect it to answer to the DHCP requests while the first server is busy with config-set ? If yes, we need to update the second server asynchronously with respect to the first one, else they would both be busy with "config-set" at the same time. I would be interested to know how people are updating the KEA DHCP configuration in a HA hot-standby setup. Thanks, Veronique -- ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information. To unsubscribe visit https://lists.isc.org/mailman/listinfo/kea-users. Kea-users mailing list Kea-users@lists.isc.org<mailto:Kea-users@lists.isc.org> https://lists.isc.org/mailman/listinfo/kea-users
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