[Kea-users] Kea HA issue with terminating connection

[Darren Ankney]

Hi Sebastian,

Please share the HA messages surrounding and including one of these
terminations.  The termination, or a proceeding message should state
the cause.  The 'ResourceBusy' messages are not warnings I am familiar
with.  Could you also send your HA configuration from each server
(anonymized of course)?

Thank you,

Darren Ankney

On Sat, Jun 10, 2023 at 11:51 AM sebastians <sebastians at selfnet.de> wrote:
>
> Hi all,
>
> we recently migrated our DHCP setup from dhcpd to Kea. It runs on
> two servers with hot standby and a memfile backend for the leases. Kea
> assigns IP addresses for around 7000 pools.
>
> Over the past few months the HA connection terminated in random intervals.
> From looking at the logs on the passive node I can see a lot of
> 'ResourceBusy: IP address ... could not be updated' warnings prior to
> the connection terminating. Since multithreading is enabled I suspected
> this may be due to the threads encountering a resource lock on the memfile.
> I suppose after the lease update fails a few times, the connection is terminated.
>
> Is the 'ResourceBusy' warning the cause for the terminating HA connection and
> is there any way to fix the underlying issue? Any ideas on the issue are greatly
> appraciated.
>
> Thanks,
>
> Sebastian
> --
> 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 at lists.isc.org
> https://lists.isc.org/mailman/listinfo/kea-users