[Kea-users] Kea VM sizing ?

[Klaus Steden]

Our Kea solution is pretty lightweight:

2 VMs running Ubuntu 18
2 vCPUs per VM
8 GB vMEM (but using less than 4 GB)

DHCP VMs use hosted MySQL so neither VM runs a database process locally.

We're serving about 11K clients, load average hovers pretty close to zero
the whole time.

hth,
Klaus

On Tue, Apr 12, 2022 at 7:24 AM David Ramsey <dmr at ramseyfamily.org> wrote:

> Thank you for the feedback, folks, both on-list and off.
>
> Bjørn - your scenario very closely resembles what we plan to deploy -
> thank you for the detail.  I am impressed that you can serve 40k+ subs with
> only 2 vCPU and especially only 2GB RAM -- great news.
>
> --dmr
>
>
> On Tue, Apr 12, 2022 at 5:08 AM Bjørn Skovlund <skovlund at gmail.com> wrote:
>
>> Hi David,
>>
>> We're running well over 40K customers on a set of HA KEA DHCP on 2 vCPU
>> and 2 GB memory, with MariaDB backend (placed on the VMs). Lease time is 1
>> hour and we can recover from outages.
>>
>> We're running Flex ID and forensic logs. CPU usage is averaging about 25%.
>>
>> Best, Bjørn
>>
>> On Fri, Apr 8, 2022 at 11:08 PM David Ramsey <dmr at ramseyfamily.org>
>> wrote:
>>
>>> Is there any virtual machine sizing data available for ISC Kea DHCP ?
>>>
>>> In particular I don't know how to spec out RAM and # vCPUs..
>>>
>>> I realize "it depends", of course, but are there any ballpark guides or
>>> formulas anywhere?
>>>
>>> Thanks, --David
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