Hi Kraishak,
I would suspect that you have a particularly chatty client that is
constantly renewing the lease. I suspect that by the time you start
the server and have a chance to perform the lease4-get-all that the
client has already renewed the lease. You confirm this by having a
look in the logs. Possibly, while testing, set the severity to DEBUG
and debug level to 99.
lease4-get-all is getting the data from the kea-dhcp4 server, it has
no where else to get it from. It has to be the data as the kea-dhcp4
server sees it.
Thank you,
Darren Ankney
On Fri, Apr 21, 2023 at 11:05 AM Kraishak Mahtha <kraishak....@gmail.com> wrote:
>
> Hi All,
> I am using the kea-HA in load balance mode, as part of testing I configured a
> subnet and set the lease time to "86400", later as part of the change I
> changed the scope rang and restarted kea-dhcp4(stopped and started) but still
> the lease4-get-all command shows all the old lease as active.
> Command I used to get lease : echo '{"command":"lease4-get-all"}' |
> /usr/bin/socat - UNIX:/root/tmp/kea4-ctrl-socket
>
> I stopped kea-DHCP on both servers, deleted all the lease files(kea service
> created two lease files with .2 extension remove that too), and then
> recreated with empty, and then started one by one but still, the command
> gives me the old leases data, Now I removed the HA config and made it
> standalone, deleted all the lease files and recreated lease file with empty
> data and started again but still, it shows the old lease entries as active.
>
> I tried adding the sanity check section too in the config, line
> "lease-checks": "del" but it looks like it works at the subnet level, if I
> remove the subnet then it is not showing the data, but when I add it back the
> subnet with the different pool range still I can get the old lease data.
>
> I have two doubts
> 1)Even after deleting the lease file and deleting the range from the config
> file how can the server still have the lease information or from where does
> it get the data, Can we reset it manually or do we have any approach that
> needs to be followed for the server to auto figure out the lease entries are
> not used as the range definition itself is removed from the config file.
>
> 2)lease4-get-all command is not giving the correct data, do we have any way
> or any other command where we can get the current active leases without
> having old ones?
>
> Thanks In Advance
> Kraishak
>
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