reuse_lease: lease age logs

[Surya Teja]

Hi Glenn
Thanks for reply but I have few basic doubts,
when only a small amount of the lease time has passed ---->
when can we see this type of situation ?
FYI: The lease time for the scopes is one hour in my config,
Do I need to add any config statement in dhcpd.conf or increase lease-time
to stabilize the environment

Thanks in advance

On Mon, Oct 28, 2019 at 1:41 PM <glenn.satchell at uniq.com.au> wrote:

> Hi Surya,
>
> It's a server optimisation for when only a small amount of the lease
> time has passed. Rather than go through the whole process to creatge a
> new lease and update the leases file, the server replies with the
> existing lease information and the time remaining. It makes no real
> difference to the client, but for a busy server it can save a lot of I/O
> and processing as the lease file doesn't need to be updated. It's
> probably unrelated to the one-lease-per-client setting.
>
> regards,
> Glenn
>
> On 2019-10-28 18:40, Surya Teja wrote:
> > Hi
> > In the log messages of the dhcpd I see few strange messages like
> > reuse_lease: lease age 173843 (secs) under 25% threshold, reply with
> > unaltered, existing lease for 192.168.1.6
> >  reuse_lease: lease age 713 (secs) under 25% threshold, reply with
> > unaltered, existing lease for 192.168.1.81
> >
> > Does any one has any idea what does this reuse lease means ?
> > Just FYI: I have added a statement one-lease-per-client true; to my
> > conf recently as i am facing no free lease issues because of roaming
> > clients, does this impact the environment and cause problem which
> > leading the above log messages?
> >
> > Thanks in advance
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