[Kea-users] IP leases split across files

Thu Apr 3 12:47:47 UTC 2025

Thanks Peter,

While looking into something else, I just found this, which was very helpful as well - explaining why the 2nd file is there: https://kea.readthedocs.io/en/latest/arm/dhcp4-srv.html#why-is-lease-file-cleanup-necessary

Jason Creviston
Sr. Network Administrator

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From: Kea-users <kea-users-bounces at lists.isc.org> on behalf of Peter Davies <peterd at isc.org>
Sent: Thursday, April 3, 2025 12:42 AM
To: kea-users at lists.isc.org <kea-users at lists.isc.org>
Subject: Re: [Kea-users] IP leases split across files

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Hi Jason,
   This file is created by the lease file cleanup process (LFC).

You can read more about this in the Kea ARM.
See: https://kea.readthedocs.io/en/kea-2.7.7/arm/lfc.html#the-lfc-process

Peter

On 02/04/2025 16.42, Jason Creviston wrote:
Does anyone know why this happens?

Yesterday there were no leases in the kea-leases4.csv file (only headers), this morning there are a handful, and their expiry times are for tomorrow - which would be correct if they just renewed or acquired them. Their corresponding lease entries in kea-leases4.csv.2 are expired as of this morning, except one that expires in about three hours. Mac addresses and all other info is consistent across files (aside from expiry epoch).

On a related note: I've no idea how the 2nd file even gets created. While testing, before rolling out to production, I'd noticed this and deleted the "csv.2" versions, but they always come back.

-rw-r--r--  1 _kea _kea   1653 Apr  2 14:16 kea-leases4.csv
-rw-r--r--  1 _kea _kea  28329 Apr  2 13:50 kea-leases4.csv.2
-rw-r--r--  1 _kea _kea    377 Apr  2 13:40 kea-leases6.csv
-rw-r--r--  1 _kea _kea   1532 Apr  2 13:35 kea-leases6.csv.2

Thanks,

Jason Creviston
Sr. Network Administrator

P: 765-795-9305               2 S. West Street – P.O. Box 237, Cloverdale, IN 46120
Book an appointment with me!<https://outlook.office365.com/owa/calendar/JasonCreviston@weendeavor.com/bookings/>

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Peter Davies
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