[Kea-users] Infinite lease not stored in postgresql DB

Laurent Aubert (laaubert) laaubert at cisco.com
Thu Jun 6 16:24:06 UTC 2019


Thanks Sten for your reply.

In our understanding the tool kea-admin lease-init, initialize the PostgresDB with the right schema defined for Kea

The way data is stored in PostgresDB is defined by Kea schema, which is defined here:
https://github.com/isc-projects/kea/blob/master/src/share/database/scripts/pgsql/dhcpdb_create.pgsql

Where valid_lifetime is define as:
valid_lifetime BIGINT,

And  according to PostgreSQL doc is:
bigint     8 bytes  large-range integer          -9223372036854775808 to +9223372036854775807

So is there a problem with the schema for PostgreSQL ?

Thanks,
Laurent.

From: Kea-users <kea-users-bounces at lists.isc.org> on behalf of Sten Carlsen <stenc at s-carlsen.dk>
Date: Thursday, June 6, 2019 at 5:20 PM
To: "kea-users at lists.isc.org" <kea-users at lists.isc.org>
Subject: Re: [Kea-users] Infinite lease not stored in postgresql DB


On 06/06/2019 13.02, Laurent Aubert (laaubert) wrote:
Hi,

We deployed KEA 1.5 with a postgresql DB without any issue. We have an application which asks for IP addresses with an infinite lease.

When KEA receives the request, we see the following error:

2019<tel:2019>-06-06 09:05:02.566 ERROR [kea-dhcp4.alloc-engine/259] ALLOC_ENGINE_V4_ALLOC_ERROR [hwtype=1 00:00:00:00:00:00], cid=[ff:00:00:00:00:00:02:00:00:00:09:01:10:49:52:38:30:39:47:2d:4c:54:45:2d:47:41:2d:4b:39:02:0
b:4a:4d:58:32:30:32:33:58:30:30:30], tid=0x8aed1f: error during attempt to allocate an IPv4 address: Could not create bind array from Lease4: 192.168.89.2<http://192.168.89.2>, reason: Time value is too large: 5854779197<tel:5854779197>
How is your definition of the lease time field in the database? this value requires 33 bits to be stored.


Everything works fine if we use csv file to store the leases instead of postgres.
Yes, not limited by a fixed number of bits.


Any idea why such leases can’t be stored in the DB ?


Sten

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