[Kea-users] ALLOC_ENGINE_V6_ALLOC_NO_LEASES_HR and ALLOC_ENGINE_V6_ALLOC_UNRESERVED

[Veronique.Lefebure at cern.ch]

Replying to myself:



The problem has been solved by deleting the lease files which was containing stale lease information from previous tests.


Is there a tool that an admin can use to remove stale entries from a lease file ?


By the way, I have tries to use kea-admin to have a look at the leases but it exists with:


kea-admin lease-dump memfile
ERROR/kea-admin: lease-dump is not supported for memfile



While the help says:



Usage: /usr/sbin/kea-admin COMMAND BACKEND [parameters]


COMMAND: Currently supported operations are:
- db-init: Initializes new database. Useful for first time installation.
- db-version: Checks version of the existing database schema. Useful
- for checking database version when preparing for an upgrade.
- db-upgrade: Upgrades your database schema.
- lease-dump: Dumps current leases to a memfile-ready CSV file.
- lease-upload: Uploads leases from a CSV file to the database.
- stats-recount: Recounts lease statistics.


BACKEND - one of the supported backends: memfile|mysql|pgsql


Is "memfile" really supported ?


Thanks,
Veronique

> On 21/06/2022 16:59 Veronique Lefebure <veronique.lefebure at cern.ch> wrote:
> 
> 
> 
> 
> Hi,
> Out test client is failing to get an IPv6 IP.
> Enabling debug logs, we see messages from the server that seem contradictory:
> 
> 2022-06-21 16:43:50.948 DEBUG [kea-dhcp6.alloc-engine/13499.139838611867840] ALLOC_ENGINE_V6_ALLOC_NO_LEASES_HR no leases found but reservations exist for client duid=[00:01:00:01:2a:44:7a:5c:xx:xx:xx:xx:xx:xx], tid=0x93e611 2022-06-21 16:43:50.948 DEBUG [kea-dhcp6.alloc-engine/13499.139838611867840] ALLOC_ENGINE_V6_ALLOC_UNRESERVED no static reservations available - trying to dynamically allocate leases for client duid=[00:01:00:01:2a:44:7a:5c:xx:xx:xx:xx:xx:xx], tid=0x93e611
> 
> where xx:xx:xx:xx:xx:xx is the client mac address.
> How can that happen ?
> 
> Kea has correctly identified the subnet where the client reservation is defined:
> 2022-06-21 16:43:50.947 DEBUG [kea-dhcp6.packets/13499.139838611867840] DHCP6_SUBNET_SELECTED duid=[00:01:00:01:2a:44:7a:5c:xx:xx:xx:xx:xx:xx], tid=0x93e611: the subnet with ID 2156789248 was selected for client assignments
> 
> Thanks for helping.
> Veronique --
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