It was a timezone issue. Both ends now on the same Timezone and Kea is now re-issuing addresses.
Thank you. Gordon. From: Razvan Becheriu <[email protected]> Date: Wednesday, 7 July 2021 at 19:37 To: Jeronimo <[email protected]> Cc: Gordon Ross <[email protected]>, [email protected] <[email protected]> Subject: Re: [Kea-users] Unable to re-allocate address Hi, Can you check that your system/kea and the database back-end use the same timezone? The timezones should match and should be set to UTC. Thank you, Razvan ________________________________ From: "Jeronimo" <[email protected]> To: "Gordon Ross" <[email protected]> Cc: [email protected] Sent: Wednesday, July 7, 2021 8:11:49 PM Subject: Re: [Kea-users] Unable to re-allocate address Follow my configuration: kea-dhcp4.conf: { "Dhcp4": { "authoritative": false, "boot-file-name": "", "calculate-tee-times": false, "control-socket": { "socket-name": "/tmp/kea4-ctrl-socket", "socket-type": "unix" }, "ddns-generated-prefix": "myhost", "ddns-override-client-update": false, "ddns-override-no-update": false, "ddns-qualifying-suffix": "", "ddns-replace-client-name": "never", "ddns-send-updates": true, "decline-probation-period": 86400, "dhcp-ddns": { "enable-updates": false, "max-queue-size": 1024, "ncr-format": "JSON", "ncr-protocol": "UDP", "sender-ip": "0.0.0.0", "sender-port": 0, "server-ip": "127.0.0.1", "server-port": 53001 }, "dhcp-queue-control": { "capacity": 64, "enable-queue": false, "queue-type": "kea-ring4" }, "dhcp4o6-port": 0, "echo-client-id": true, "expired-leases-processing": { "flush-reclaimed-timer-wait-time": 25, "hold-reclaimed-time": 3600, "max-reclaim-leases": 100, "max-reclaim-time": 250, "reclaim-timer-wait-time": 10, "unwarned-reclaim-cycles": 5 }, "hooks-libraries": [ ], "host-reservation-identifiers": [ "hw-address", "duid", "circuit-id", "client-id" ], "hostname-char-replacement": "", "hostname-char-set": "[^A-Za-z0-9.-]", "interfaces-config": { "interfaces": [ "ens3" ], "re-detect": true }, "lease-database": { "host": "dbhost.localdomin", "name": "dbname", "password": "secret", "port": 5432, "type": "postgresql", "user": "dbuser" }, "loggers": [ { "debuglevel": 99, "name": "kea-dhcp4", "output_options": [ { "output": "/usr/local/var/log/kea-dhcp4.log" } ], "severity": "INFO" } ], "match-client-id": true, "multi-threading": { "enable-multi-threading": false, "packet-queue-size": 64, "thread-pool-size": 0 }, "next-server": "0.0.0.0", "option-data": [ ], "option-def": [ ], "rebind-timer": 2000, "renew-timer": 1000, "reservation-mode": "all", "sanity-checks": { "lease-checks": "warn" }, "server-hostname": "", "server-tag": "", "shared-networks": [ ], "statistic-default-sample-age": 0, "statistic-default-sample-count": 20, "store-extended-info": false, "subnet4": [ { "4o6-interface": "", "4o6-interface-id": "", "4o6-subnet": "", "calculate-tee-times": false, "id": 1, "option-data": [ ], "pools": [ { "option-data": [ ], "pool": "192.168.0.10-192.168.0.13" } ], "rebind-timer": 2000, "relay": { "ip-addresses": [ ] }, "renew-timer": 1000, "reservations": [ { "boot-file-name": "", "client-classes": [ ], "hostname": "", "hw-address": "00:50:01:00:01:00", "ip-address": "192.168.0.12", "next-server": "0.0.0.0", "option-data": [ ], "server-hostname": "" } ], "store-extended-info": false, "subnet": "192.168.0.0/24<https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2F192.168.0.0%2F24&data=04%7C01%7Cgr306%40cam.ac.uk%7C2e515da586864944212708d94176250c%7C49a50445bdfa4b79ade3547b4f3986e9%7C0%7C0%7C637612798525525818%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000&sdata=dRgA8%2FrB48B8Bz1ONigbFg7onZYutYv3tEDkrEyhK3o%3D&reserved=0>", "t1-percent": 0.5, "t2-percent": 0.875, "valid-lifetime": 4000 } ], "t1-percent": 0.5, "t2-percent": 0.875, "valid-lifetime": 4000 } } Regards, Jerônimo Em qua., 7 de jul. de 2021 às 03:42, Gordon Ross <[email protected]<mailto:[email protected]>> escreveu: My configuration is very simple. There are no hooks, no HA, no multi-threading, no fancy commands. Postgres version is 12.7 Gordon. On 06/07/2021, 19:27, "Marcin Siodelski" <[email protected]<mailto:[email protected]>> wrote: Gordon, Thanks for posting your issue to the Kea users list. I will try to replicate your issue tomorrow with the Postgres lease database backend. It will be super useful if you send me your Kea configuration file. You can sanitize it from any private stuff it may contain. Please send it to me privately if it can't be posted to the mail list. If it is not possible, please describe the major parts of the configuration, e.g. is multi threading on or off, are you using any hooks libraries (e.g. lease cmds?), are you sending any commands to Kea that can possibly modify the lease information? Finally, please provide your Postgres database version. Kind Regards, Marcin Siodelski DHCP Software Engineer, ISC On 06.07.2021 18:28, Gordon Ross wrote: > On the off chance, I tried an upgrade to Kea 1.9.9 and the problem persists. > > Gordon. > > On 05/07/2021, 16:16, "Kea-users on behalf of Gordon Ross" <[email protected]<mailto:[email protected]> on behalf of [email protected]<mailto:[email protected]>> wrote: > > I'm running Kea 1.8.2 using the Postgres lease database backend on Ubuntu 20.04 LTS > > Devices can get a new IPv4 address fine. But when they try to renew their address, it fails and the logs show: > > ALLOC_ENGINE_V4_ALLOC_ERROR [hwtype=1 00:21:55:02:67:14], cid=[01:00:21:55:02:67:14], tid=0x58cd: error during attempt to allocate an IPv4 address: unable to update lease for address 172.18.5.4 as it does not exist > > If I delete the entry from the leases table, Kea then happily re-issues the address. (I can perform the DELETE as the Kea DB user so no permissions problems there) > > I saw an earlier post about an error in Kea 1.8 & HA, but I'm not running HA at the moment - and I'm on a later version of Kea. > > Is this bug still outstanding in 1.8.2? > > Thank you, > > Gordon > -- > Gordon Ross > University of Cambridge > > _______________________________________________ > ISC funds the development of this software with paid support subscriptions. 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