[Kea-users] Problems setting up HA

[Tan Mientras]

now, once the HA is running in load-balancing mode, seems only first node
is receiving/handling the DHCPDISCOVER messages, while 2 only does
lease4-update
is there a way to burst-test or to know whether load balancing is working
or not?

On Wed, Nov 9, 2022 at 12:07 PM Tan Mientras <tanimientras at gmail.com> wrote:

> yes. the issue was I wasn't using agents at all (only installed
> dhcp-server and hook libraries)
>
> On Wed, Nov 9, 2022 at 11:51 AM Peter Davies <peterd at isc.org> wrote:
>
>> Hi Tan,
>>     Does the "control-socket" definition in your kea-dhcp4 configuration
>> match
>> the "control-socket" definition in the /etc/kea-ctrl-agent.conf file?
>>
>> /Peter
>> On 09/11/2022 11.22, perl-list wrote:
>> > Are you running the control agent?  Mine shown below is for dhcp6, but
>> i'm sure the config is similar.
>> >
>> > $ /usr/sbin/kea-ctrl-agent -c /etc/kea-ctrl-agent.conf
>> >
>> > $ cat /etc/kea-ctrl-agent.conf
>> > {
>> >      "Control-agent": {
>> >          "http-host": "10.0.0.1",
>> >          "http-port": 8000,
>> >          "control-sockets": {
>> >              "dhcp6": {
>> >                  "socket-type": "unix",
>> >                  "socket-name": "/tmp/kea6-ctrl-socket"
>> >              }
>> >          }
>> >      }
>> > }
>> >
>> > ----- Original Message -----
>> >> From: "Tan Mientras" <tanimientras at gmail.com>
>> >> To: "kea-users" <kea-users at lists.isc.org>
>> >> Sent: Wednesday, November 9, 2022 2:39:44 AM
>> >> Subject: [Kea-users] Problems setting up HA
>> >> Hi
>> >> I'm having issues setting up the HA.
>> >> Once the servers are running the complain with:
>> >> Nov 9 08:29:59 vmdhcp01 kea-dhcp4[170994]: INFO DHCP4_STARTED Kea
>> DHCPv4 server
>> >> version 2.3.2 started
>> >> Nov 9 08:30:10 vmdhcp01 kea-dhcp4[170994]: WARN
>> >> HA_HEARTBEAT_COMMUNICATIONS_FAILED failed to send heartbeat to
>> vmdhcp02 ( [
>> >> http://192.168.120.253:8000/ | http://192.168.120.253:8000/ ] ):
>> Connection
>> >> refused
>> >> Nov 9 08:30:10 vmdhcp01 kea-dhcp4[170994]: WARN
>> HA_COMMUNICATION_INTERRUPTED
>> >> communication with vmdhcp02 is interrupted
>> >> Nov 9 08:30:10 vmdhcp01 kea-dhcp4[170994]: INFO HA_STATE_TRANSITION
>> server
>> >> transitions from WAITING to PARTNER-DOWN state, partner state is
>> UNDEFINED
>> >> Nov 9 08:30:10 vmdhcp01 kea-dhcp4[170994]: INFO
>> HA_LEASE_UPDATES_DISABLED lease
>> >> updates will not be sent to the partner while in PARTNER-DOWN state
>> >> Nov 9 08:30:10 vmdhcp01 kea-dhcp4[170994]: INFO HA_LOCAL_DHCP_ENABLE
>> local DHCP
>> >> service is enabled while the vmdhcp01 is in the PARTNER-DOWN state
>> >> vmdhcp01 and vmdhcp02 have similar configuration (except
>> this-server-name):
>> >> "hooks-libraries":[
>> >> {
>> >> "library":"/usr/lib/x86_64-linux-gnu/kea/hooks/libdhcp_ha.so",
>> >> "parameters":{
>> >> "high-availability": [{
>> >> "this-server-name": "vmdhcp01",
>> >> "mode": "load-balancing",
>> >> "heartbeat-delay": 10000,
>> >> "max-response-delay": 10000,
>> >> "max-ack-delay": 5000,
>> >> "max-unacked-clients": 0,
>> >> "delayed-updates-limit": 100,
>> >> "peers": [{
>> >> "name": "vmdhcp01",
>> >> "url": " [ http://192.168.120.254:8000/ | http://192.168.120.254:8000/
>> ] ",
>> >> "role": "primary",
>> >> "auto-failover": true
>> >> }, {
>> >> "name": "vmdhcp02",
>> >> "url": " [ http://192.168.120.253:8000/ | http://192.168.120.253:8000/
>> ] ",
>> >> "role": "secondary",
>> >> "auto-failover": true
>> >> }]
>> >> }]
>> >> }
>> >> }
>> >> ],
>> >> Anyone can help me?
>> >> --
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>> --
>>
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