[Kea-users] HA Load Balancing: HA_BUFFER4_RECEIVE_NOT_FOR_US Issue

[Derek Swank]

Hello,

I am setting up a Kea server in a load balancing HA configuration. I am experiencing an issue where I am getting the error: "HA_BUFFER4_RECEIVE_NOT_FOR_US: dropping query to be processed by another server"

Here is an exact line from my Kea HA hooks log:
"2025-03-20 16:45:28.365 DEBUG [kea-dhcp4.ha-hooks/64143.140171193816768] HA_BUFFER4_RECEIVE_NOT_FOR_US [hwtype=1 00:50:56:bb:e1:9c], cid=[no info], tid=0xffbd0305: dropping query to be processed by another server"

Here is my HA configuration:

{
        "library": "/usr/lib/x86_64-linux-gnu/kea/hooks/libdhcp_ha.so",
        "parameters": {
            "high-availability": [{
                "this-server-name": "server1",
                "mode": "load-balancing",
                "heartbeat-delay": 10000,
                "max-response-delay": 60000,
                "max-ack-delay": 5000,
                "max-unacked-clients": 3,
                "max-rejected-lease-updates": 10,
                "delayed-updates-limit": 100,
                "peers": [{
                    //BEGIN server1
                    "name": "server1",
                    "url": "http://172.16.120.3:8000/",
                    "role": "primary",
                    "auto-failover": true
                    //END
                }, {
                    //BEGIN server2
                    "name": "server2",
                    "url": "http://172.16.120.4:8000/",
                    "role": "secondary",
                    "auto-failover": true
                    //END
                }, {
                    //BEGIN server3
                    "name": "server3",
                    "url": "http://172.16.120.5:8000/",
                    "role": "backup",
                    "auto-failover": false
                    //END
                }]
            }]
        }


All servers have the same configuration, other than "this-server-name".


Derek Swank

Systems Engineer

[cid:3d0033dd-59b6-43be-ac01-f4c675156d74]<https://dfn.net/>

Main: 541-673-4242

2350 NW Aviation Dr

Roseburg, OR 97470

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