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Check the permissions of the control socket on your server:</div>

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<li style="list-style-type: "- ";"><span>Confirm that the Kea control agent can read it</span></li><li style="list-style-type: "- ";">Confirm that SELinux is not denying the attempt<br>

</li></ul>

<div>Your control agent on the other server isn't configured to connect to the socket for dhcp4 on your primary server, correct?</div>

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<b>Eric Graham</b></div>

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<i>DevOps Specialist</i></div>

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<span style="font-size: 8pt;">Direct: 605.990.1859</span><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 8pt; color: rgb(0, 0, 0); background-color: rgba(0, 0, 0, 0);"></span><i><br>

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<i><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 8pt; color: rgb(0, 0, 0); background-color: rgba(0, 0, 0, 0);"></span></i><a href="mailto:eric.graham@vantagepnt.com" title="mailto:eric.graham@vantagepnt.com"><span style="font-size: 8pt;">Eric.Graham@vantagepnt.com</span></a><i><br>

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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Stefan G. Weichinger <lists@xunil.at><br>

<b>Sent:</b> Thursday, June 22, 2023 12:18 PM<br>

<b>To:</b> Eric Graham <eric.graham@vantagepnt.com>; kea-users@lists.isc.org <kea-users@lists.isc.org><br>

<b>Subject:</b> Re: [Kea-users] kea-2.2.0 - HA cluster - communication between stork and dhcp4 gets lost</font>

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<div class="PlainText">CAUTION: This email originated outside the organization. Do not click any links or attachments unless you have verified the sender.<br>

<br>

Am 22.06.23 um 16:35 schrieb Eric Graham:<br>

> Stefan,<br>

><br>

> What version of Stork are you using? I saw a similar issue<br>

> <<a href="https://gitlab.isc.org/isc-projects/stork/-/issues/792">https://gitlab.isc.org/isc-projects/stork/-/issues/792</a>> in 1.7.<br>

<br>

1.10.0<br>

<br>

> Do your Kea control agent logs show any issues during the event?<br>

<br>

Didn't find the time today to browse the logs.<br>

<br>

the problematic server adc1 logs something after the event in stork.<br>

<br>

stork displays<br>

<br>

<br>

2023-06-20 20:01:23 daemon [2] dhcp4 is unreachable<br>

<br>

kea-debug.log:<br>

<br>

2023-06-20 20:00:54.374 CEST INFO<br>

[kea-dhcp4.commands/664.140016487107008] COMMAND_RECEIVED Received<br>

command 'subnet4-list'<br>

2023-06-20 20:00:54.679 CEST INFO<br>

[kea-dhcp4.commands/664.140016487107008] COMMAND_RECEIVED Received<br>

command 'ha-heartbeat'<br>

2023-06-20 20:02:04.789 CEST INFO<br>

[kea-dhcp4.ha-hooks/664.140016487107008] HA_STATE_TRANSITION server<br>

transitions from HOT-STANDBY to WAITING state, partner state is PARTNER-DOWN<br>

2023-06-20 20:02:04.790 CEST INFO<br>

[kea-dhcp4.ha-hooks/664.140016487107008] HA_LEASE_UPDATES_DISABLED lease<br>

updates will not be sent to the partner while in WAITING state<br>

2023-06-20 20:02:04.790 CEST INFO<br>

[kea-dhcp4.ha-hooks/664.140016487107008] HA_LOCAL_DHCP_DISABLE local<br>

DHCP service is disabled while the adc1 is in the WAITING state<br>

2023-06-20 20:02:04.790 CEST INFO<br>

[kea-dhcp4.ha-hooks/664.140016487107008] HA_STATE_TRANSITION server<br>

transitions from WAITING to SYNCING state, partner state is PARTNER-DOWN<br>

2023-06-20 20:02:04.790 CEST INFO<br>

[kea-dhcp4.ha-hooks/664.140016487107008] HA_LEASE_UPDATES_DISABLED lease<br>

updates will not be sent to the partner while in SYNCING state<br>

2023-06-20 20:02:04.790 CEST INFO<br>

[kea-dhcp4.ha-hooks/664.140016487107008] HA_SYNC_START starting lease<br>

database synchronization with adc2<br>

2023-06-20 20:02:04.807 CEST INFO<br>

[kea-dhcp4.ha-hooks/664.140016487107008]<br>

HA_LEASES_SYNC_LEASE_PAGE_RECEIVED received 118 leases from adc2<br>

2023-06-20 20:02:04.809 CEST INFO<br>

[kea-dhcp4.ha-hooks/664.140016487107008] HA_SYNC_SUCCESSFUL lease<br>

database synchronization with adc2 completed successfully in 19.611 ms<br>

2023-06-20 20:02:04.809 CEST INFO<br>

[kea-dhcp4.ha-hooks/664.140016487107008] HA_STATE_TRANSITION server<br>

transitions from SYNCING to READY state, partner state is PARTNER-DOWN<br>

2023-06-20 20:02:04.810 CEST INFO<br>

[kea-dhcp4.ha-hooks/664.140016487107008] HA_LEASE_UPDATES_DISABLED lease<br>

updates will not be sent to the partner while in READY state<br>

2023-06-20 20:06:51.205 CEST INFO<br>

[kea-dhcp4.dhcpsrv/664.140016487107008] DHCPSRV_MEMFILE_LFC_START<br>

starting Lease File Cleanup<br>

2023-06-20 20:06:51.206 CEST INFO<br>

[kea-dhcp4.dhcpsrv/664.140016487107008] DHCPSRV_MEMFILE_LFC_EXECUTE<br>

executing Lease File Cleanup using: /usr/sbin/kea-lfc -4 -x<br>

/var/lib/kea/dhcp4.leases.2 -i /var/lib/kea/dhcp4.leases.1 -o<br>

/var/lib/kea/dhcp4.leases.output -f /var/lib/kea/dhcp4.leases.completed<br>

-p /var/lib/kea/dhcp4.leases.pid -c ignored-path<br>

2023-06-20 21:06:52.202 CEST INFO<br>

[kea-dhcp4.dhcpsrv/664.140016487107008] DHCPSRV_MEMFILE_LFC_START<br>

starting Lease File Cleanup<br>

2023-06-20 21:06:52.203 CEST INFO<br>

[kea-dhcp4.dhcpsrv/664.140016487107008] DHCPSRV_MEMFILE_LFC_EXECUTE<br>

executing Lease File Cleanup using: /usr/sbin/kea-lfc -4 -x<br>

/var/lib/kea/dhcp4.leases.2 -i /var/lib/kea/dhcp4.leases.1 -o<br>

/var/lib/kea/dhcp4.leases.output -f /var/lib/kea/dhcp4.leases.completed<br>

-p /var/lib/kea/dhcp4.leases.pid -c ignored-path<br>

2023-06-20 22:06:52.466 CEST INFO<br>

[kea-dhcp4.dhcpsrv/664.140016487107008] DHCPSRV_MEMFILE_LFC_START<br>

starting Lease File Cleanup<br>

2023-06-20 22:06:52.467 CEST INFO<br>

[kea-dhcp4.dhcpsrv/664.140016487107008] DHCPSRV_MEMFILE_LFC_EXECUTE<br>

executing Lease File Cleanup using: /usr/sbin/kea-lfc -4 -x<br>

/var/lib/kea/dhcp4.leases.2 -i /var/lib/kea/dhcp4.leases.1 -o<br>

/var/lib/kea/dhcp4.leases.output -f /var/lib/kea/dhcp4.leases.completed<br>

-p /var/lib/kea/dhcp4.leases.pid -c ignored-path<br>

2023-06-20 23:06:53.457 CEST INFO<br>

[kea-dhcp4.dhcpsrv/664.140016487107008] DHCPSRV_MEMFILE_LFC_START<br>

starting Lease File Cleanup<br>

<br>

The other server only says:<br>

<br>

2023-06-20 20:01:04.701 CEST WARN<br>

[kea-dhcp4.ha-hooks/291908.140125778662080] HA_HEARTBEAT_FAILED<br>

heartbeat to adc1 (<a href="http://10.0.0.231:8000/">http://10.0.0.231:8000/</a>) failed: unable to forward<br>

command to the dhcp4 service: No such file or directory. The server is<br>

likely to be offline, error code 1<br>

<br>

<br>

<br>

<br>

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