[Kea-users] For most of the hosts, NCRs are created but never sent. Why?

[Jan Sielemann]

dc ~ # grep "NCR" /var/log/kea-dhcp4.log
2019-05-11 01:21:19.663 DEBUG [kea-dhcp4.ddns/28034] DHCP4_NCR_CREATE
[hwtype=1 00:1b:a9:7e:07:70], cid=[01:00:1b:a9:7e:07:70],
tid=0xbb780000: DDNS updates enabled, therefore sending name change requests
2019-05-11 01:21:41.889 DEBUG [kea-dhcp4.dhcpsrv/28034]
DHCPSRV_QUEUE_NCR [hwtype=1 00:0b:82:d0:b7:e1],
cid=[01:00:0b:82:d0:b7:e1]: name change request to remove DNS entry
queued: Type: 1 (CHG_REMOVE)
2019-05-11 01:21:41.889 DEBUG [kea-dhcp4.dhcpsrv/28034]
DHCPSRV_DHCP_DDNS_NCR_SENT NameChangeRequest sent to kea-dhcp-ddns:
Type: 1 (CHG_REMOVE)
2019-05-11 01:22:26.957 DEBUG [kea-dhcp4.ddns/28034] DHCP4_NCR_CREATE
[hwtype=1 00:1b:a9:7e:07:70], cid=[01:00:1b:a9:7e:07:70],
tid=0x5dbc0000: DDNS updates enabled, therefore sending name change requests
2019-05-11 01:22:44.399 DEBUG [kea-dhcp4.ddns/28034] DHCP4_NCR_CREATE
[hwtype=1 00:0b:82:d0:b7:e1], cid=[01:00:0b:82:d0:b7:e1],
tid=0x1c07833f: DDNS updates enabled, therefore sending name change requests
2019-05-11 01:22:44.400 DEBUG [kea-dhcp4.dhcpsrv/28034]
DHCPSRV_QUEUE_NCR [hwtype=1 00:0b:82:d0:b7:e1],
cid=[01:00:0b:82:d0:b7:e1]: name change request to add DNS entry queued:
Type: 0 (CHG_ADD)
2019-05-11 01:22:44.400 DEBUG [kea-dhcp4.dhcpsrv/28034]
DHCPSRV_DHCP_DDNS_NCR_SENT NameChangeRequest sent to kea-dhcp-ddns:
Type: 0 (CHG_ADD)
2019-05-11 01:22:59.834 DEBUG [kea-dhcp4.ddns/28034] DHCP4_NCR_CREATE
[hwtype=1 60:a4:4c:59:73:df], cid=[no info], tid=0xd4aab95e: DDNS
updates enabled, therefore sending name change requests
2019-05-11 01:25:17.920 DEBUG [kea-dhcp4.ddns/28034] DHCP4_NCR_CREATE
[hwtype=1 b8:27:eb:b2:5a:01],
cid=[ff:eb:b2:5a:01:00:01:00:01:c7:92:bc:9d:b8:27:eb:28:58:06],
tid=0xe78cbce4: DDNS updates enabled, therefore sending name change requests
2019-05-11 01:26:54.466 DEBUG [kea-dhcp4.ddns/28034] DHCP4_NCR_CREATE
[hwtype=1 00:1b:fe:04:1d:c6], cid=[01:00:1b:fe:04:1d:c6],
tid=0x884a3c34: DDNS updates enabled, therefore sending name change requests

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