Kea database cluster issue
when we are using in postgres database cluster (Syn and async) for kea dhcp server then it will showing the error message and also remove the ip address when lease has been expired but when we are using single node database(without cluster) it is perfectly fine. My database service and dhcp service are up. What is issue? please help....
Jan 06 17:22:04 stag-kea-dhcp.nic.in kea-dhcp4[3999]: INFO DHCP4_LEASE_ADVERT [hwtype=1 c0:3f:d5:46:32:48], cid=[01:c0:3f:d5:46:32:48>
Jan 06 17:22:04 stag-kea-dhcp.nic.in kea-dhcp4[3999]: ERROR ALLOC_ENGINE_V4_ALLOC_ERROR [hwtype=1 c0:3f:d5:46:32:48], cid=[01:c0:3f:d5>
Jan 06 17:22:04 stag-kea-dhcp.nic.in kea-dhcp4[3999]: INFO DHCP4_LEASE_ADVERT [hwtype=1 c0:3f:d5:46:32:48], cid=[01:c0:3f:d5:46:32:48>
Jan 06 17:22:04 stag-kea-dhcp.nic.in kea-dhcp4[3999]: ERROR ALLOC_ENGINE_V4_ALLOC_ERROR [hwtype=1 c0:3f:d5:46:32:48], cid=[01:c0:3f:d5>
Jan 06 17:22:04 stag-kea-dhcp.nic.in kea-dhcp4[3999]: INFO DHCP4_LEASE_ADVERT [hwtype=1 c0:3f:d5:46:32:48], cid=[01:c0:3f:d5:46:32:48>
Jan 06 17:22:04 stag-kea-dhcp.nic.in kea-dhcp4[3999]: ERROR ALLOC_ENGINE_V4_ALLOC_ERROR [hwtype=1 c0:3f:d5:46:32:48], cid=[01:c0:3f:d5>
Jan 06 17:22:04 stag-kea-dhcp.nic.in kea-dhcp4[3999]: INFO DHCP4_LEASE_ADVERT [hwtype=1 c0:3f:d5:46:32:48], cid=[01:c0:3f:d5:46:32:48>
Jan 06 17:22:04 stag-kea-dhcp.nic.in kea-dhcp4[3999]: ERROR ALLOC_ENGINE_V4_ALLOC_ERROR [hwtype=1 c0:3f:d5:46:32:48], cid=[01:c0:3f:d5>
Jan 06 17:22:04 stag-kea-dhcp.nic.in kea-dhcp4[3999]: INFO DHCP4_LEASE_ADVERT [hwtype=1 c0:3f:d5:46:32:48], cid=[01:c0:3f:d5:46:32:48>
Jan 06 17:22:04 stag-kea-dhcp.nic.in kea-dhcp4[3999]: ERROR ALLOC_ENGINE_V4_ALLOC_ERROR [hwtype=1 c0:3f:d5:46:32:48], cid=[01:c0:3f:d5>```