Getting Peer hold all free leases

[Kraishak Mahtha]

Hi  Abdul Khader,

I have declared as follows:

Configuration file from primary
=========================
failover peer "peer-host" {
        primary;
        address 192.168.56.156;
        port 647;
        peer address 192.168.56.178;
        peer port 647;
        max-response-delay 30;
        max-unacked-updates 30;
        load balance max seconds 3;
        mclt 1800;
        split 128;
}
subnet 192.168.56.0 netmask 255.255.255.0 {
        pool {
                failover peer "peer-host";
                range 192.168.56.5 192.168.56.54;
        }
                option domain-name "test.com";
                option routers 192.168.56.1;
                option subnet-mask 255.255.255.0;
        }

Configuration file from failover
======================
failover peer "peer-host" {
        secondary;
        address 192.168.56.178;
        port 647;
        peer address 192.168.56.156;
        peer port 647;
        max-response-delay 30;
        max-unacked-updates 30;
        load balance max seconds 3;
}
subnet 192.168.56.0 netmask 255.255.255.0 {
        pool {
                failover peer "peer-host";
                range 192.168.56.5 192.168.56.54;
        }
                option domain-name "test.com";
                option routers 192.168.56.1;
                option subnet-mask 255.255.255.0;
        }

On the primary log it shows as :* total 50  free 0  backup 0*
*Aug 17 17:15:48 dhcp1 dhcpd[12130]: peer peer-host: Got POOLREQ, answering
negatively!  Peer may be out of leases or database inconsistent.*

but in the failover log it shows as
Aug 17 17:14:48 dhcp2 dhcpd[1902]: balancing pool bf05b0
192.168.56.0/24  *total
50  free 50  backup 0  lts -25  max-own (+/-)5 * (requesting peer
rebalance!)
Aug 17 17:14:48 dhcp2 dhcpd[1902]: balanced pool bf05b0 192.168.56.0/24  total
50  free 50  backup 0  lts -25  max-misbal 8
 pool response: 0 leases

because of some reason the pool is not getting balanced between the primary
and failover


Also I have a problem in tracking my thread previously from
*http://isc-dhcp-users
<http://isc-dhcp-users>* link I used to track and reply but now it is not
working, and tried searching the other links I found this
*https://lists.isc.org/pipermail/dhcp-users/
<https://lists.isc.org/pipermail/dhcp-users/> *to track but I cannot see a
reply option in that web page



On Tue, Aug 17, 2021 at 5:41 PM Kraishak Mahtha <kraishak.edu at gmail.com>
wrote:

> Hi,
> I am using ISC DHCP in primary and failover mode and I am getting issue
> that clients are not getting leases and when I checked for the service logs
> I see as
> Primary Logs:
> ==========
> Aug 17 17:15:48 dhcp1 dhcpd[12130]: balancing pool f6f5f0 192.168.56.0/24
>  total 50  free 0  backup 0  lts 0  max-own (+/-)0
> Aug 17 17:15:48 dhcp1 dhcpd[12130]: balanced pool f6f5f0 192.168.56.0/24
>  total 50  free 0  backup 0  lts 0  max-misbal 0
> Aug 17 17:15:48 dhcp1 dhcpd[12130]: peer peer-host: Got POOLREQ, answering
> negatively!  Peer may be out of leases or database inconsistent.
>
> Failover Logs
> ==========
> Aug 17 17:14:48 dhcp2 dhcpd[1902]: balancing pool bf05b0 192.168.56.0/24
>  total 50  free 50  backup 0  lts -25  max-own (+/-)5  (requesting peer
> rebalance!)
> Aug 17 17:14:48 dhcp2 dhcpd[1902]: balanced pool bf05b0 192.168.56.0/24
>  total 50  free 50  backup 0  lts -25  max-misbal 8
>  pool response: 0 leases
>
> I tried searching the forums and many of them suggested that there might
> be inconsistency between the configuration file and leases database, I
> cross verified the configs they are good and regarding the leases file can
> we manually do any operation to make them in sync ?
>
> I tried checking the status of the primary and failover in the lease file
> but they are in normal-normal,
> cat dhcpd.leases | egrep "my state|partner state" | tail -2
>   my state normal at 2 2021/08/17 16:41:09;
>   partner state normal at 2 2021/08/17 17:01:17;
>
> Has anyone faced a similar issue/Any suggestions of how to fix the issue,
> Can we manually send requests for the DHCP service to do the pool balance
> and sync the leases for that specific subnet ?
>
>
> Any help/suggestion would be much appreciated
> Thanks
> Kraishak
>
>
>
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