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Today's Topics:

   1. Getting Peer hold all free leases (Kraishak Mahtha)
   2. Re: Getting Peer hold all free leases (Abdul Khader)
   3. Re: Getting Peer hold all free leases (Kraishak Mahtha)


----------------------------------------------------------------------

Message: 1
Date: Tue, 17 Aug 2021 17:41:16 +0530
From: Kraishak Mahtha <kraishak....@gmail.com>
To: dhcp-users@lists.isc.org
Subject: Getting Peer hold all free leases
Message-ID:
        <CADDat86CcVV-id1_Nn9V0LBO7ybwv2wqd0_UEhqvw=b3_u2...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

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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Message: 2
Date: Tue, 17 Aug 2021 16:33:02 +0400
From: Abdul Khader <akha...@gmail.com>
To: Users of ISC DHCP <dhcp-users@lists.isc.org>
Subject: Re: Getting Peer hold all free leases
Message-ID:
        <caeqab27uepwkcnjd7xsfgsmgaqc-0et6y7_qa5g5ke_en-z...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

What is pool utilization? In the log it shows total 50 free 0 backup 0.
What is the range you declared ?

Regards

On Tue, 17 Aug 2021, 16:11 Kraishak Mahtha, <kraishak....@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
>
>
> _______________________________________________
> ISC funds the development of this software with paid support
> subscriptions. Contact us at https://www.isc.org/contact/ for more
> information.
>
> dhcp-users mailing list
> dhcp-users@lists.isc.org
> https://lists.isc.org/mailman/listinfo/dhcp-users
>
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Message: 3
Date: Tue, 17 Aug 2021 18:41:05 +0530
From: Kraishak Mahtha <kraishak....@gmail.com>
To: dhcp-users@lists.isc.org, akha...@gmail.com
Subject: Re: Getting Peer hold all free leases
Message-ID:
        <caddat86xrhjj6tz_zcz9wkz9dttk_p+hgqmq38j8gyujyhm...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

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....@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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