Peer rebalancing problems

[Chris Buxton]

You may also need to clean up the dhcpd.leases file, to remove failover-related states and such.

Regards,
Chris Buxton

> On Sep 3, 2019, at 1:07 PM, Norman Elton <normelton at gmail.com> wrote:
> 
> Just to confirm ... remove the failover declaration from one server,
> and the entire subnet from the other server?
> 
> Norman
> 
> On Tue, Sep 3, 2019 at 4:02 PM Bob Harold <rharolde at umich.edu> wrote:
>> 
>> I remove the subnet from failover, so it only has one DHCP server, then after the servers settle, add failover back in.  It is a pain, but I have not found a better solution.
>> 
>> --
>> Bob Harold
>> 
>> 
>> 
>> On Tue, Sep 3, 2019 at 3:44 PM Norman Elton <normelton at gmail.com> wrote:
>>> 
>>> Sorry, I just discovered this nugget:
>>> 
>>> landlord01: peer wm-dhcp-01-02: Got POOLREQ, answering negatively!
>>> Peer may be out of leases or database inconsistent.
>>> 
>>> I will start googling and post if I discover anything.
>>> 
>>> Thanks,
>>> 
>>> Norman
>>> 
>>> On Tue, Sep 3, 2019 at 3:41 PM Norman Elton <normelton at gmail.com> wrote:
>>>> 
>>>> I've seen references to this in previous posts, but no clear
>>>> resolution. I've got two RHEL6 boxes (dhcp-4.1.1-63.P1.el6_10) setup
>>>> in a failover pair. I discovered this morning that one server was
>>>> stuck in "communications-interrupted" state. Turns out there were two
>>>> dhcpd processes running simultaneously. Not sure how that happened,
>>>> but shockingly, it wasn't happy.
>>>> 
>>>> I've restarted both servers, we're back in normal failover state. But
>>>> one of my subnets is still not balancing out:
>>>> 
>>>> landlord01: balancing pool 55814b7e0ad0 WIRELESS-FACSTAFF  total 2970
>>>> free 58  backup 320  lts -131  max-own (+/-)38
>>>> landlord01: balanced pool 55814b7e0ad0 WIRELESS-FACSTAFF  total 2970
>>>> free 58  backup 320  lts -131  max-misbal 57
>>>> landlord02: balancing pool 55d8e05a4aa0 WIRELESS-FACSTAFF  total 2970
>>>> free 353  backup 0  lts -176  max-own (+/-)35  (requesting peer
>>>> rebalance!)
>>>> landlord02: balanced pool 55d8e05a4aa0 WIRELESS-FACSTAFF  total 2970
>>>> free 353  backup 0  lts -176  max-misbal 53
>>>> 
>>>> It seems a little strange that both servers have a negative LTS value.
>>>> And that they're so different. Is this explainable somehow?
>>>> 
>>>> Thanks,
>>>> 
>>>> Norman
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