failover issue?

Bob Harold rharolde at umich.edu
Thu Apr 2 15:26:15 UTC 2015


I have found that the "peer holds all free leases" is a catch-all that can
also mean "it did not match the allow members of ... or some other
restriction on the dhcp range".



-- 
Bob Harold
hostmaster, UMnet, ITcom
Information and Technology Services (ITS)
rharolde at umich.edu
734-647-6524 desk

On Thu, Apr 2, 2015 at 6:52 AM, Christian Bösch <boesch at fhv.at> wrote:

> Hi,
>
> I have a pair of failover dhcp servers (4.2.4) which work fine for a long
> time.
> Now I added some subnets (same config like the old working one) and in that
> subnets I get on both servers:
>
> Apr  2 12:44:52 dns1 dhcpd: DHCPDISCOVER from 3c:97:0e:b8:6d:40 via
> 172.21.166.1: peer holds all free leases
> Apr  2 12:44:52 dns1 dhcpd: DHCPDISCOVER from 3c:97:0e:b8:6d:40 via
> 172.21.166.1: peer holds all free leases
> Apr  2 12:44:56 dns1 dhcpd: DHCPDISCOVER from 3c:97:0e:b8:6d:40 via
> 172.21.166.1: peer holds all free leases
> Apr  2 12:44:56 dns1 dhcpd: DHCPDISCOVER from 3c:97:0e:b8:6d:40 via
> 172.21.166.1: peer holds all free leases
>
>
> Apr  2 12:44:52 dns2 dhcpd: DHCPDISCOVER from 3c:97:0e:b8:6d:40 via
> 172.21.166.1: peer holds all free leases
> Apr  2 12:44:52 dns2 dhcpd: DHCPDISCOVER from 3c:97:0e:b8:6d:40 via
> 172.21.166.1: peer holds all free leases
> Apr  2 12:44:56 dns2 dhcpd: DHCPDISCOVER from 3c:97:0e:b8:6d:40 via
> 172.21.166.1: peer holds all free leases
> Apr  2 12:44:56 dns2 dhcpd: DHCPDISCOVER from 3c:97:0e:b8:6d:40 via
> 172.21.166.1: peer holds all free leases
>
> But the pool seems to be well balanced:
>
> Apr  2 12:43:56 dns1 dhcpd: balancing pool 8019f8880 172.21.166.0/24
> total 250  free 125  backup 125  lts 0  max-own (+/-)25
> Apr  2 12:43:56 dns1 dhcpd: balanced pool 8019f8880 172.21.166.0/24
> total 250  free 125  backup 125  lts 0  max-misbal 38
>
> Apr  2 12:43:56 dns2 dhcpd: balancing pool 8019ef880 172.21.166.0/24
> total 250  free 125  backup 125  lts 0  max-own (+/-)25
> Apr  2 12:43:56 dns2 dhcpd: balanced pool 8019ef880 172.21.166.0/24
> total 250  free 125  backup 125  lts 0  max-misbal 38
>
> Does anyone have an idea what could be the reason for that?
> Thanks,
> Chris
>
>
>
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