balanced pool logs

[glenn.satchell at uniq.com.au]

Hi Kraishak

What settings do you have in the failover peer statement on the two 
servers? Can you paste the whole statement into the email please?

There is a discussion of the relevant settings in the dhcpd.conf man 
page, look for the section "The Failover pool balance statements". 
Perhaps if you have non-default settings for those values mentioned it 
may skew the algorithm. Usually the defaults are a pretty good option, 
and only change them if there is a specific problem.

regards,
-glenn

On 2019-10-30 01:45, Kraishak Mahtha wrote:
> Do we have any internal schedule thread to do balancing pools? or any
> option that controls the behaviour of this balancing pools process
> Just want to know what will be triggering the dhcpd to perform the
> pool balance that frequently
> 
> On Mon, Oct 28, 2019 at 12:24 PM Kraishak Mahtha
> <kraishak.edu at gmail.com> wrote:
> 
>> Hi
>> I am running the isc dhcpd in primary-failover mode with 50:50
>> percent on my two different lab environments with a test tool, I am
>> seeing the balancing pool messages so frequently in the lab-1
>> environments
>> EX:
>> Oct 25 08:40:11 server1 dhcpd[446460]: balanced pool 1c9be20
>> 192.168.0.0/24 [1]  total 229  free 63  backup 64  lts 0  max-misbal
>> 19
>> Oct 25 08:40:11 server1 dhcpd[446460]: balancing pool 1c88680
>> 192.168.3.0/24 [2]  total 213  free 42  backup 42  lts 0  max-own
>> (+/-)8
>> Oct 25 08:40:11 server1 dhcpd[446460]: balanced pool 1c88680
>> 192.168.6.0/24 [3]  total 213  free 42  backup 42  lts 0  max-misbal
>> 13
>> Oct 25 08:40:11 server1 dhcpd[446460]: balancing pool 1c740b0
>> 192.168.101.0/24 [4]  total 225  free 110  backup 109  lts 0
>> max-own (+/-)22
>> 
>> - - - - - - - - - - - - and so on
>> These logs are printing  for one to two seconds duration totally, at
>> this time I am not seeing any dhcp traffic logs like discover,
>> offer, renew (yes it is less duration of two seconds no need to
>> worry but just want to make sure, is the dhcp server wont serve the
>> lease for the clients while it balancing the pools ?)
>> In the second lab (lab-2) I see these messages but not that
>> frequent of which i see on lab-1,
>> Does one have any idea that, In general do we have any fixed time
>> interval at which the dhcpd server balance the pools ?just want to
>> know why i am getting the these logs so frequently in lab-1
>> 
>> Thanks in advance
> 
> 
> Links:
> ------
> [1] http://192.168.0.0/24
> [2] http://192.168.3.0/24
> [3] http://192.168.6.0/24
> [4] http://192.168.101.0/24
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