Lease binding state update triggers?

[Luis Fernando Lacayo]

Good Morning all, 

I had this happened to me on a few of my networks, What I did was to
reduce the lease time, and when all the leases which had a longer lease
expired, I saw it happened a lot less.  It still happens but not as
frequent. 


On Wed, 2008-08-06 at 12:55 +0100, Tom Griffin wrote:

> Hello,
> 
> We have a problem where users cannot get a lease on a subnet configured 
> with failover on some occasions. The error in the DHCPD log is "Peer 
> holds all free leases" which is shown by both servers.
> 
> Looking into the leases file, I can see that there are no leases in the 
> "free" state, they are in other states like "expired". All these leases 
> show "next binding state free" and the "ends" time has already passed.
> 
> When does DHCPD process the lease file to determine which leases should 
> have their binding state changed and is there any reason why this would 
> not happen for a given subnet?
> 
> Could this be caused by the fact that our scripts could potentially 
> restart both dhcpd servers every 5 mins in order to add new hosts? I 
> realise this is something omshell can do, but its documentation is 
> lacking so I haven't gone down that route. I am more willing to give it 
> a try if it will stop future issues like this.
> 
> Many thanks,
> Tom.
> 

-- 
Luis Fernando Lacayo
Chicago Public Schools
Senior Unix Administrator
ITS/ UNIX Infrastructure
Office: 773-553-3835
Cell: 773-203-4493
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