"peer holds all free leases" message

[Kirsten Petersen]

This problem has just bit us in the rear again.

A couple of our subnets started getting the "peer holds all free leases" 
error again, on both servers.  I tried the work-around that worked last 
time - stopping dhcp on the secondary and nuking the leases file - but it 
didn't change anything this time.  The errors persisted.

In an act of desperation, I whacked the leases file on the primary, too. 
Now it is in recover and is saying "not responding (recovering)" to many 
requests, although it is ACKing some requests, too.  Strangely, the 
dhcpd.leases file does not contain any leases yet...

So, apparently that wasn't such a good idea.  Is there anything I can do 
to prevent this "peer holds all free leases" issue from coming up again? 
I'm feeling very powerless right now.  :(  Perhaps our config should be 
different.  This is the present config:

Primary:

failover peer "dhcp" {
         primary;
         address 128.193.x,x;
         port 520;

         # our peer is ns2
         peer address 128.193.x.2x;
         peer port 520;

         max-response-delay 60;
         max-unacked-updates 10;
         mclt 3600;
         split 128;
         load balance max seconds 3;
}

secondary:

failover peer "dhcp" {
         secondary;
         address 128.193.x,x;
         port 520;

         # ns1 is our secondary
         peer address 128.193.x.x;
         peer port 520;

         max-response-delay 60;
         max-unacked-updates 10;
         mclt 3600;
         load balance max seconds 3;
}

We are running 3.03.  Any suggestions are welcome.  Would it be better to 
set these up so that the secondary is just an emergency failover?  Also, 
where can I find detailed information about how the failover and pool 
sharing works?  (It's all voodoo to me at this point.)

Thanks.

________________
Kirsten Petersen
Network Services * Oregon State University
http://oregonstate.edu/net * irc.oregonstate.edu #osu-is
"Go to the edge of the cliff and jump off. Build your wings on the way down."
- Ray Bradbury

On Wed, 1 Mar 2006, David W. Hankins wrote:

>   *** From dhcp-server -- To unsubscribe, see the end of this message. ***
>
> On Tue, Feb 28, 2006 at 04:43:07PM -0800, Kirsten Petersen wrote:
>> What's the ETA on a release candidate for 3.0.4?
>
> I'm not aware of anything that would cause me to schedule another beta.
>
> So, hopefully in 1-2 weeks, so long as nothing crops up.
>
> b2->b3 took forever because I found a crash bug here on our systems at
> ISC...releasing b3 knowing it would crash means we know we'll have a
> b4, so it's just a waste of time.  Ultimately, we didn't actually fix
> that bug (was never able to find it), we just backed out the change that
> seems to have produced it, scheduling it for rework into a later release.
>
> -- 
> David W. Hankins		"If you don't do it right the first time,
> Software Engineer			you'll just have to do it again."
> Internet Systems Consortium, Inc.		-- Jack T. Hankins
>
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