MAAS, using amt, cannot guarantee that the correct machine is being contacted

[Juan L. Negron]

When using MAAS with a node managed with AMT power management tools, there is no guarantee that MAAS will power on/off/cycle the correct node.

Normally, with IPMI, a static IP address is used for power management. When using AMT there is no guarantee that the IP address that the node had when commissioned, will persist. This creates a situation where MAAS could try to power on/off the wrong machine.

This behavior was observed in the micro clusters.

[Julian Edwards (julian-edwards)]

Can you confirm that you have enough IP addresses in your DHCP range?

[Julian Edwards (julian-edwards)]

Ok we think we know what's going on here.

We suspect that the nodes enlisted but were not accepted for commissioning until after the initial DHCP lease had run out. This would not be a problem for the regular boot etc but the power address parameter would now obviously be wrong.

[Julian Edwards (julian-edwards)]

I think it can be fixed by assigning the static MAC/IP map when enlisting rather than waiting until the node is accepted.

[Tycho Andersen (tycho-s)]

So I think this is fixed in part by http://bazaar.launchpad.net/~maas-maintainers/maas/trunk/revision/1944 , although the DNS issues would also be good to fix.

[Julian Edwards (julian-edwards)]

What are the "DNS issues"? They are not mentioned elsewhere here.

[Julian Edwards (julian-edwards)]

I think this was fixed, re-open if not.