Comment 6 for bug 1470013

The power actions times out after 5 minutes.

There is no artificial contention done by MAAS when powering off a large number of nodes using the same chassis. In other words, MAAS will literally hammer the chassis when performing a power action on a vast number of nodes.

Reading the code in src/provisioningserver/drivers/hardware/seamicro.py I see:
            # Chance that multiple login's are at once, the api
            # only supports one at a time. So lets try again after
            # a second, up to max retry count.

This makes me think that we end up in a deadlock because we have many sessions in parallel.