Q: How do partitions work?

[strowi]

Hi,

we recently stumbled upon DDoS-ing our registry by not having any partitions/rolloutstrategy. I was wondering what happens with the following rolloutStragegy:

Let's say we have 200 clusters of which always one or two handful are offline.

rolloutStrategy:
  maxUnavailable: 100%
  maxUnavailablePartitions: 100%
  autoPartitionSize: 10%

How will the rollout happen here? Still one partition (20 clusters) after the other?
Or just all at the same time since 100% are allowed to fail?

Is there another way to insert some delay between rollouts to prevent the DDoS of our registry?

Thx,
strowi