baea12c9cb
Reaching critical disk utilization on destination means the draining either caused it, or at least works against reliveing it. So it's better to cancel those requests. In case of decommission, if critical disk utilization was caused by it due to not enough capacity, aborting decomission will bring capacity back to the system and rebalancing will relieve critical disk utlization.
Extension of the cluster tests, where all tests require externally mounted volumes to be used by scylla cluster nodes. The volumes are passed with --workdir.
The volumes can be of any size. A help generator space_limited_servers is provided
to easily create a cluster of any given number of nodes, where each node operates in
a separate volume.