This series makes several changes to how ignored nodes list is treated
by the topology coordinator. First the series makes it global and not
part of a single topology operation, second it extends the list at the
time of removenode/replace invocation and third it bans all nodes in
the list from contacting the cluster ever again.
The main motivation is to have a way to unblock tablet migration in case
of a node failure. Tablet migration knows how to avoid nodes in ignored
nodes list and this patch series provides a way to extend it without
performing any topology operation (which is not possible while tables
migration runs).
Fixesscylladb/scylladb#16108
* 'gleb/ignore-nodes-handling-v2' of github.com:scylladb/scylla-dev:
test: add test for the new ignore nodes behaviour
topology coordinator: cleanup node_state::decommissioning state handling code
topology coordinator: ban ignored nodes just like we ban nodes that are left
storage_service: topology coordinator: validate ignore dead nodes parameters in removenode/replace
topology coordinator: add removed/replaced nodes to ignored_nodes list at the request invocation time
topology coordinator: make ignored_nodes list global and permanent
topology_coordinator: do not cancel rebuild just because some other nodes are dead
topology coordinator: throw more specific error from wait_for_ip() function in case of a timeout
raft_group0: add make_nonvoters function that can make multiple node non voters simultaneously
7e9e10186f