scylla_node: add missing liveness check

When starting a node with "wait_other_notice", the existing code waited
until all other nodes think the new node is ready. However, it's safer
to also check that the new node thinks all the other nodes are ready.
It should usually be the case (the new node gets information on all
other nodes in the first gossip), but it doesn't strictly have to be
true so better ensure that it is.

Signed-off-by: Nadav Har'El <[email protected]>

ccmlib/scylla_node.py

@@ -311,6 +311,7 @@ def _start_scylla(self, args, marks, update_pid, wait_other_notice,
             for node, _ in marks:
                 t = timeout if timeout is not None else 120 if self.cluster.scylla_mode != 'debug' else 360
                 node.watch_rest_for_alive(self, timeout=t)
+                self.watch_rest_for_alive(node, timeout=t)
 
         if wait_for_binary_proto:
             t = timeout * 4 if timeout is not None else 420 if self.cluster.scylla_mode != 'debug' else 900