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- Start a cluster with n1, n2, n3 - Full cluster shutdown n1, n2, n3 - Start n1, n2 and keep n3 as shutdown - Add n4 Node n4 will learn the ip and uuid of n3 but it does not know the gossip status of n3 since gossip status is published only by the node itself. After full cluster shutdown, gossip status of n3 will not be present until n3 is restarted again. So n4 will not think n3 is part of the ring. In this case, it is better to reject the bootstrap. With this patch, one would see the following when adding n4: ``` ERROR 2022-09-01 13:53:14,480 [shard 0] init - Startup failed: std::runtime_error (Node 127.0.0.3 has gossip status=UNKNOWN. Try fixing it before adding new node to the cluster.) ``` The user needs to perform either of the following before adding a new node: 1) Run nodetool removenode to remove n3 2) Restart n3 to get it back to the cluster Fixes #6088 Closes #11425