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" gossip: Get rid of seed concept The concept of seed and the different behaviour between seed nodes and non seed nodes generate a lot of confusion, complication and error for users. For example, how to add a seed node into into a cluster, how to promote a non seed node to a seed node, how to choose seeds node in multiple DC setup, edit config files for seeds, why seed node does not bootstrap. If we remove the concept of seed, it will get much easier for users. After this series, seed config option is only used once when a new node joins a cluster. Major changes: Seed nodes are only used as the initial contact point nodes. Seed nodes now perform bootstrap. The only exception is the first node in the cluster. The unsafe auto_bootstrap option is now ignored. Gossip shadow round now talks to all nodes instead of just seed nodes. Refs: #6845 Tests: update_cluster_layout_tests.py + manual test " * 'gossip_no_seed_v2' of github.com:asias/scylla: gossip: Get rid of seed concept gossip: Introduce GOSSIP_GET_ENDPOINT_STATES verb gossip: Add do_apply_state_locally helper gossip: Do not talk to seed node explicitly gossip: Talk to live endpoints in a shuffled fashion