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The "FAQ" page has been changed by MakiWatanabe. The comment on this change is: Rewrite #seed. http://wiki.apache.org/cassandra/FAQ?action=diff&rev1=115&rev2=116 -------------------------------------------------- == What are seeds? == - Seeds, or seed nodes are the nodes which new nodes refer to on - bootstrap to know ring information. + If you configure your nodes to refer some node as seed, nodes in your ring tend to send Gossip message to seeds more often ( Refer to [[ArchitectureGossip]] for details ) than to non-seeds. In other words, seeds are worked as hubs of Gossip network. + With seeds, each node can detect status changes of other nodes quickly. + + Seeds are also referred by new nodes on bootstrap to learn other nodes in ring. When you add a new node to ring, you need to specify at least one live seed to contact. Once a node join the ring, it learns about the other nodes, so it doesn't need seed on subsequent boot. @@ -448, +450 @@ static ring, you can point non-seed node as seed on bootstrap though it is not recommended. - Nodes in the ring tend to send Gossip message to seeds more often ( Refer to [[ArchitectureGossip]] for more - details ) than to non-seeds. In other words, seeds are worked as hubs of Gossip network. - With seeds, each node can detect status changes of other nodes quickly. <<Anchor(seed_spof)>>
