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From Apache Wiki <wikidi...@apache.org>
Subject [Cassandra Wiki] Update of "FAQ" by MakiWatanabe
Date Fri, 22 Apr 2011 12:17:37 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Cassandra Wiki" for change notification.

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)>>
  

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