Which ever node the client connects to is the coordinator node. It will take care of sending the messages to the nodes who will do the actual work.
If you have multiple nodes try a DNS round robin to distribute client connections around. Aaron On 6 Jul 2010, at 22:10, ChingShen wrote: > Hi all, > > I'm newbie in Cassandra, I have a question about which node is coordinator > node in my cluster. > > I have A, B, C, D, E, F and G nodes. if I run a write operation on "A" node, > and key range between A and B, so the A node is responsible to write the key > to B, C and D nodes(RF=3) ? and does it mean A node is coordinator node? > > Thanks. > > Shen