http://www.datastax.com/support-forums/topic/if-i-need-format-the-cluster-after-i-change-the-token Software, Support, and Training for Apache Cassandra en-US Thu, 23 May 2013 03:55:21 +0000 http://bbpress.org/?v=1.0.3 q http://www.datastax.com/support-forums/search.php http://www.datastax.com/support-forums/topic/if-i-need-format-the-cluster-after-i-change-the-token#post-1431 Tue, 27 Mar 2012 03:50:57 +0000 Anonymous 1431@http://www.datastax.com/support-forums/ <p>Got it, thanks a lot </p> http://www.datastax.com/support-forums/topic/if-i-need-format-the-cluster-after-i-change-the-token#post-1398 Tue, 20 Mar 2012 02:38:36 +0000 nickmbailey 1398@http://www.datastax.com/support-forums/ <p>You can only change a node's token by issuing it a 'move' command. You can do this from the command line using the nodetool utility or graphically with OpsCenter:</p> <p><a href="http://www.datastax.com/docs/1.0/references/nodetool" rel="nofollow">http://www.datastax.com/docs/1.0/references/nodetool</a><br /> <a href="http://www.datastax.com/products/opscenter" rel="nofollow">http://www.datastax.com/products/opscenter</a></p> <p>By issuing a move command the token for the node will change and the node will fetch/send the data from/to other nodes in the cluster. Additionally OpsCenter can 'rebalance' your entire cluster by issuing a series of moves. For more info on how that works internally see:</p> <p><a href="http://www.datastax.com/dev/blog/balancing-your-cassandra-cluster" rel="nofollow">http://www.datastax.com/dev/blog/balancing-your-cassandra-cluster</a> </p> http://www.datastax.com/support-forums/topic/if-i-need-format-the-cluster-after-i-change-the-token#post-1389 Mon, 19 Mar 2012 09:28:20 +0000 Anonymous 1389@http://www.datastax.com/support-forums/ <p>Do i need restart or format the data on the cluster after I change the token. If not, what should I do to rebalance the cluster? </p>