How often is "relatively often" ? > * having a fixed amount of nodes with initial tokens and letting new > ones auto bootstrap themselves Generally a bad idea, you should make sure nodes re given sensible tokens that evenly distribute the data.
Cheers ----------------- Aaron Morton Freelance Developer @aaronmorton http://www.thelastpickle.com On 22/12/2011, at 12:34 AM, p...@smallrivers.com wrote: > Hi, > > I wonder about the best strategy when a cluster sees changes in its > topology relatively often. > > My main concern is how to handle the initial token for new nodes. If a > cluster is first created with 7 nodes for which the initial token is > calculated with the formula here: > http://wiki.apache.org/cassandra/Operations#Token_selection. > > It seems as though two strategies can be applied: > > * having a fixed amount of nodes with initial tokens and letting new > ones auto bootstrap themselves > * recomputing tokens for the new number of nodes and using nodetool move > for each of those > > Is any of these right and are there other strategies ? > > - pyr
