Dear Wiki user,

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

The "Operations" page has been changed by CathyDaw.
http://wiki.apache.org/cassandra/Operations?action=diff&rev1=84&rev2=85

--------------------------------------------------

        for x in xrange(nodes):         
            print 2 ** 127 / nodes * x
  
- In versions of cassandra 0.7.* and lower, there's also `nodetool 
loadbalance`: essentially a convenience over decommission + bootstrap, only 
instead of telling the target node where to move on the ring it will choose its 
location based on the same heuristic as Token selection on bootstrap. You 
should not use this as it doesn't rebalance the entire ring. 
+ In versions of Cassandra 0.7.* and lower, there's also `nodetool 
loadbalance`: essentially a convenience over decommission + bootstrap, only 
instead of telling the target node where to move on the ring it will choose its 
location based on the same heuristic as Token selection on bootstrap. You 
should not use this as it doesn't rebalance the entire ring. 
  
- The status of move and balancing operations can be monitored using `nodetool` 
with the `streams` argument.
+ The status of move and balancing operations can be monitored using `nodetool` 
with the `netstat` argument. 
+ (Cassandra 0.6.* and lower use the `streams` argument).
  
  == Consistency ==
  Cassandra allows clients to specify the desired consistency level on reads 
and writes.  (See [[API]].)  If R + W > N, where R, W, and N are respectively 
the read replica count, the write replica count, and the replication factor, 
all client reads will see the most recent write.  Otherwise, readers '''may''' 
see older versions, for periods of typically a few ms; this is called "eventual 
consistency."  See 
http://www.allthingsdistributed.com/2008/12/eventually_consistent.html and 
http://queue.acm.org/detail.cfm?id=1466448 for more.

Reply via email to