You may do, if a node is no longer a replica for a token range. Which would be
similar to reducing the RF.
nodetool cleanup is the thing to run after you have repaired to remove data a
node should no longer have.
Aaron
On 1 Apr 2011, at 23:10, Jonathan Colby wrote:
> Hi Aaron - Yes, I've re
Hi Aaron - Yes, I've read the part about changing the replication factor on a
running cluster. I've even done it without a problem. My real point of my
question was
> do you now have unused replica data on the "old" replica nodes that you need
> to clean up manually?
any insight would
See the section on Replication here
http://wiki.apache.org/cassandra/Operations#Replication It talks about how to
change the RF and then says you can do the same when change the placement
strategy.
It can be done, but is a little messy.
Depending on your setup it may also be possible to copy
