Hello All! I've got a pretty standard task - to replace a running C* node [version 2.1.15, vnodes=256, Ec2Snitch] (IP address will change after replacement, have no control over it).
There are 2 ways stated in C* documentation how this can be done: 1) Add a new node, than 'nodetool decommission' [ = 2 data streaming + 2 token range recalculations], 2) Stop the node then replace it by setting -Dcassandra.replace_address [ = 1 data streaming] Unfortunately, both these methods imply data streaming. Is there a supported solution how to replace a live healthy node without data streaming / bootstrapping? Something like: "Stop old node, copy data to new node, start new node with auto_bootstrap=false etc..." I was able to find a couple manuals on the Internet, like this one: http://engineering.mydrivesolutions.com/posts/cassandra_nodes_replacement/, but not having understanding of C* internals, I don't know if such hacks are safe. Regards, Kyrill
