|Operations / Adding or removing a node or data center|
Reduce the size of a data center.
$ nodetool repair -h ip_address_of_node keyspace_name
The nodetool repair command repairs inconsistencies across all of the replicas for a given range of data.
This assigns the ranges that the node was responsible for to other nodes and replicates the data appropriately.
Use nodetool netstats to monitor the progress.