Replacing a running node
Steps to replace a node with a new node, such as when updating to newer hardware or performing proactive maintenance.
Steps to replace a node with a new node, such as when updating to newer hardware or performing proactive maintenance.
You must prepare and start the replacement node, integrate it into the cluster, and then decommission the old node.
Note: To change the IP address of a node, simply change the IP of node and then restart
Cassandra. If you change the IP address of a seed node, you must update the
-seeds parameter in the seed_provider for each node
in the cassandra.yaml file.
The location of the cassandra.yaml file depends on the type of installation:
Package installations | /etc/cassandra/cassandra.yaml |
Tarball installations | install_location/resources/cassandra/conf/cassandra.yaml |
Windows installations | C:\Program Files\DataStax Community\apache-cassandra\conf\cassandra.yaml |
Procedure
Be sure to install the same version of Cassandra as is installed on the other nodes in the cluster. See Installing prior releases.