nodetool decommission
Causes a live node to decommission itself, streaming its data to the next node on the ring to replicate appropriately.
Decommission puts a node in LEAVING state.
The leaving node keeps its CQL port open and continues to serve read and write queries while the decommission process streams data to other nodes.
When the decommission finishes, the node stops providing CQL service and gossip while leaving the JVM alive.
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Synopsis
nodetool [<connection_options>] decommission
[-f]Definition
The short- and long-form options are comma-separated.
Connection options
- -h, --host hostname
-
The hostname or IP address of a remote node or nodes. When omitted, the default is the local machine.
- -p, --port jmx_port
-
The JMX port number.
- -pw, --password jmxpassword
-
The JMX password for authenticating with secure JMX. If a password is not provided, you are prompted to enter one.
- -pwf, --password-file jmx_password_filepath
-
The filepath to the file that stores JMX authentication credentials.
- -u, --username jmx_username
-
The username for authenticating with secure JMX.
Command arguments
- -f, --force
-
Force decommission of the node even when it reduces the number of replicas to below configured RF.
Examples
Decommission a remote node
nodetool -h 10.46.123.12 decommission