nodetool describecluster

Provide the name, snitch, partitioner and schema version of a cluster

Synopsis

C:\> %CASSANDRA_HOME%\bin\nodetool <options> describecluster -- <datacenter>

Options
Short	Long	Description
`-h`	`--host`	Hostname or IP address.
`-p`	`--port`	Port number.
`-pwf`	`--password-file`	Password file path.
`-pw`	`--password`	Password.
`-u`	`--username`	Remote JMX agent username.
`--`	Separates an option from an argument that could be mistaken for a option.

Description

Describe cluster is typically used to validate the schema after upgrading. If a schema disagreement occurs, check for and resolve schema disagreements.

Example

C:\> %CASSANDRA_HOME%\bin\nodetool describecluster

Cluster Information:
	Name: Test Cluster
	Snitch: org.apache.cassandra.locator.DynamicEndpointSnitch
	Partitioner: org.apache.cassandra.dht.Murmur3Partitioner
	Schema versions:
		65e78f0e-e81e-30d8-a631-a65dff93bf82: [127.0.0.1]

If a schema disagreement occurs, the last line of the output includes information about unreachable nodes.

C:\> %CASSANDRA_HOME%\bin\nodetool describecluster

Cluster Information:
	Name: Production Cluster
       Snitch: org.apache.cassandra.locator.DynamicEndpointSnitch
       Partitioner: org.apache.cassandra.dht.Murmur3Partitioner
       Schema versions:
              UNREACHABLE: 1176b7ac-8993-395d-85fd-41b89ef49fbb: [10.202.205.203]

CASSANDRA_HOME

Windows 3.0 installations	C:\Program Files\Datastax Community\apache-cassandra\
Windows 3.x installations	C:\Program Files\Datastax-DDC\apache-cassandra\

On a standard Windows installation, the installation wizard creates %CASSANDRA_HOME% as an environment variable.