nodetool describecluster

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

Synopsis 

C:\> %CASSANDRA_HOME%\nodetool <options> describecluster -- <data center> 

• Options are:
  • ( -h | --host ) <host name> | <ip address>
  • ( -p | --port ) <port number>
  • ( -pw | --password ) <password >
  • ( -u | --username ) <user name>
  • ( -pwf <passwordFilePath | --password-file <passwordFilePath> )
• -- separates an option and argument that could be mistaken for a option.
• data center is the name of an arbitrarily chosen data center from which to select sources for streaming.

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%\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%\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]