nodetool describecluster

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

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

Synopsis

$ 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 User name
-- Separates an option from an argument that could be mistaken for a option.
Other options are:
  • -- separates an option and argument that could be mistaken for a option.
  • datacenter is the name of an arbitrarily chosen datacenter 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

$ 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.

$ 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]