nodetool describering

Provides the partition ranges of a keyspace.

Synopsis

nodetool <options> describering -- <keyspace>

Cassandra tarball installations:

installation_location/cassandra/bin

Table 1. 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.
`keyspace`	Name of keyspace.
`--`	Separates an option from an argument that could be mistaken for a option.

Example

This example shows the sample output of the command on a three-node cluster.

nodetool describering demo_keyspace

Schema Version:1b04bd14-0324-3fc8-8bcb-9256d1e15f82
TokenRange: 
	TokenRange(start_token:3074457345618258602, end_token:-9223372036854775808, 
         endpoints:[127.0.0.1, 127.0.0.2, 127.0.0.3], 
         rpc_endpoints:[127.0.0.1, 127.0.0.2, 127.0.0.3], 
         endpoint_details:[EndpointDetails(host:127.0.0.1, datacenter:datacenter1, rack:rack1), 
         EndpointDetails(host:127.0.0.2, datacenter:datacenter1, rack:rack1), 
         EndpointDetails(host:127.0.0.3, datacenter:datacenter1, rack:rack1)])
	TokenRange(start_token:-3074457345618258603, end_token:3074457345618258602, 
         endpoints:[127.0.0.3, 127.0.0.1, 127.0.0.2], 
         rpc_endpoints:[127.0.0.3, 127.0.0.1, 127.0.0.2], 
         endpoint_details:[EndpointDetails(host:127.0.0.3, 
         datacenter:datacenter1, rack:rack1), 
         EndpointDetails(host:127.0.0.1, datacenter:datacenter1, rack:rack1), 
         EndpointDetails(host:127.0.0.2, datacenter:datacenter1, rack:rack1)])
	TokenRange(start_token:-9223372036854775808, end_token:-3074457345618258603, 
         endpoints:[127.0.0.2, 127.0.0.3, 127.0.0.1], 
         rpc_endpoints:[127.0.0.2, 127.0.0.3, 127.0.0.1], 
         endpoint_details:[EndpointDetails(host:127.0.0.2, datacenter:datacenter1, rack:rack1), 
         EndpointDetails(host:127.0.0.3, datacenter:datacenter1, rack:rack1), 
         EndpointDetails(host:127.0.0.1, datacenter:datacenter1, rack:rack1)])

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

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]