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 -- <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
$ 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.
$ 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]