[CASSANDRA-2882] describe_ring should include datacenter/topology information

• Type: Improvement
• Status: Resolved
• Priority: Low
• Resolution: Fixed
• Fix Version/s: 1.0.1
• Component/s: Legacy/CQL
• Labels: lhf
• Assignee: Mark Guzman
• Reporter: Mark Guzman

Authors

Mark Guzman

Reviewers

Pavel Yaskevich

• Created: 11/Jul/11 23:35
• Updated: 16/Apr/19 09:32
• Resolved: 12/Sep/11 19:04

Description

describe_ring is great for getting a list of nodes in the cluster, but it doesn't provide any information about the network topology which prevents it's use in a multi-dc setup. It would be nice if we added another list to the TokenRange object containing the DC information.

Optimally I could have ask any Cassandra node for this information and on the client-side prefer local nodes but be able to fail to remote nodes without requiring another lookup.

Issue Links

• is related to: CASSANDRA-1777 The describe_host API method is misleading in that it returns the interface associated with gossip traffic
• relates to: CASSANDRA-3173 Add RPC_PORT to ApplicationState