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Date: Thu, 8 Sep 2011 06:31:09 +0000 (UTC)
From: "Mark Guzman (JIRA)" <jira@apache.org>
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Subject: [jira] [Updated] (CASSANDRA-2882) describe_ring should include
 datacenter/topology information
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     [ https://issues.apache.org/jira/browse/CASSANDRA-2882?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mark Guzman updated CASSANDRA-2882:
-----------------------------------

    Attachment: 0001-adding-an-additional-parameter-to-the-TokenRange-res.patch

v1 patch adding datacenter info and port where possible. needs some cleanup and review.

> describe_ring should include datacenter/topology information
> ------------------------------------------------------------
>
>                 Key: CASSANDRA-2882
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2882
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: API, Core
>            Reporter: Mark Guzman
>            Assignee: Pavel Yaskevich
>            Priority: Minor
>              Labels: lhf
>             Fix For: 1.0
>
>         Attachments: 0001-adding-an-additional-parameter-to-the-TokenRange-res.patch
>
>
> 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.

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