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https://issues.apache.org/jira/browse/CASSANDRA-3220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13106755#comment-13106755
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Brandon Williams commented on CASSANDRA-3220:
---------------------------------------------
bq. What part of this was necessary to troubleshoot?
It's kind of pain to test things like CASSANDRA-1777 without it, since we don't
have anything off-the-shelf that calls describe_ring. I had to write my own
test app for that saga.
> add describe_ring to cli
> ------------------------
>
> Key: CASSANDRA-3220
> URL: https://issues.apache.org/jira/browse/CASSANDRA-3220
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Jackson Chung
> Priority: Minor
> Attachments: patch3220.diff
>
>
> Lately I have found the describe_ring feature was needed to debug/analyze
> issue, but the cli does not have this available.
> So just in case it is useful, please see the attached patch.
> here is the sample output:
> {noformat}
> [default@unknown] help;
> ...
> ...
> decr Decrements a counter column.
> describe ring Describe the token range information.
> describe cluster Describe the cluster configuration.
> ...
> ...
> [default@unknown] help describe ring;
> describe ring <keyspace>;
> Describes the token range settings for the named keyspace.
> Required Parameters:
> - keyspace: Name of the keyspace to describe the token range.
> Examples:
> describe ring <keyspace>; - Describes the token range settings for the named
> keyspace.
> [default@unknown] describe ring Keyspace3;
> TokenRange:
> TokenRange(start_token:9739248273232290250409572410247679660,
> end_token:9739248273232290250409572410247679660, endpoints:[192.168.0.125],
> rpc_endpoints:[192.168.0.125],
> endpoint_details:[EndpointDetails(host:192.168.0.125, port:9160,
> datacenter:168)])
> [default@unknown] describe ring fooks;
> Keyspace with name 'fooks' wasn't found, , please, authorize to one of the
> keyspaces first.
> [default@unknown] describe ring;
> Syntax error at position 13: mismatched input ';' expecting set null
> {noformat}
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