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From "paul cannon (JIRA)" <>
Subject [jira] [Commented] (CASSANDRA-2238) Allow nodetool to print out hostnames given an option
Date Thu, 21 Apr 2011 04:17:05 GMT


paul cannon commented on CASSANDRA-2238:

It might be nontrivial- it depends on what we define as the hostname for a node: the node's
own OS {{hostname}} output, or some other lookup (DNS, NSS, etc) of each node IP from the
system running nodetool?  The former makes more sense, but the only way I could identify to
accomplish it, last time I tried, was to query the {{Name}} attribute of {{java.lang:type=Runtime}},
and depend on it always containing the local hostname after the @ sign. I have no idea whether
that's a valid thing to depend on, and it seems a little bit excessively ghetto for something
like nodetool.

The right solution would probably be adding a jmx attribute exposing the "real" node name.

If instead this ticket is asking for reverse DNS lookups or something, then I'm -1 on the
whole thing.

> Allow nodetool to print out hostnames given an option
> -----------------------------------------------------
>                 Key: CASSANDRA-2238
>                 URL:
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Tools
>            Reporter: Joaquin Casares
>            Assignee: paul cannon
>            Priority: Trivial
>             Fix For: 0.8.1
> Give nodetool the option of either displaying IPs or hostnames for the nodes in a ring.

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