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From "Ben Kempe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-4819) Allow mapping the nodes from ring describe to simplify remotely debugging hadoop jobs
Date Tue, 16 Oct 2012 21:25:02 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-4819?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13477362#comment-13477362
] 

Ben Kempe commented on CASSANDRA-4819:
--------------------------------------

If we are setting rpc_interface to a public ip, the thrift service won't listen to the private
IP anymore, but we need to be able to access Cassandra via both. Therefore, we have rpc_interface
set to 0.0.0.0.
                
> Allow mapping the nodes from ring describe to simplify remotely debugging hadoop jobs
> -------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-4819
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4819
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Hadoop
>    Affects Versions: 1.1.5
>            Reporter: Ben Kempe
>            Priority: Trivial
>         Attachments: trunk-hadoop-mapping-endpoints.txt
>
>
> When testing Hadoop jobs using the Cassandra InputFormat/OutputFormat classes, it's helpful
to be able to use public IPs rather than the private IPs that the ring describe returns. It's
be possible to use an SSH tunnel, but a "node-mapping" feature in those classes simplifies
the process. 

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