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https://issues.apache.org/jira/browse/HADOOP-2776?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12588020#action_12588020
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Nate Carlson commented on HADOOP-2776:
--------------------------------------
I get by this by setting up nph-proxy
(http://www.jmarshall.com/tools/cgiproxy/) on the master Hadoop node, and use
that to browse the hosts. Kind of a hack, but works well for me.
> Web interface uses internal hostnames on EC2
> --------------------------------------------
>
> Key: HADOOP-2776
> URL: https://issues.apache.org/jira/browse/HADOOP-2776
> Project: Hadoop Core
> Issue Type: Bug
> Components: contrib/ec2
> Affects Versions: 0.15.1
> Environment: EC2 ami-a324c1ca
> Reporter: David Phillips
>
> The web interface, for example http://$MASTER_HOST:50030/machines.jsp, uses
> internal hostnames when running on EC2. This makes it impossible to access
> from outside EC2.
> The slaves file has the public names listed. Resolving a public name inside
> EC2 returns the private IP (which would reverse to the internal DNS name).
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