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https://issues.apache.org/jira/browse/HADOOP-2474?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12590176#action_12590176
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Chris K Wensel commented on HADOOP-2474:
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then maybe a new command should be added to register a particular cluster
master ip against a given dyndns name..
since there are no internal dependencies on the dyndns name, this would an
optional call by the user.
for example,
> hadoop-ec2 register-name <group-name> <dns-name>
> Automate EC2 DynDNS setup
> -------------------------
>
> Key: HADOOP-2474
> URL: https://issues.apache.org/jira/browse/HADOOP-2474
> Project: Hadoop Core
> Issue Type: Improvement
> Components: contrib/ec2
> Reporter: Tom White
>
> Use the DynDNS webservice
> (https://www.dyndns.com/developers/specs/syntax.html) to automatically set up
> DNS for the EC2 cluster master node. If no DynDNS credentials are set (in
> hadoop-ec2-env.sh) then prompt the user to set up DNS manually (the existing
> behaviour).
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