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https://issues.apache.org/jira/browse/HADOOP-4131?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12629489#action_12629489
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Tom White commented on HADOOP-4131:
-----------------------------------
A straightforward way of doing this would be to run Hadoop as a hadoop user,
and export its home directory using NFS. The master node would be the NFS
server, and the worker nodes would be NFS clients. This would ensure that the
user's .ssh directory is shared, thus permitting ssh access between nodes.
> Allow use of hadoop scripts on EC2
> ----------------------------------
>
> Key: HADOOP-4131
> URL: https://issues.apache.org/jira/browse/HADOOP-4131
> Project: Hadoop Core
> Issue Type: Improvement
> Components: contrib/ec2
> Reporter: Tom White
> Assignee: Tom White
> Fix For: 0.19.0
>
>
> Currently the Hadoop control scripts do not work on EC2 since instances do
> not have ssh access to one another. This is inconvenient as it makes it
> impossible to restart the cluster after a configuration change, for example.
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