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https://issues.apache.org/jira/browse/HDFS-1895?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ramkrishna.s.vasudevan updated HDFS-1895:
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Attachment: ssh-hadoop-config.sh
> Setting up of cluster using ssh - Scripts that help in minimising the cluster
> setup efforts
> -------------------------------------------------------------------------------------------
>
> Key: HDFS-1895
> URL: https://issues.apache.org/jira/browse/HDFS-1895
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: scripts
> Reporter: ramkrishna.s.vasudevan
> Priority: Minor
> Attachments: ssh-hadoop-config.sh
>
>
> Sometimes when we have a large number of clusters we may have to specify the
> password of the different machines that we are using as slaves (datanodes).
>
> If the cluster is very huge we may have to repeat this everytime.
> So we would to suggest a way to avoid this
>
> 1. Generate a SSH key from the name node machine
> 2. Read the entries from the conf/slaves file, for every entry add the key
> generated in step 1 to a file of slave machine.
> 3. Repeat the same for master file also.
>
> when you execute step 1 it will prompt for the password. This is only for
> the first time.
>
> After that whenever you need to start the cluster then password need not be
> specified.
>
> This scenario is valid when we are sure of the cluster that we will be
> maintaining and we are aware of the credentials of the machine.
>
> This will help the cluster administrator.
>
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