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From "ramkrishna.s.vasudevan (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-1895) Setting up of cluster using ssh - Scripts that help in minimising the cluster setup efforts
Date Fri, 13 May 2011 11:13:47 GMT

     [ https://issues.apache.org/jira/browse/HDFS-1895?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

ramkrishna.s.vasudevan updated HDFS-1895:
-----------------------------------------

    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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