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https://issues.apache.org/jira/browse/SPARK-3821?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14205131#comment-14205131
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Shivaram Venkataraman commented on SPARK-3821:
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Regarding reducing init time, I think there are simple things we can do in 
init.sh that will get us most of the way there. For example, we can download 
the tar.gz files for Hadoop, Spark on each machine and untar in parallel 
instead of rsync-ing at the end. But we can revisit this in a separate change I 
guess  

> Develop an automated way of creating Spark images (AMI, Docker, and others)
> ---------------------------------------------------------------------------
>
>                 Key: SPARK-3821
>                 URL: https://issues.apache.org/jira/browse/SPARK-3821
>             Project: Spark
>          Issue Type: Improvement
>          Components: Build, EC2
>            Reporter: Nicholas Chammas
>            Assignee: Nicholas Chammas
>         Attachments: packer-proposal.html
>
>
> Right now the creation of Spark AMIs or Docker containers is done manually. 
> With tools like [Packer|http://www.packer.io/], we should be able to automate 
> this work, and do so in such a way that multiple types of machine images can 
> be created from a single template.



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