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https://issues.apache.org/jira/browse/HADOOP-4745?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tom White resolved HADOOP-4745.
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Resolution: Duplicate
This was fixed as a part of HADOOP-6108.
> EC2 scripts should configure Hadoop to use all available disks on large
> instances
> ---------------------------------------------------------------------------------
>
> Key: HADOOP-4745
> URL: https://issues.apache.org/jira/browse/HADOOP-4745
> Project: Hadoop Common
> Issue Type: Improvement
> Components: contrib/cloud
> Affects Versions: 0.19.0
> Reporter: Tom White
> Assignee: Tom White
> Attachments: hadoop-4745.patch
>
>
> The Hadoop configuration on EC2 currently always uses a single disk, even
> when more are available
> (http://docs.amazonwebservices.com/AWSEC2/2007-08-29/DeveloperGuide/instance-storage.html).
> Performance is significantly boosted by using all the available disks, so we
> should configure Hadoop to use them automatically.
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