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https://issues.apache.org/jira/browse/BIGTOP-1347?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14041072#comment-14041072
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Julien Eid commented on BIGTOP-1347:
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Copying here, accidentally sent an email to dev instead of commenting on the
ticket.
I'm confused by the inclusion of rng-tools into the Vagrant VM. Is your intent
to expose the hardware RNG on the host machine to the VM and use rng-tools
daemon to seed the entropy pool using that hardware RNG from the host?
If your hypervisor doesn't support passthorugh of a hardware RNG or your server
doesn't have one, you can use http://www.issihosts.com/haveged/ to generate
entropy to be used in VM's.
> Support better entropy performance on vagrant VMs
> -------------------------------------------------
>
> Key: BIGTOP-1347
> URL: https://issues.apache.org/jira/browse/BIGTOP-1347
> Project: Bigtop
> Issue Type: Improvement
> Components: Deployment
> Affects Versions: 0.7.0
> Reporter: Evans Ye
> Assignee: Evans Ye
> Priority: Minor
> Fix For: 0.8.0
>
> Attachments: BIGTOP-1347.1.patch
>
>
> Currently the
> [vagrant-puppet|https://github.com/apache/bigtop/tree/master/bigtop-deploy/vm/vagrant-puppet]
> deployment use Virtualbox as VM provider. The visualized hardware in
> Virtualbox does not have good performance on entropy generation since such
> randomness often collected from hardware sources.
> The poor entropy performance directly impact the use in cryptography or use
> that required random data, which in our case is kerberos. In order to test
> our code snipes for real world usage instead of suffering on virtual
> machines, we can improve the entropy performance on VMs using rng-tools when
> provisioning those test VMs.
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