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https://issues.apache.org/jira/browse/WHIRR-332?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13177707#comment-13177707
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Tom White commented on WHIRR-332:
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+1
> Need to specify different instance size/type depending on role
> --------------------------------------------------------------
>
> Key: WHIRR-332
> URL: https://issues.apache.org/jira/browse/WHIRR-332
> Project: Whirr
> Issue Type: Bug
> Components: service/hadoop
> Affects Versions: 0.5.0
> Reporter: Paul Baclace
> Assignee: Andrei Savu
> Fix For: 0.8.0
>
> Attachments: WHIRR-332.patch, WHIRR-332.patch, WHIRR-332.patch,
> WHIRR-332.patch
>
>
> When setting up Hadoop, whirr.hardware-id is used in the configuration to set
> a single instance size/type for both nn,jt and dn,tt roles, but there are
> workloads that benefit from having a different instance size/type for each
> role. This need is even greater for ensembles with Zookeeper and HBase.
> Without this, a small Whirr cluster underutilizes resources.
> whirr.hardware-id should be a used to set a default instance size/type, and
> variations like whirr.${role}.hardware-id could be used to set size/type more
> specifically. This is a simple, obvious, and easy to implement mechanism to
> provide this functionality.
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