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https://issues.apache.org/jira/browse/BIGTOP-1746?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14353910#comment-14353910
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Konstantin Boudnik commented on BIGTOP-1746:
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Thanks for opening this up! I think it chimes in with the discussion we are
currently having on BIGTOP-1702 and dev@ list starting from
http://bit.ly/1BqBri4
Would be great if you can chime in there !
> Introduce the concept of roles in bigtop cluster deployment
> -----------------------------------------------------------
>
> Key: BIGTOP-1746
> URL: https://issues.apache.org/jira/browse/BIGTOP-1746
> Project: Bigtop
> Issue Type: New Feature
> Components: deployment
> Reporter: vishnu gajendran
> Labels: features
> Fix For: 0.9.0
>
>
> Currently, during cluster deployment, puppet categorizes nodes as head_node,
> worker_nodes, gateway_nodes, standy_node based on user specified info. This
> functionality gives user control over picking up a particular node as
> head_node, standy_node, gateway_node and rest others as worker_nodes. But, I
> woulld like to have more fine-grained control on which deamons should run on
> which node. For example, I do not want to run namenode, datanode on the same
> node. This functionality can be introduced with the concept of roles. Each
> node can be assigned a set of role. For example, Node A can be assigned
> ["namenode", "resourcemanager"] roles. Node B can be assigned ["datanode",
> "nodemanager"] and Node C can be assigned ["nodemanager", "hadoop-client"].
> Now, each node will only run the specified daemons. Prerequisite for this
> kind of deployment is that each node should be given the necessary
> configurations that it needs to know. For example, each datanode should know
> which is the namenode etc... This functionality will allow users to customize
> the cluster deployment according to their needs.
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