[
https://issues.apache.org/jira/browse/BIGTOP-1746?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14376238#comment-14376238
]
vishnu gajendran commented on BIGTOP-1746:
------------------------------------------
Hi Evans, thank you for reviewing my patch. You are correct. I have targeted
this patch to add roles as additional parameter for bigtop cluster deployment.
For your question related to having node (FQDN) specific configuration, I like
the idea which Michael weiser mentioned in his below comments.
> 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
> Affects Versions: 0.8.0
> Reporter: vishnu gajendran
> Assignee: vishnu gajendran
> Labels: features
> Fix For: 1.0.0
>
> Attachments: BIGTOP-1746.patch
>
>
> 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.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
