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https://issues.apache.org/jira/browse/WHIRR-214?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12984937#action_12984937
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Elliott Clark commented on WHIRR-214:
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In thinking about it more. A general solution would be to just have the user
change the instance teamplates and then have whirr figure out the difference.
Spinning up a new cluster is just the difference between 0 nodes and the
templates
Adding to a cluster is the difference between whats currently running and the
template.
Like Tom said this is idempotent so it could be part of a work flow.
> Add nodes to running clusters
> -----------------------------
>
> Key: WHIRR-214
> URL: https://issues.apache.org/jira/browse/WHIRR-214
> Project: Whirr
> Issue Type: New Feature
> Reporter: Elliott Clark
>
> I would like to be able to add a node to a running cluster.
> For example if I have created a hadoop, hbase, zookeeper cluster I would like
> to be able to add region servers to hbase, Zookeeper nodes to the quorum,
> and task nodes to hadoop.
> Something akin to the functionality of the hbase-ec2 script. Where if I
> launch a node on an already running cluster. It is configured to join the
> cluster.
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