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From "Andrew Bayer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (WHIRR-214) Add/Remove nodes to/from running clusters
Date Thu, 25 Jul 2013 21:47:48 GMT

    [ https://issues.apache.org/jira/browse/WHIRR-214?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13720106#comment-13720106
] 

Andrew Bayer commented on WHIRR-214:
------------------------------------

Alright. I'll dive through the experiments and see what I can come up with from here.
                
> Add/Remove nodes to/from running clusters
> -----------------------------------------
>
>                 Key: WHIRR-214
>                 URL: https://issues.apache.org/jira/browse/WHIRR-214
>             Project: Whirr
>          Issue Type: New Feature
>            Reporter: Elliott Clark
>            Assignee: Andrew Bayer
>              Labels: gsoc, gsoc2012, mentor
>             Fix For: 0.9.0
>
>         Attachments: WHIRR-214-refactoring-1.patch, WHIRR-214-refactoring-1.patch, WHIRR-214-zookeeeper-only.patch,
zookeeper-repair-or-extend-cluster.patch
>
>
> 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.
> We should also provide hooks for removing nodes from the cluster. In many situations
removing nodes is much harder that adding them, however this issue should mostly care with
cloud mgmt and providing the hooks for addition/deletion separate issues should handle the
add/remove process for each service, so it won't be a gargantuous task.

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