[jira] [Commented] (WHIRR-214) Add/Remove nodes to/from running clusters

["Rodrigo Nogueira (Commented) (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/WHIRR-214?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13239730#comment-13239730 ] 

Rodrigo Nogueira commented on WHIRR-214:
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Hi guys,

I am a undergraduate student of computer science from Portugal. I am currently doing research related to large scale data processing.
I've looked at Whirr gsoc ideas and this one really took my attention. 
This idea seems to have a significant relevance to the Whirr project and I really want to give my contribute through Gsoc. 

The possibility of whirr add or remove nodes in runtime is very good, on this way the user can manage your cluster and do what is better in a certain time. In the other words adapt the number of nodes as required the computation level that are needed.
And I am very excited with this possibility.


Also I am looking for a mentor to help me along those months to do a good work.

Best regards.

Rodrigo Nogueira
                
> 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
>              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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