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From "Andrei Savu (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (WHIRR-221) Optionally control the order of starting services
Date Fri, 03 Feb 2012 11:41:53 GMT

    [ https://issues.apache.org/jira/browse/WHIRR-221?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13199653#comment-13199653
] 

Andrei Savu commented on WHIRR-221:
-----------------------------------

... and the new ScriptBasedClusterAction looks good to me. 
                
> Optionally control the order of starting services
> -------------------------------------------------
>
>                 Key: WHIRR-221
>                 URL: https://issues.apache.org/jira/browse/WHIRR-221
>             Project: Whirr
>          Issue Type: New Feature
>          Components: core, documentation
>            Reporter: Andrei Savu
>            Assignee: David Alves
>            Priority: Critical
>             Fix For: 0.8.0
>
>         Attachments: WHIRR-221-v1.patch, WHIRR-221-v3.patch, WHIRR-221.patch
>
>
> As Lars sugested in WHIRR-170:
> The user should "be able to optionally control the order (services start). This could
be role based and specified like so
> {code}
> whirr.role-order=zk,nn+jt,dn+tt,hbase-master,hbase-regionserver
> {code}
> If not specified the system should make any effort to start the services as quickly as
possible, for example in multiple threads. In other words, when the role-order is not given
no guarantee about order can be given."

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