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https://issues.apache.org/jira/browse/WHIRR-221?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13199811#comment-13199811
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David Alves commented on WHIRR-221:
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wrt to the waitTime agreed.
wrt to implicit dependencies I wasn't thinking of including in this jira.
Still, do you think we should ignore missing dependencies? I get that we should
be able to override dependencies for cases like embedded zookeeper in Hbase but
for most cases we should at least warn the user and give the option to abort.
If someone created a 1 nn, 100 jb+dt cluster (forgot the tasktracker) they are
about to create a pretty useless and expensive cluster.
Overriding the implicit graph sounds good.
> 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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