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https://issues.apache.org/jira/browse/AMBARI-14555?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Nettleton updated AMBARI-14555:
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Attachment: (was: AMBARI-14555.patch)
> Add Blueprints support for starting only a subset of components within a host
> group
> -----------------------------------------------------------------------------------
>
> Key: AMBARI-14555
> URL: https://issues.apache.org/jira/browse/AMBARI-14555
> Project: Ambari
> Issue Type: Bug
> Components: ambari-server
> Affects Versions: 2.1.0
> Reporter: Robert Nettleton
> Assignee: Robert Nettleton
> Priority: Critical
> Fix For: 2.2.1
>
> Attachments: AMBARI-14555.patch
>
> Original Estimate: 96h
> Remaining Estimate: 96h
>
> Currently, the Blueprint deployment process for a cluster will always take a
> component through the "INSTALL" and "START" phases.
> While this is the correct default behavior for most cluster deployments,
> there are cases where a user would like more fine-grained control over when
> certain components are started.
> There is currently some support for this, implemented by AMBARI-14283,
> however this support is currently cluster-wide, so that START commands can be
> disabled for the entire cluster, but not on a component-basis.
> I propose that we extend the work in AMBARI-14283 to also allow a Blueprint
> to specify that certain components may only use the "INSTALL" phase, and skip
> the "START" phase.
> This work will require some minor additions to the Blueprint syntax, that
> I'll publish in this proposal.
> The Blueprint syntax should support marking each comopnent as having a
> "provision_action" that can override the default "INSTALL_AND_START"
> behavior.
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