Details
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Bug
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Status: Resolved
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Critical
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Resolution: Fixed
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2.4.0
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None
Description
This JIRA tracks an extension to the work started in:
In that JIRA, support is being added to allow Blueprint deployments that skip the installation steps, and only attempt to start all components in the cluster after the configuration phase has completed.
In AMBARI-16220, the feature is configured via a property in "ambari.properties", which configures this feature on the ambari-server itself.
This current JIRA tracks a suggestion to extend this feature, such that the "START_ONLY" mode can be treated as a new type of "provision_action".
Using the property specified in ambari.properties isn't incorrect, but may be inconvenient in the future for enhancements and maintenance.
In multi-cluster scenarios, it might be better to configure this at the cluster-level.
There has already been some work done to configure provisioning in a more fine-grained way.
Sid's patch for the following Blueprints feature:
https://issues.apache.org/jira/browse/AMBARI-14283
Shows how a "provision_action" can be selected for a given deployment.
This notion of a "provision_action" has also been extended to the component level as well:
https://issues.apache.org/jira/browse/AMBARI-14555
Currently, this "provision_action" configuration is only used to select an INSTALL_ONLY deployment, but it could certainly be extended to have a "START_ONLY" action as well. This would have the benefit of being able to choose this option on a per-cluster basis, and not require an ambari-server restart if this feature is desired but not enabled by default.
The following code reference shows how the "provision_action" configuration option is used by a Blueprints deployment:
org.apache.ambari.server.topology.HostRequest#createTasks
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