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https://issues.apache.org/jira/browse/AMBARI-9972?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Nettleton updated AMBARI-9972:
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Fix Version/s: (was: 2.1.0)
2.1.1
> Provide means to skip INSTALL commands when bits are already installed on the
> node
> ----------------------------------------------------------------------------------
>
> Key: AMBARI-9972
> URL: https://issues.apache.org/jira/browse/AMBARI-9972
> Project: Ambari
> Issue Type: Task
> Reporter: Ivan Mitic
> Fix For: 2.1.1
>
>
> To better support cloud deployments, Ambari should be able to recognize that
> packages have already been preinstalled on the VM image, and skip the INSTALL
> commands. Based on the measurements with latest Ambari 2.0 and HDP 2.2,
> INSTALL phase takes ~3 minutes, so skipping these steps will contribute
> significantly to the overall deployment latency.
> Things are not as strait forward as mentioned above, as some components might
> do some steps beyond just INSTALL, but that's ok given that these are
> exceptions we can handle/eliminate on case-by-case basis.
> Ambari preinstall and postinstall hooks can generally be run only once during
> sys-prep so there shouldn't be any problems there.
> Let's use this Jira to further discuss the design and come up with a patch
> that will address this requirement.
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