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https://issues.apache.org/jira/browse/AMBARI-21602?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Levas resolved AMBARI-21602.
-----------------------------------
Resolution: Fixed
Committed to trunk
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commit 01b79aae5553dcd89464d8f6558bdba031417a3f
Author: Robert Levas <[email protected]>
Date: Fri Oct 6 12:26:16 2017 -0400
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Committed to branch-2.6
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commit 154ff06fb1cdfe111c7dc023cc0009aa8ed5d888
Author: Robert Levas <[email protected]>
Date: Fri Oct 6 12:27:23 2017 -0400
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> Pre-configure services when Kerberos is enabled to reduce number of core
> service restarts when services are added
> -----------------------------------------------------------------------------------------------------------------
>
> Key: AMBARI-21602
> URL: https://issues.apache.org/jira/browse/AMBARI-21602
> Project: Ambari
> Issue Type: Task
> Components: ambari-server
> Affects Versions: 2.6.0
> Reporter: Robert Levas
> Assignee: Robert Levas
> Fix For: 2.6.0
>
> Attachments: AMBARI-21602_addendum_01.patch,
> AMBARI-21602_branch-2.6_01.patch, AMBARI-21602_branch-2.6_02.patch,
> AMBARI-21602_trunk_01.patch, AMBARI-21602_trunk_02.patch
>
>
> Pre-configure (certain) services when Kerberos is enabled to reduce number of
> core service restarts when services are added.
> While processing the Kerberos descriptor, include services marked to be
> _pre-configured_. When a tagged service is encountered, process it weather
> it is installed or not. However if it is not installed, only apply
> configuration changes for existing configuration types. This will set at
> least the core-site changes related to proxyuser and auth-to-local rules
> properties. By doing this, if a tagged service is later installed, the
> settings will already be in place in the existing service configs and thus
> the existing services will not need to be restarted.
> Caveats:
> * Default values for the uninstalled, tagged, services will be assumed
> * The stack advisor will be used to suggest locations of components - used to
> build the clusterHostInfo structure that may be used to derive property
> values.
> Note: This processing is to occur when Kerberos is enabled.
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