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Posted to issues@ambari.apache.org by "Robert Levas (JIRA)" <ji...@apache.org> on 2017/08/31 17:47:00 UTC
[jira] [Updated] (AMBARI-21809) Pre-configure services during stack
upgrade if Kerberos is enabled to reduce number of core service restarts
when services are added
[ https://issues.apache.org/jira/browse/AMBARI-21809?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Robert Levas updated AMBARI-21809:
----------------------------------
Attachment: AMBARI-21809_branch-2.6_01.patch
AMBARI-21809_trunk_01.patch
> Pre-configure services during stack upgrade if Kerberos is enabled to reduce number of core service restarts when services are added
> ------------------------------------------------------------------------------------------------------------------------------------
>
> Key: AMBARI-21809
> URL: https://issues.apache.org/jira/browse/AMBARI-21809
> 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-21809_branch-2.6_01.patch, AMBARI-21809_trunk_01.patch
>
>
> Pre-configure (certain) services during a stack upgrade to HDP 2.6, when Kerberos is enabled, to reduce number of core service restarts when services are added.
> Services to pre-configure include:
> * Knox
> * Beacon
> While upgrading the stack (EU or RU), processing the relevant Kerberos descriptor to find services marked to be _pre-configured_. When a tagged service is encountered, process it if it is not installed. Apply only 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 upgrading the stack from HDP 2.5 to HDP 2.6.
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