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https://issues.apache.org/jira/browse/AMBARI-13550?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Levas updated AMBARI-13550:
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Attachment: AMBARI-13550_trunk_01.patch
AMBARI-13550_branch-2.1_01.patch
> ActionScheduler#filterParallelPerHostStages should not filter out stages with
> server-side actions
> -------------------------------------------------------------------------------------------------
>
> Key: AMBARI-13550
> URL: https://issues.apache.org/jira/browse/AMBARI-13550
> Project: Ambari
> Issue Type: Bug
> Components: ambari-server
> Affects Versions: 2.1.3
> Reporter: Robert Levas
> Assignee: Robert Levas
> Priority: Critical
> Labels: actions, kerberos
> Fix For: 2.1.3
>
> Attachments: AMBARI-13550_branch-2.1_01.patch,
> AMBARI-13550_trunk_01.patch
>
>
> org.apache.ambari.server.actionmanager.ActionScheduler#filterParallelPerHostStages
> should not filter out stages that contain server-side actions (to be
> executed on the Ambari server host). This is because tasks in these stages
> are typically required to complete before other stages on other hosts are
> executed.
> For example while enabling Kerberos for an added service, principals and
> keytab files need to be created before the stage to distribute the key tab
> files. The principal and keytab file creation happens on the Ambari server
> (as server-side actions) and the distribution tasks happen on the relevant
> hosts. If the server-side stages are filtered out (in the event multiple
> stages are pending for the Ambari server host), then one or more might be
> skipped and the distribution task is queued. In this scenario, the
> distribution stage will fail since the required keytab files will not have
> been created.
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