[jira] [Updated] (AMBARI-17226) When requesting a Kerberos Descriptor via the REST API, 'when' clauses should optionally be processed

["Robert Levas (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMBARI-17226?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Levas updated AMBARI-17226:
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    Summary: When requesting a Kerberos Descriptor via the REST API, 'when' clauses should optionally be processed  (was: Hive llap principals are shown on Configure Identity even when Hive is not deployed)

> When requesting a Kerberos Descriptor via the REST API, 'when' clauses should optionally be processed
> -----------------------------------------------------------------------------------------------------
>
>                 Key: AMBARI-17226
>                 URL: https://issues.apache.org/jira/browse/AMBARI-17226
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-server
>    Affects Versions: 2.4.0
>            Reporter: Robert Levas
>            Assignee: Robert Levas
>             Fix For: 2.4.0
>
>
> 1. Deploy ambari cluster with YARN, HDFS, ZOOKEEPER and HBASE
> 2. enable security (AD)
> Expected: On ConfigureIdentities page hive.llap.zk.sm.principal and hive.llap.zk.sm.keytab.file
>  should not be present if hive is not deployed on cluster.
> Actual: These 2 properties are showing under Ambari Principals panel even when Hive is not deployed on the cluster.
> *Cause*
> This is caused when identities that have {{when}} clauses are not filtered out if the when clause evaluates to {{false}} when the UI queries for the (composite) Kerberos Descriptor. 
> *Solution*
> Add a {{GET}} directive to specify {{when}} clauses are to be evaluatated while building the Kerberos Descriptor using the following API call:
> {noformat}
> GET /api/v1/clusters/CLUSTER_NAME/kerberos_descriptors/COMPOSITE?evaluate_when=true
> {noformat}



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