[jira] [Created] (AMBARI-14664) Blueprints: After Kerberos deployment, UI requires that Yarn service be restarted

["Sandor Magyari (JIRA)" <ji...@apache.org>]

Sandor Magyari created AMBARI-14664:
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             Summary: Blueprints: After Kerberos deployment, UI requires that Yarn service be restarted
                 Key: AMBARI-14664
                 URL: https://issues.apache.org/jira/browse/AMBARI-14664
             Project: Ambari
          Issue Type: Bug
          Components: ambari-server
    Affects Versions: 2.2.0
            Reporter: Sandor Magyari
            Assignee: Sandor Magyari
            Priority: Critical
             Fix For: 2.2.1


This is similar issue to AMBARI-14251 Stale configuration problem.

Kerberos.json config files contains a few properties like: {$clusterHostInfo/webhcat_server_host} for HIVE and KNOX configs. These properties are replaced using StageUtils.getClusterHostInfo() which is a quite problematic one and sometimes could happen that hosts are missing from clusterHostInfo since TopologyHostRequest were not created at that time.

The solution would be to pass clusterHostInfo map to KerberosHelper in case of using it from TopologyManager so there's no need to get clusterInfo from StageUtils. We can create this map from ClusterTopology once topology is resolved. To retrieve hosts to be resolved form kerberos configs, we would pass an empty componentHostMap then we can select host variables from config properties. This way the same Kerberos config logic will run both for BP and non BP deployments.



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