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https://reviews.apache.org/r/44281/
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Review request for Ambari and Dmitro Lisnichenko.


Bugs: AMBARI-15269
    https://issues.apache.org/jira/browse/AMBARI-15269


Repository: ambari


Description
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During Configure Identities step on Kerberos Wizard, UI sends request for
recommendations.  
Recommendations payload contains configs from kerberos descriptor and Kerberos
configs.  
With installed services HDFS, ZooKeeper, Yarn, MapReduce2, Hive and Tez few
configurations from recommendation response has empty values. For example:

    
    
    hive.server2.authentication.kerberos.keytab: ""
    hive.server2.authentication.kerberos.principal: ""
    

In kerberos descriptor values for configs are
**${keytab_dir}/hive.service.keytab** and **hive/_HOST@${realm}**.


Diffs
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  ambari-server/src/main/resources/stacks/HDP/2.2/services/stack_advisor.py 
6f0ee59 

Diff: https://reviews.apache.org/r/44281/diff/


Testing
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mvn clean test


Thanks,

Andrew Onischuk

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