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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/53793/
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Review request for Ambari, Jonathan Hurley, Nate Cole, and Sumit Mohanty.


Bugs: AMBARI-18899
    https://issues.apache.org/jira/browse/AMBARI-18899


Repository: ambari


Description
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I think not marking HDFS as restart required when Ambari upgrades is a good 
goal.

In general its a difficult to get it right for all services.
* hadoop.security.key.provider.path
* dfs.encryption.key.provider.uri

These two are removed by stack advisor when RANGER KMS does not exist. We 
should find out why it got added on Ambari upgrade. This seems like a bug to me.
* namenode_backup_dir


Diffs
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ambari-server/src/main/resources/common-services/HDFS/2.1.0.2.0/configuration/hadoop-env.xml
 afaaee8 
  
ambari-server/src/main/resources/stacks/HDP/2.2/services/HDFS/configuration/core-site.xml
 846b09e 
  
ambari-server/src/main/resources/stacks/HDP/2.2/services/HDFS/configuration/hdfs-site.xml
 aad524d 
  
ambari-server/src/main/resources/stacks/PHD/3.0/services/HDFS/configuration/core-site.xml
 4f18611 
  
ambari-server/src/main/resources/stacks/PHD/3.0/services/HDFS/configuration/hdfs-site.xml
 0fed58d 

Diff: https://reviews.apache.org/r/53793/diff/


Testing
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Checked on cluster with Ranger installed. Upgraded Ambari 2.4.2->2.5.0 without 
these properties, services were able to stop/start without issues.


Thanks,

Dmitro Lisnichenko

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