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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/61949/
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(Updated Sept. 4, 2017, 6:39 p.m.)


Review request for Ambari, Dmytro Grinenko, Jonathan Hurley, and Nate Cole.


Changes
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Added test coverage


Bugs: AMBARI-21832
    https://issues.apache.org/jira/browse/AMBARI-21832


Repository: ambari


Description
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Currently there is an odd scenario which can occur when patch repositories are 
registered which have services not yet installed. Consider the following 
scenario:

- Install ZooKeeper, Storm on HDP 2.6.0.0-1234
- Register/patch a {{PATCH}} VDF for Storm and Accumulo for 2.6.0.1-9999
- Install Accumulo

Which version does Accumulo use - the {{STANDARD}} repository or the {{PATCH}}? 
If the {{PATCH}} repository is chosen, this will now prevent reversion of the 
patch since there's no prior version for Accumulo to revert back to.

If Accumulo uses the {{STANDARD}} repo, then there needs to be a lot of design 
and UX flow work provided to indicate that a {{PATCH}} which was previously 
applied can be re-applied for the new service. This also causes problems for 
patch reversion since now there would be two upgrades which need to be reverted 
to "get rid" of the patch.

For the timeframe for Ambari 2.6, we should reject VDFs that include services 
which are not installed. This will prevent the problem.


Diffs (updated)
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ambari-server/src/main/java/org/apache/ambari/server/controller/internal/ClusterStackVersionResourceProvider.java
 7a53e91bb0 
  
ambari-server/src/test/java/org/apache/ambari/server/controller/internal/ClusterStackVersionResourceProviderTest.java
 282f159a66 


Diff: https://reviews.apache.org/r/61949/diff/4/

Changes: https://reviews.apache.org/r/61949/diff/3-4/


Testing
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mvn clean test

UI misbehaves when VDF validation triggers error. Will open a UI jira for that


Thanks,

Dmitro Lisnichenko

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