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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/60774/
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(Updated July 12, 2017, 12:05 p.m.)


Review request for Ambari, Laszlo Puskas, Robert Nettleton, Sandor Magyari, 
Sebastian Toader, and Sid Wagle.


Changes
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Addressed review remarks


Bugs: AMBARI-21442
    https://issues.apache.org/jira/browse/AMBARI-21442


Repository: ambari


Description
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Ambari appended a 'm' suffix to certain memory settings related properties 
during blueprint install. This was implemented in the MPropertyUpdater.

For example if namenode_heapsize was 512 then Ambari updated it to 512m. 
However if the property already had a suffix like 4g then it was updated to be 
4gm.

This patch does 2 things differently
 1. Instead of the hardcoded 'm' suffix, it uses the unit that is defined in 
the stack (if the stack doesn't define anything it falls back using 'm' as 
before).
 2. It checks if the property already has some unit, and if that unit doesn't 
match the stack defined unit, then the blueprint will be rejected with an error 
(this case has never worked before)

For examples:
 1.   4g is rejected if the stack defined unit is MB.
 2.   4 becomes 4m if the stack defined unit is MB.
 3.   4m stays 4m if the stack defined unit is MB.


MPropertyUpdated was replaced with UnitUpdater. But a new TopologyValidator was 
also introduced. The purpose of this is to catch invalid properties earlier.


Diffs (updated)
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ambari-server/src/main/java/org/apache/ambari/server/controller/internal/BlueprintConfigurationProcessor.java
 37284be 
  
ambari-server/src/main/java/org/apache/ambari/server/controller/internal/Stack.java
 e1ea1cd 
  
ambari-server/src/main/java/org/apache/ambari/server/controller/internal/UnitUpdater.java
 PRE-CREATION 
  
ambari-server/src/main/java/org/apache/ambari/server/topology/validators/TopologyValidatorFactory.java
 5a6f64e 
  
ambari-server/src/main/java/org/apache/ambari/server/topology/validators/UnitValidatedProperty.java
 PRE-CREATION 
  
ambari-server/src/main/java/org/apache/ambari/server/topology/validators/UnitValidator.java
 PRE-CREATION 
  
ambari-server/src/test/java/org/apache/ambari/server/controller/internal/UnitUpdaterTest.java
 PRE-CREATION 
  
ambari-server/src/test/java/org/apache/ambari/server/topology/validators/UnitValidatorTest.java
 PRE-CREATION 


Diff: https://reviews.apache.org/r/60774/diff/3/

Changes: https://reviews.apache.org/r/60774/diff/2-3/


Testing
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Manually with blueprints with the following values
 - namenode_heapsize=512  -> transformed to 512m
 - namenode_heapsize=512g -> exception
 - namenode_heapsize=512m -> no transformation

existing tests: PENDING


Thanks,

Attila Magyar

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