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https://reviews.apache.org/r/42853/
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Review request for Ambari, Alejandro Fernandez, Dmytro Sen, and Nate Cole.


Bugs: AMBARI-14812
    https://issues.apache.org/jira/browse/AMBARI-14812


Repository: ambari


Description
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Sorted API requests to the alerts endpoint results in data which is not sorted 
at all. Consider this query:

http://localhost:8080/api/v1/clusters/c1/alerts?fields=Alert/latest_timestamp&sortBy=Alert/latest_timestamp

The data is returned out of order. This is because the JPA sort is being placed 
into a {{HashSet}} instead of a {{LinkedHashSet}}.


Diffs
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ambari-server/src/main/java/org/apache/ambari/server/controller/internal/AlertDefinitionResourceProvider.java
 263a7b8 
  
ambari-server/src/main/java/org/apache/ambari/server/controller/internal/AlertResourceProvider.java
 0492860 
  
ambari-server/src/test/java/org/apache/ambari/server/orm/dao/AlertsDAOTest.java 
0bbe998 

Diff: https://reviews.apache.org/r/42853/diff/


Testing
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mvn clean test


Thanks,

Jonathan Hurley

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