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Ship it!




Ship It!

- Nate Cole


On March 1, 2017, 3:51 p.m., Jonathan Hurley wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/57215/
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> 
> (Updated March 1, 2017, 3:51 p.m.)
> 
> 
> Review request for Ambari, Nate Cole and Robert Levas.
> 
> 
> Bugs: AMBARI-20262
>     https://issues.apache.org/jira/browse/AMBARI-20262
> 
> 
> Repository: ambari
> 
> 
> Description
> -------
> 
> Currently, Ambari uses Spring's 
> {{ClassPathScanningCandidateComponentProvider}} along with an 
> {{AnnotationTypeFilter}} to find classes annotated in our classpath:
> 
> ```
>       ClassPathScanningCandidateComponentProvider scanner =
>           new ClassPathScanningCandidateComponentProvider(false);
> 
>       // match only singletons that are eager listeners
>       for (Class<? extends Annotation> cls : classes) {
>         scanner.addIncludeFilter(new AnnotationTypeFilter(cls));
>       }
> 
>       beanDefinitions = scanner.findCandidateComponents(AMBARI_PACKAGE);
> ```
> 
> This takes roughly 19 seconds on normal deployments. We can reduce this time 
> to roughly 8 seconds by switching over to Google's {{ClassPath}} via our 
> internal {{ClasspathScannerUtils}}
> 
> 
> Diffs
> -----
> 
>   
> ambari-server/src/main/java/org/apache/ambari/server/audit/AuditLoggerModule.java
>  d8b8466 
>   
> ambari-server/src/main/java/org/apache/ambari/server/cleanup/ClasspathScannerUtils.java
>  01487f0 
>   
> ambari-server/src/main/java/org/apache/ambari/server/cleanup/CleanupModule.java
>  d2a7583 
>   
> ambari-server/src/main/java/org/apache/ambari/server/controller/ControllerModule.java
>  8646e51 
>   
> ambari-server/src/test/java/org/apache/ambari/server/orm/InMemoryDefaultTestModule.java
>  3090108 
> 
> 
> Diff: https://reviews.apache.org/r/57215/diff/1/
> 
> 
> Testing
> -------
> 
> PENDING
> 
> 
> Thanks,
> 
> Jonathan Hurley
> 
>

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