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From Joshua Cohen <jco...@apache.org>
Subject Re: Review Request 54106: changes to intercept and time mybatis invocations
Date Mon, 28 Nov 2016 15:44:02 GMT

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/54106/#review157035
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Looks like you've got two reviews intertwined here? Can you get these properly split up?

- Joshua Cohen


On Nov. 27, 2016, 10:20 p.m., Reza Motamedi wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/54106/
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> 
> (Updated Nov. 27, 2016, 10:20 p.m.)
> 
> 
> Review request for Aurora, David McLaughlin, Joshua Cohen, and Santhosh Kumar Shanmugham.
> 
> 
> Repository: aurora
> 
> 
> Description
> -------
> 
> __Modification to SlaUtil::percentile to compute percentiles by interpolation__
> 
> The calculation of mttX (median-time-to-X) depends on the computation of percentile values.
The current implementation does not behave nicely with a small sample size. For instance,
for a given sample set of  {50, 150}, 50-percentile is reported to be 50. Although, 100 seems
a more appropriate return value.
> 
> This patch uses Guava's Quantile for interpolation.
> 
> 
> Diffs
> -----
> 
>   src/main/java/org/apache/aurora/scheduler/sla/SlaAlgorithm.java 263647e802b664fd3ea21cef8109fb7a9252356f

>   src/main/java/org/apache/aurora/scheduler/sla/SlaUtil.java 156b9c0a2fa0c0ec4b7220d5ec2cc40c3e59d1d6

>   src/main/java/org/apache/aurora/scheduler/storage/db/DbModule.java e7287cec28e7b8ca978c506bfe821f261bc0ac26

>   src/main/java/org/apache/aurora/scheduler/storage/db/InstrumentingInterceptor.java
PRE-CREATION 
>   src/test/java/org/apache/aurora/scheduler/sla/SlaAlgorithmTest.java eca1beebc906d3354d8c294ba466bc904bde98fa

>   src/test/java/org/apache/aurora/scheduler/storage/db/InstrumentingInterceptorTest.java
PRE-CREATION 
>   src/test/java/org/apache/aurora/scheduler/storage/mem/InMemTaskStoreTest.java 2e560c0d565689703b282391fe49dbf213ee25dc

>   src/test/java/org/apache/aurora/scheduler/storage/mem/MemCronJobStoreTest.java 79999e19454568540c14f91808635bf8dff82bb3

> 
> Diff: https://reviews.apache.org/r/54106/diff/
> 
> 
> Testing
> -------
> 
> Tests added and modified to match the continuous distribution.
> I also exported the tests into excel and check the reports percentiles.
> 
> 
> Thanks,
> 
> Reza Motamedi
> 
>


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