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From Zameer Manji <zma...@apache.org>
Subject Re: Review Request 54439: Add support for an mttu metric (median time to updated)
Date Thu, 08 Dec 2016 21:34:49 GMT

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/54439/#review158575
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Please remove me from the reviewers list. I have no time to review this.

I support this metric and look forward to using it once it is landed.

+1 to Serb's comment about adding a chnagelog entry

bonus points for updating the metrics docs.

- Zameer Manji


On Dec. 7, 2016, 9:50 a.m., Joshua Cohen wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/54439/
> -----------------------------------------------------------
> 
> (Updated Dec. 7, 2016, 9:50 a.m.)
> 
> 
> Review request for Aurora, Mehrdad Nurolahzade, Santhosh Kumar Shanmugham, and Zameer
Manji.
> 
> 
> Repository: aurora
> 
> 
> Description
> -------
> 
> The metric is calculated from the time of the `INSTANCE_UPDATING` event to the subsequent
`ASSIGNED` event for the task with the same instance id that matches the desired task config
from the update details.
> 
> My original approach to this involved converting `GroupType` and `AlgorithmType` from
enums (which cannot be generic) to static classes (which, of course, can). This allowed me
to avoid unnecessarily passing update details to the `calculate` method of `SlaAlgorithm`
since it's ignored in all but the one, new case. However, that ended up being a lot of churn,
and since it turns out we need both the task details and the update details to calculate this
metric, I went with the below approach. If anyone feels strongly, I could go back to generics
and create an container class that's gives access to both the tasks and update details.
> 
> 
> Diffs
> -----
> 
>   src/main/java/org/apache/aurora/scheduler/sla/MetricCalculator.java 9a56cda809fbbcb07e6dd12c7a0feb272542491d

>   src/main/java/org/apache/aurora/scheduler/sla/SlaAlgorithm.java 5d8d5bd8f705770979f284d26d2e932aabe707e5

>   src/main/java/org/apache/aurora/scheduler/sla/SlaGroup.java 6fbd4e962b3bb6eeb0831c810a321478fd52172c

>   src/test/java/org/apache/aurora/scheduler/sla/MetricCalculatorTest.java 953b65f28a585375e36e305dea6f9f94f99abc93

>   src/test/java/org/apache/aurora/scheduler/sla/SlaAlgorithmTest.java 2e719ac6b7aea86faa22deff2cc6b5f73135761c

>   src/test/java/org/apache/aurora/scheduler/sla/SlaModuleTest.java 341e346e794c9cf9a2789b8799f38fff900ec9b3

>   src/test/java/org/apache/aurora/scheduler/sla/SlaTestUtil.java 78f440f7546de9ed6842cb51db02b3bddc9a74ff

>   src/test/java/org/apache/aurora/scheduler/storage/testing/StorageTestUtil.java 21d26b3930ea965487b2dec48a48a98677ba022b

>   src/test/java/org/apache/aurora/scheduler/thrift/Fixtures.java 43e32eede27bbf26363a3fd1ca34ffe6f8c01a73

>   src/test/java/org/apache/aurora/scheduler/thrift/ReadOnlySchedulerImplTest.java 6d0e9bc6a8040393875d4f0a88e8db9d6926a88b

> 
> Diff: https://reviews.apache.org/r/54439/diff/
> 
> 
> Testing
> -------
> 
> ./gradlew build -Pq
> e2e tests.
> 
> 
> Thanks,
> 
> Joshua Cohen
> 
>


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