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https://issues.apache.org/jira/browse/MESOS-3552?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15028206#comment-15028206
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Avinash Sridharan commented on MESOS-3552:
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Just an update. Tried Mandeep's test case with CHECK_DOUBLE_EQ and it fails on
the test Mandeep had submitted for review
https://reviews.apache.org/r/39056/
Creating a patch with CHECK_NEAR with margin set to MIN_CPUS and adding
Mandeep's test case to the test framework as well.
> CHECK failure due to floating point precision on reservation request
> --------------------------------------------------------------------
>
> Key: MESOS-3552
> URL: https://issues.apache.org/jira/browse/MESOS-3552
> Project: Mesos
> Issue Type: Task
> Components: master
> Reporter: Mandeep Chadha
> Assignee: Mandeep Chadha
> Labels: mesosphere, tech-debt
>
> result.cpus() == cpus() check is failing due to ( double == double )
> comparison problem.
> Root Cause :
> Framework requested 0.1 cpu reservation for the first task. So far so good.
> Next Reserve operation — lead to double operations resulting in following
> double values :
> results.cpus() : 23.9999999999999964472863211995 cpus() : 24
> And the check ( result.cpus() == cpus() ) failed.
> The double arithmetic operations caused results.cpus() value to be :
> 23.9999999999999964472863211995 and hence ( 23.9999999999999964472863211995
> == 24 ) failed.
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