[jira] [Commented] (MESOS-3552) Check failed: result.cpus() == cpus() && result.mem() == mem() && result.disk() == disk() && result.ports() == ports()

["Neil Conway (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MESOS-3552?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15022891#comment-15022891 ] 

Neil Conway commented on MESOS-3552:
------------------------------------

I opened MESOS-3997 for the longer-term issue that we should switch to fixed point for resources.

> Check failed: result.cpus() == cpus() && result.mem() == mem() && result.disk() == disk() && result.ports() == ports() 
> -----------------------------------------------------------------------------------------------------------------------
>
>                 Key: MESOS-3552
>                 URL: https://issues.apache.org/jira/browse/MESOS-3552
>             Project: Mesos
>          Issue Type: Bug
>          Components: master
>    Affects Versions: 0.24.1
>            Reporter: Mandeep Chadha
>            Assignee: Mandeep Chadha
>
> 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.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)