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Posted to issues@mesos.apache.org by "Klaus Ma (JIRA)" <ji...@apache.org> on 2015/09/08 10:46:45 UTC

[jira] [Commented] (MESOS-1187) precision errors with allocation calculations

    [ https://issues.apache.org/jira/browse/MESOS-1187?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14734427#comment-14734427 ] 

Klaus Ma commented on MESOS-1187:
---------------------------------

As [~jieyu] said, we can NOT use == for double; generally, we will check it by {{abs(a,b) < eps}}. I'll draft a fix for that.

> precision errors with allocation calculations
> ---------------------------------------------
>
>                 Key: MESOS-1187
>                 URL: https://issues.apache.org/jira/browse/MESOS-1187
>             Project: Mesos
>          Issue Type: Bug
>          Components: allocation, master
>            Reporter: aniruddha sathaye
>
> As allocations are stored/transmitted as doubles many a times precision errors creep in. 
> we have seen erroneous share calculations happen only because of floating point arithmetic. 



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