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Posted to yarn-issues@hadoop.apache.org by "Shane Kumpf (JIRA)" <ji...@apache.org> on 2016/10/27 18:54:59 UTC
[jira] [Updated] (YARN-4263) Capacity scheduler 60%-40% formatting
floating point issue
[ https://issues.apache.org/jira/browse/YARN-4263?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Shane Kumpf updated YARN-4263:
------------------------------
Labels: easyfix oct16-easy (was: easyfix)
> Capacity scheduler 60%-40% formatting floating point issue
> ----------------------------------------------------------
>
> Key: YARN-4263
> URL: https://issues.apache.org/jira/browse/YARN-4263
> Project: Hadoop YARN
> Issue Type: Bug
> Components: client
> Affects Versions: 2.7.1
> Reporter: Adrian Kalaszi
> Priority: Trivial
> Labels: easyfix, oct16-easy
> Attachments: YARN-4263.001.patch, YARN-4263.002.patch, YARN-4263.003.patch, YARN-4263.004.patch, YARN-4263.005.patch
>
>
> If capacity scheduler is set with two queues to 60% and 40% capacity, due to a java float floating representation issue
> {code}
> > hadoop queue -list
> ======================
> Queue Name : default
> Queue State : running
> Scheduling Info : Capacity: 40.0, MaximumCapacity: 100.0, CurrentCapacity: 0.0
> ======================
> Queue Name : large
> Queue State : running
> Scheduling Info : Capacity: 60.000004, MaximumCapacity: 100.0, CurrentCapacity: 0.0
> {code}
> Because
> {code} System.err.println((0.6f) * 100); {code}
> results in 60.000004.
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