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https://issues.apache.org/jira/browse/YARN-2123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14513613#comment-14513613
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Akira AJISAKA commented on YARN-2123:
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bq. Could you check whether this problem happens against current trunk? 
I checked this problem happened against current trunk (revision 618ba7).

bq. One problem I found is the percentage of the app queue gets NaN - please 
check an attached file. Is this related issue?
Probably it's because the used memory was divided by 0 in the following code:
{code:title=FairSchedulerQueueInfo.java}
    fractionMemUsed = (float)usedResources.getMemory() /
        clusterResources.getMemory();
{code}
Would you attach your yarn-site.xml and fair-scheduler.xml?

> Progress bars in Web UI always at 100% due to non-US locale
> -----------------------------------------------------------
>
>                 Key: YARN-2123
>                 URL: https://issues.apache.org/jira/browse/YARN-2123
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: webapp
>    Affects Versions: 2.3.0
>            Reporter: Johannes Simon
>            Assignee: Akira AJISAKA
>         Attachments: NaN_after_launching_RM.png, YARN-2123-001.patch, 
> YARN-2123-002.patch, YARN-2123-003.patch, screenshot-noPatch.png, 
> screenshot-patch.png, screenshot.png
>
>
> In our cluster setup, the YARN web UI always shows progress bars at 100% (see 
> screenshot, progress of the reduce step is roughly at 32.82%). I opened the 
> HTML source code to check (also see screenshot), and it seems the problem is 
> that it uses a comma as decimal mark, where most browsers expect a dot for 
> floating-point numbers. This could possibly be due to localized number 
> formatting being used in the wrong place, which would also explain why this 
> bug is not always visible.



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