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https://issues.apache.org/jira/browse/YARN-2123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14320094#comment-14320094
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Giuseppe Luciano commented on YARN-2123:
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The progress bar doesn't show because of
"String percent = String.format("%.1f", app.getProgress() * 100.0F);" in
"org/apache/hadoop/yarn/server/webapp/AppsBlock.java"
If the language is Italian, for example, the percent is a string with the
comma, and so the output in HTML is:
"<div class="ui-progressbar-value ui-widget-header ui-corner-left"
style="width:82,0%"> </div>" if you change the comma this the dot it works.
> Progress bars in Web UI always at 100% (likely 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
> Priority: Minor
> Attachments: 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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