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Date: Mon, 5 Dec 2016 07:23:58 +0000 (UTC)
From: "Shen Yinjie (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
Message-ID: <JIRA.13025005.1480665420000.436262.1480922638568@Atlassian.JIRA>
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References: <JIRA.13025005.1480665420000@Atlassian.JIRA> <JIRA.13025005.1480665420379@arcas>
Subject: [jira] [Commented] (MAPREDUCE-6816) Progress bars in Web UI always
 at 100%
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archived-at: Mon, 05 Dec 2016 07:24:00 -0000


    [ https://issues.apache.org/jira/browse/MAPREDUCE-6816?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15721467#comment-15721467 ] 

Shen Yinjie commented on MAPREDUCE-6816:
----------------------------------------

[~ajisakaa] ,[~xgong] . I found this bug in hadoop-3.0+ .and need your advice and review 

> Progress bars in Web UI always at 100% 
> ---------------------------------------
>
>                 Key: MAPREDUCE-6816
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6816
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: webapps
>    Affects Versions: 3.0.0-alpha2
>            Reporter: Shen Yinjie
>            Assignee: Shen Yinjie
>         Attachments: MAPREDUCE-6816.01.patch, MAPREDUCE-6816.patch, pre.png
>
>
> YARN web UI always shows progress bars at 100% (see screenshot, progress of the reduce step is roughly at 40.00%). I opened the HTML source code to check (also see screenshot), and it seems the problem is that it uses "%%" ,which cannot be recognized. This is due to the output of{code}StringUtils.format(){code} contains '%', while in *Block.java use {code}join(){code}add an extra '%'.


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