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https://issues.apache.org/jira/browse/HDFS-5361?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13794918#comment-13794918
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Suresh Srinivas commented on HDFS-5361:
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Given this is incompatible, the target version for this cannot be 2.3.0. It can 
only be done in 3.0. Alternative is to add another metrics with a different 
name and leave the current one as is.

> Change the unit of StartupProgress 'PercentComplete' to percentage
> ------------------------------------------------------------------
>
>                 Key: HDFS-5361
>                 URL: https://issues.apache.org/jira/browse/HDFS-5361
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 2.1.0-beta
>            Reporter: Akira AJISAKA
>            Assignee: Akira AJISAKA
>            Priority: Minor
>              Labels: metrics, newbie
>         Attachments: HDFS-5361.2.patch, HDFS-5361.patch
>
>
> Now the unit of 'PercentComplete' metrics is rate (maximum is 1.0). It's 
> confusing for users because its name includes "percent".
> The metrics should be multiplied by 100.



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