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https://issues.apache.org/jira/browse/HDFS-8545?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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J.Andreina updated HDFS-8545:
-----------------------------
    Attachment: HDFS-8545.4.patch

Thanks [~vinayrpet] for the review comments. 
I have updated the patch .Please review

> Add an API to fetch the total file length from a specific path, apart from 
> getting by default from root
> -------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-8545
>                 URL: https://issues.apache.org/jira/browse/HDFS-8545
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: J.Andreina
>            Assignee: J.Andreina
>            Priority: Minor
>         Attachments: HDFS-8545.1.patch, HDFS-8545.2.patch, HDFS-8545.3.patch, 
> HDFS-8545.4.patch
>
>
> Currently by default in FileSystem#getUsed() returns the total file size from 
> root. 
> It is good to have an api to return the total file size from specified path 
> ,same as we specify the path in "./hdfs dfs -du -s /path" .



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