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https://issues.apache.org/jira/browse/HDFS-11896?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16143771#comment-16143771
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Brahma Reddy Battula commented on HDFS-11896:
---------------------------------------------

IMO, this should be backported to {{branch-2.8.2}} as well..?

> Non-dfsUsed will be doubled on dead node re-registration
> --------------------------------------------------------
>
>                 Key: HDFS-11896
>                 URL: https://issues.apache.org/jira/browse/HDFS-11896
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.7.3
>            Reporter: Brahma Reddy Battula
>            Assignee: Brahma Reddy Battula
>            Priority: Blocker
>             Fix For: 2.9.0, 2.7.4, 3.0.0-beta1, 2.8.3
>
>         Attachments: HDFS-11896-002.patch, HDFS-11896-003.patch, 
> HDFS-11896-004.patch, HDFS-11896-005.patch, HDFS-11896-006.patch, 
> HDFS-11896-007.patch, HDFS-11896-008.patch, HDFS-11896-branch-2.7-001.patch, 
> HDFS-11896-branch-2.7-002.patch, HDFS-11896-branch-2.7-003.patch, 
> HDFS-11896-branch-2.7-004.patch, HDFS-11896-branch-2.7-005.patch, 
> HDFS-11896-branch-2.7-006.patch, HDFS-11896-branch-2.7-008.patch, 
> HDFS-11896.patch
>
>
>  *Scenario:* 
> i)Make you sure you've non-dfs data.
> ii) Stop Datanode
> iii) wait it becomes dead
> iv) now restart and check the non-dfs data



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