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https://issues.apache.org/jira/browse/HDFS-11896?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16103664#comment-16103664
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Konstantin Shvachko commented on HDFS-11896:
--------------------------------------------
Yes the test should compare Namesystem stats after registration rather than the
sum of DatanodeDescriptors. But with the same value before registration.
Actually it worth adding both checks. Let me add more asserts.
Will update the trunk patch accordingly and commit.
> 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
> Labels: release-blocker
> 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-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.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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