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https://issues.apache.org/jira/browse/HDFS-7740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14308434#comment-14308434
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Tsz Wo Nicholas Sze commented on HDFS-7740:
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Some test cases:
- Create a single block file with 3 replicas. Truncate mid of block and then
immediately restart 2 of the DNs. Check the files
- Same as before except completely shutting down 3 of the DNs but not
restarting them.
> Test truncate with DataNodes restarting
> ---------------------------------------
>
> Key: HDFS-7740
> URL: https://issues.apache.org/jira/browse/HDFS-7740
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: test
> Affects Versions: 2.7.0
> Reporter: Konstantin Shvachko
> Assignee: Yi Liu
> Fix For: 2.7.0
>
>
> Add a test case, which ensures replica consistency when DNs are failing and
> restarting.
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