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https://issues.apache.org/jira/browse/HDFS-6929?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arpit Agarwal resolved HDFS-6929.
---------------------------------

      Resolution: Fixed
    Hadoop Flags: Reviewed

Committed to the feature branch. Thanks [~jnp].

> NN periodically unlinks lazy persist files with missing replicas from 
> namespace
> -------------------------------------------------------------------------------
>
>                 Key: HDFS-6929
>                 URL: https://issues.apache.org/jira/browse/HDFS-6929
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode
>            Reporter: Arpit Agarwal
>            Assignee: Arpit Agarwal
>             Fix For: HDFS-6581
>
>         Attachments: HDFS-6929.01.patch, HDFS-6929.02.patch
>
>
> Occasional data loss is expected when using the lazy persist flag due to node 
> restarts. The NN will optionally unlink lazy persist files from the namespace 
> to avoid them from showing up as corrupt files.
> This behavior can be turned off with a global option. In the future this may 
> be made a per-file option controllable by the client.



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