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https://issues.apache.org/jira/browse/HDFS-8858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14654980#comment-14654980
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Masatake Iwasaki commented on HDFS-8858:
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This seems to be related to HDFS-8791.
> DU should be re-executed if the target directory exists
> -------------------------------------------------------
>
> Key: HDFS-8858
> URL: https://issues.apache.org/jira/browse/HDFS-8858
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode
> Reporter: Akira AJISAKA
> Priority: Minor
>
> Unix DU command rarely fails when a child file/directory of the target path
> is being moved or deleted. I'm thinking we should re-try DU if the target
> path exists, to avoid failure in writing replicas.
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