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https://issues.apache.org/jira/browse/HDFS-4243?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jing Zhao updated HDFS-4243:
----------------------------
Attachment: HDFS-4243.001.patch
Patch uploaded. The patch also refactors FSDirectory#replaceNode() by removing
unnecessary FSNamesystem locking and rooDir.addINode() call.
> INodeDirectory.replaceChild(..) does not update parent
> ------------------------------------------------------
>
> Key: HDFS-4243
> URL: https://issues.apache.org/jira/browse/HDFS-4243
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Reporter: Tsz Wo (Nicholas), SZE
> Assignee: Jing Zhao
> Attachments: HDFS-4243.001.patch
>
>
> The method replaces an existing child with a new child. However, it does not
> take care the case the child also an INodeDirectory. In such case, the
> parent pointers of the children of the child have to be updated to the new
> child.
> Only FSDirectory.unprotectedSetQuota(..) calls this method so that the child
> is always an INodeDirectory.
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