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https://issues.apache.org/jira/browse/HDFS-11400?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15860536#comment-15860536
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Allen Wittenauer commented on HDFS-11400:
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How would you propose preventing memory explosion by referencing home
directories for fake users?
> Automatic HDFS Home Directory Creation
> --------------------------------------
>
> Key: HDFS-11400
> URL: https://issues.apache.org/jira/browse/HDFS-11400
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: hdfs, namenode
> Affects Versions: 2.7.1
> Environment: HDP 2.4.2
> Reporter: Hari Sekhon
>
> Feature Request to add automatic home directory creation for HDFS users when
> they are first resolved by the NameNode if their home directory does not
> already exist, using configurable umask defaulting to 027.
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