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From "Clay B. (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-14234) Limit WebHDFS to specifc user, host, directory triples
Date Wed, 30 Jan 2019 00:27:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-14234?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Clay B. updated HDFS-14234:
---------------------------
    Attachment: 0001-HDFS-14234.-Limit-WebHDFS-to-specifc-user-host-direc.patch
        Status: Patch Available  (was: Open)

This is a work-in-progress trying to get more tests and is mainly to ensure I am on a reasonable
path others think is sane too.

> Limit WebHDFS to specifc user, host, directory triples
> ------------------------------------------------------
>
>                 Key: HDFS-14234
>                 URL: https://issues.apache.org/jira/browse/HDFS-14234
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: webhdfs
>            Reporter: Clay B.
>            Priority: Trivial
>         Attachments: 0001-HDFS-14234.-Limit-WebHDFS-to-specifc-user-host-direc.patch
>
>
> For those who have multiple network zones, it is useful to prevent certain zones from
downloading data from WebHDFS while still allowing uploads. This can enable functionality
of HDFS as a dropbox for data - data goes in but can not be pulled back out. (Motivation further
presented in [StrangeLoop 2018 Of Data Dropboxes and Data Gloveboxes|https://www.thestrangeloop.com/2018/of-data-dropboxes-and-data-gloveboxes.html]).
> Ideally, one could limit the datanodes from returning data via an [{{OPEN}}|https://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-hdfs/WebHDFS.html#Open_and_Read_a_File]
but still allow things such as [{{GETFILECHECKSUM}}|https://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-hdfs/WebHDFS.html#Get_File_Checksum]
and {{[{{CREATE}}|https://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-hdfs/WebHDFS.html#Create_and_Write_to_a_File]}}.



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