Clay B. created HDFS-14234:
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Summary: 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.
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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