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Posted to hdfs-dev@hadoop.apache.org by "Clay B. (JIRA)" <ji...@apache.org> on 2019/01/27 06:17:00 UTC
[jira] [Created] (HDFS-14234) LImit WebHDFS to specifc user, host,
directory triples
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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