Ryan Hennig created HDFS-5117:
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Summary: Allow the owner of an HDFS path to be a group
Key: HDFS-5117
URL: https://issues.apache.org/jira/browse/HDFS-5117
Project: Hadoop HDFS
Issue Type: New Feature
Components: hdfs-client
Reporter: Ryan Hennig
At eBay, we have the need to associate some HDFS paths with a set of users with
write access, a set of users with read-only access, and neither read or write
to others.
The current model of POSIX-style permissions is nearly sufficient for this,
except for the need of multiple writers.
One easy fix would be to allow the owner of a path to be a group, and then
grant owner permissions to all members of that group. I have verified that HDP
1.3 allows you to set the owner of a path to a group without error, but the
owner permissions of that group are not given to members of the group.
I've created a relatively simple fix for this by modifying the "check" method
in src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSPermissionChecker.java and
I am working on related changes to unit tests etc now.
- Ryan
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