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Date: Fri, 6 Jun 2014 21:36:01 +0000 (UTC)
From: "Brandon Li (JIRA)" <jira@apache.org>
To: hdfs-dev@hadoop.apache.org
Message-ID: <JIRA.12718944.1402090490069.85025.1402090561836@arcas>
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Subject: [jira] [Created] (HDFS-6498) Support squash and range in NFS static
 user id mapping
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Brandon Li created HDFS-6498:
--------------------------------

             Summary: Support squash and range in NFS static user id mapping 
                 Key: HDFS-6498
                 URL: https://issues.apache.org/jira/browse/HDFS-6498
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: nfs
            Reporter: Brandon Li


HDFS-6435 adds static user group name id mapping. The mapping is a one to one mapping. 

What makes this feature easy to use is to support squash and range based mapping as that in traditional NFS configuration (e.g., http://manpages.ubuntu.com/manpages/hardy/man5/exports.5.html)
{noformat}
# Mapping for client foobar:
#    remote     local
uid  0-99       -       # squash these
uid  100-500    1000    # map 100-500 to 1000-1500
gid  0-49       -       # squash these
gid  50-100     700     # map 50-100 to 700-750
{noformat}


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