[jira] [Created] (HDFS-6620) Snapshot docs should specify about preserve options with cp command

["Uma Maheswara Rao G (JIRA)" <ji...@apache.org>]

Uma Maheswara Rao G created HDFS-6620:
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             Summary: Snapshot docs should specify about preserve options with cp command
                 Key: HDFS-6620
                 URL: https://issues.apache.org/jira/browse/HDFS-6620
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: namenode
    Affects Versions: 3.0.0, 2.5.0
            Reporter: Uma Maheswara Rao G


Currently snapshot docs contains the cp command details for copying the snapshot files to regular dfs tree.

http://hadoop.apache.org/docs/r2.3.0/hadoop-project-dist/hadoop-hdfs/HdfsSnapshots.html#Snapshot_Paths

Copying a file from snapshot s0:
hdfs dfs -cp /foo/.snapshot/s0/bar /tmp

Since there are important properties(acls, xattrs..etc) for a file may need to copy back. But looking at this doc may mislead to copy with out using any options. So, It may be worth mentioning aboit that properties. Infact it should copy all properties  by default from snapshot file. 



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