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From "Uma Maheswara Rao G (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6283) Write end user documentation for xattrs.
Date Tue, 13 May 2014 18:30:18 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6283?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13996743#comment-13996743
] 

Uma Maheswara Rao G commented on HDFS-6283:
-------------------------------------------

Thanks a lot Andrew for the documentation!

Here are my quick comments on the patch!

dfs.namenode.inode.xattrs.max-limits  --> dfs.namenode.inode.xattrs.max-limit

{code}
* <<<dfs.namenode.inode.xattrs.name.max-length>>>
+
+  The maximum length of the name of an extended attribute. By default, this limit is 64 characters.
+
+  * <<<dfs.namenode.inode.xattrs.value.max-length>>>
+
+  The maximum length of the value of an extended attribute. By default, this limit is 16384
bytes.
{code}
Please update as per JIRA HDFS-6377
Also need update in hdfs-default.xml 

XAttrCommands is from common code, so can you leave that changes in that file here. May we
can handle that improvement as part of HADOOP-10561?

Dump all extended *attribute* values associated with pathname --> Dump all values of the
extended *attributes* associated with pathname
Displays the extended *attribute* names and values  --> Displays the names and values of
the extended *attributes* ?

> Write end user documentation for xattrs.
> ----------------------------------------
>
>                 Key: HDFS-6283
>                 URL: https://issues.apache.org/jira/browse/HDFS-6283
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: documentation
>            Reporter: Chris Nauroth
>            Assignee: Andrew Wang
>         Attachments: hdfs-6283-1.patch
>
>
> Update the File System Shell documentation to cover the new getfattr and setfattr commands.
 If warranted, consider adding a separate dedicated page for fuller discussion of the xattrs
model and how the feature works in more detail.



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