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https://issues.apache.org/jira/browse/HADOOP-10561?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yi Liu updated HADOOP-10561:
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Attachment: HADOOP-10561.1.patch
HADOOP-10561.1.patch
Thanks @Charles Lamb for your comments. The new patch includes update for your
comments.
{quote}
The usage message is a little bit confusing. At first it was unclear to me that
-ptopx was really -p with options for t, o, p, and x. I would if we could make
this a little clearer by saying something like this instead?
public static final String USAGE = "\[-f\] \[-p | -p\[t|o|p|x\]\] <src> ...
<dst>";
or maybe
public static final String USAGE = "\[-f\] \[-p | -p\[topx\]\] <src> ... <dst>";
{quote}
OK, let's use the {{\[-f\] \[-p | -p\[topx\]\] <src> ... <dst>}}. For the
detail, user can get from {{hadoop fs -usage cp}}
{quote}
+ "must be a directory. Passing -p preserves status\n" +
+ "(\[topx\]) (timestamps, ownership, permission, XATTR). \n" +
+ "If -p is specified with no <arg>, then preserves " +
+ "timestamps, ownership, permission. Passing -f\n" +
Also, s/XATTR/XAttr/.
{quote}
Right, I change {{XATTR}} to {{xattr}}.
> Copy command with preserve option should handle Xattrs
> ------------------------------------------------------
>
> Key: HADOOP-10561
> URL: https://issues.apache.org/jira/browse/HADOOP-10561
> Project: Hadoop Common
> Issue Type: Improvement
> Components: fs
> Affects Versions: 3.0.0
> Reporter: Uma Maheswara Rao G
> Assignee: Yi Liu
> Attachments: HADOOP-10561.1.patch, HADOOP-10561.1.patch,
> HADOOP-10561.patch
>
>
> The design docs for Xattrs stated that we handle preserve options with copy
> commands
> From doc:
> Preserve option of commands like “cp -p” shell command and “distcp -p” should
> work on XAttrs.
> In the case of source fs supports XAttrs but target fs does not support,
> XAttrs will be ignored
> with warning message
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