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https://issues.apache.org/jira/browse/HADOOP-7286?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13034441#comment-13034441
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Daryn Sharp commented on HADOOP-7286:
-------------------------------------
The changes were deliberate on my part. Here's my thoughts: FsShell tries to
implement posix/unix-like commands, but does so in its own "uniquely"
inconsistent fashion which is a surprise to any shell coder. IMHO, if FsShell
wants to be unix-like, then it's output should look unix-like, or at a minimum
be self-consistent.
I think du is the only command that is "noticably" different, particularly with
regard to the subtraction of the header. I checked "du" on various systems and
didn't find any that printed "Found XXX items". Going forward, I think du
should be able to traverse more than one level deep, at which point it becomes
prohibitively expensive for du to sponge memory to batch up all the output just
so it can print a total on the first line.
Regarding the path display, it's been a universal change to standardize how
paths are displayed since the commands' errors and output used to be wildly
inconsistent. Typically what you give on the cmdline is now what you get back,
just like you would expect from a unix-like system. Although, I can tweak the
du output to be absolute uris if necessary.
> Refactor FsShell's du/dus/df
> ----------------------------
>
> Key: HADOOP-7286
> URL: https://issues.apache.org/jira/browse/HADOOP-7286
> Project: Hadoop Common
> Issue Type: Improvement
> Components: fs
> Affects Versions: 0.23.0
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Attachments: HADOOP-7286-2.patch, HADOOP-7286-3.patch,
> HADOOP-7286-4.patch, HADOOP-7286.patch
>
>
> Need to refactor to conform to FsCommand subclass.
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