bharatviswa504 commented on pull request #1104:
URL: https://github.com/apache/hadoop-ozone/pull/1104#issuecomment-655806776
> > > > Question: Now when list at the root "/" with ofs filesystem, for
link buckets they will be displayed as a new entry of only resolved buckets
will be shown. What should be the behavior here.
> > >
> > >
> > > I'm afraid I don't understand the question. Can you please give an
example?
> >
> >
> > when user perform `ls` on volume/bucket, which has below buckets. It
will show only resolved buckets or all the buckets? Or it follows normal ls
semantics?
> > if it has mounted buckets
> > b1 -> b2
> > b2
> > b4 -> b5
> > what should be the behavior of ls in this case?
>
> Thanks for the clarification. `ls` on volume shows buckets and links in
that volume, will not resolve links. `ls` on bucket shows the keys in that
bucket. `ls` on link shows keys in the bucket that the link points to.
>
> Example created by the robot test:
>
> ```
> $ ozone fs -ls ofs://om/63433-target/
> Found 7 items
> drwxrwxrwx - hadoop hadoop 0 2020-07-07 05:50
ofs://om/63433-target/bucket3
> drwxrwxrwx - hadoop hadoop 0 2020-07-07 05:49
ofs://om/63433-target/dangling-link
> drwxrwxrwx - hadoop hadoop 0 2020-07-07 05:50
ofs://om/63433-target/link2
> drwxrwxrwx - hadoop hadoop 0 2020-07-07 05:51
ofs://om/63433-target/link3
> drwxrwxrwx - hadoop hadoop 0 2020-07-07 05:51
ofs://om/63433-target/loop1
> drwxrwxrwx - hadoop hadoop 0 2020-07-07 05:51
ofs://om/63433-target/loop2
> drwxrwxrwx - hadoop hadoop 0 2020-07-07 05:51
ofs://om/63433-target/loop3
> ```
>
> ```
> $ ozone fs -ls ofs://om/63433-source/bucket1
> Found 2 items
> -rw-rw-rw- 3 hadoop hadoop 671 2020-07-07 05:49
ofs://om/63433-source/bucket1/key1
> -rw-rw-rw- 3 hadoop hadoop 372 2020-07-07 05:51
ofs://om/63433-source/bucket1/key3
> ```
>
> ```
> $ ozone fs -ls ofs://om/63433-target/link3
> Found 2 items
> -rw-rw-rw- 3 hadoop hadoop 671 2020-07-07 05:49
ofs://om/63433-target/link3/key1
> -rw-rw-rw- 3 hadoop hadoop 372 2020-07-07 05:51
ofs://om/63433-target/link3/key3
> ```
>
> ```
> $ ozone sh bucket info /63433-target/link3
> {
> "volumeName" : "63433-target",
> "name" : "link3",
> ...
> "sourceVolume" : "63433-source",
> "sourceBucket" : "bucket1"
> }
> ```
Thanks for your clarification. Even ls on the filesystem is same behavior it
shows link also. I think we should be fine here.
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