Hello!
Really thank you for your answers. Unfortunately in the mentioned version
(hadoop-core-0.20.2-cdh3u1) from cloudera, this feature didn't work. I've
"managed" to delete /user/{user.name} with its content without any error
thrown. Also, I've looking for a ".Trash" folder for different users but it
doesn't exist.
Any ideas?
Regards,
Florin
--- On Thu, 6/9/11, Harsh J <ha...@cloudera.com> wrote:
> From: Harsh J <ha...@cloudera.com>
> Subject: Re: When rmr and rm strike
> To: hdfs-user@hadoop.apache.org
> Date: Thursday, June 9, 2011, 8:22 AM
> Florin,
>
> Jakob's explained where the trashed files would go
> (/user/{user.name}/.Trash/).
> Interestingly, this would also safeguard against deleting
> your own
> home directory with an error such as:
>
> ➜ ~ hadoop dfs -rmr /user/harsh
> Problem with Trash.. Consider using -skipTrash option
> rmr: Cannot move "hdfs://localhost/user/harsh" to the
> trash, as it
> contains the trash
>
> Regarding the Cloudera bits; you're welcome to post
> Cloudera usage
> questions at cdh-u...@cloudera.org
> lists (
> https://groups.google.com/a/cloudera.org/group/cdh-user/topics
> ).
>
> On Thu, Jun 9, 2011 at 4:35 PM, Jakob Homan <jgho...@gmail.com>
> wrote:
> > files that have been rm'ed but not yet expunged are
> stored in each
> > user's .Trash folder within their home directory.
> This is the
> > safeguard against accidentally deleting files; adding
> a prompt is a
> > non-starter.
> >
> > On Thu, Jun 9, 2011 at 2:17 AM, Florin P <florinp...@yahoo.com>
> wrote:
> >> Ok..Thank you...But where the deleted files are
> stored? From which directory I can recover them? Is there
> any property to set up this folder where deleted files are
> kept? I've read something on the net, but since cloudera
> version differs from the hadoop version (in some parts), all
> the time I have to be sure that I'm properly doing the right
> thing.
> >> Again thank for your answers... They are very
> helpful.
> >>
> >> --- On Thu, 6/9/11, Harsh J <ha...@cloudera.com>
> wrote:
> >>
> >>> From: Harsh J <ha...@cloudera.com>
> >>> Subject: Re: When rmr and rm strike
> >>> To: hdfs-user@hadoop.apache.org
> >>> Date: Thursday, June 9, 2011, 3:52 AM
> >>> Florin,
> >>>
> >>> In core-site.xml, simply set a value for
> >>> "fs.trash.interval" as the
> >>> number of minutes you want the trash to retain
> items. A
> >>> generally good
> >>> value is 24 hours, i.e. "1440" minutes.
> >>>
> >>> On Thu, Jun 9, 2011 at 12:07 PM, Florin P
> <florinp...@yahoo.com>
> >>> wrote:
> >>> > Hello!
> >>> > Thank you for you response. Regarding
> the Trash
> >>> feature, how can we properly configure this
> feature (config
> >>> files etc) in the mentioned hadoop version?
> The information
> >>> that I've taken from the Guide
> >>> (http://hadoop.apache.org/common/docs/r0.20.2/hdfs_design.html)
> >>> is a little bit vague.
> >>> > Thank you again.
> >>> > Regards,
> >>> > Florin
> >>> >
> >>> > --- On Wed, 6/8/11, Harsh J <ha...@cloudera.com>
> >>> wrote:
> >>> >
> >>> >> From: Harsh J <ha...@cloudera.com>
> >>> >> Subject: Re: When rmr and rm strike
> >>> >> To: hdfs-user@hadoop.apache.org
> >>> >> Date: Wednesday, June 8, 2011, 6:39
> AM
> >>> >> A question prompt option must be
> >>> >> added, agreed.
> >>> >>
> >>> >> For your recovery question, did
> you/do you have
> >>> the HDFS
> >>> >> Trash feature
> >>> >> enabled in your cluster?
> >>> >>
> >>> >> On Wed, Jun 8, 2011 at 2:20 PM,
> Florin P <florinp...@yahoo.com>
> >>> >> wrote:
> >>> >> > Hello!
> >>> >> > I'm using the hadoop version
> from
> >>> cloudera
> >>> >>
> hadoop-core-0.20.2-cdh3u1-SNAPSHOT.jar.
> >>> >> > Today I've made a mistake.
> I have
> >>> deleted my
> >>> >> user from HDFS with the command
> >>> >> > hadoop fs -rmr
> /user/my_user
> >>> >> >
> >>> >> > No question: are you sure to
> delete? Are you
> >>> really
> >>> >> sure?
> >>> >> > So panic...what to do? How can I
> recover my
> >>> lost
> >>> >> data?
> >>> >> > From the above real scenario,
> the
> >>> following
> >>> >> improvements and questions can
> incur:
> >>> >> > 1. Add a question when you are
> deleting a
> >>> folder or a
> >>> >> file, such as "Are you sure you want
> to delete
> >>> X?"
> >>> >> > 2. In order to automate the
> delete process
> >>> and surpass
> >>> >> the above question, add an option to
> pass the
> >>> answer to it
> >>> >> (sometimes you need this feature)
> >>> >> > 3. How can recover a deleted
> "user" with its
> >>> >> associated data (in my case
> "my_user")
> >>> >> > 4. Where goes the data from a
> deleted folder
> >>> with the
> >>> >> "rmr" otion?
> >>> >> > 5. Where goes the data from a
> deleted folder
> >>> with the
> >>> >> "rm" otion?
> >>> >> > 6. How can be recovered
> (undeleted) the data
> >>> deleted
> >>> >> from question 4 and 5?
> >>> >> >
> >>> >> > Thank you for your answers.
> >>> >> >
> >>> >> > Kind regards,
> >>> >> > Florin
> >>> >> >
> >>> >> >
> >>> >> >
> >>> >> >
> >>> >> >
> >>> >> >
> >>> >>
> >>> >>
> >>> >>
> >>> >> --
> >>> >> Harsh J
> >>> >>
> >>> >
> >>>
> >>>
> >>>
> >>> --
> >>> Harsh J
> >>>
> >>
> >
>
>
>
> --
> Harsh J
>
