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
