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 >> >
