It might be too late now since this is several hours ago, but you might have been able to recover some of it by shutting down the DNs, and restoring a previous fsimage (you *are* checkpointing, aren't you?).
On Thu, Apr 26, 2012 at 4:22 PM, M. C. Srivas <mcsri...@gmail.com> wrote: > Do you have snapshots? Or other forms of backup? Otherwise you are > basically out of luck. > > > On Thu, Apr 26, 2012 at 11:00 AM, varun kumar <varun....@gmail.com> wrote: > >> Thanks for your quick reply john. >> >> I have't configured *fs.trash.interval* in my core-site.xml,after this >> disaster i have configured,Is there any other option to retrieve the data >> back. >> >> Regards, >> Varun Kumar.P >> >> On Thu, Apr 26, 2012 at 7:19 PM, John George <john...@yahoo-inc.com>wrote: >> >>> If you did not use –skipTrash, the file should be in your trash. Refer: >>> http://hadoop.apache.org/common/docs/current/hdfs_design.html#File+Deletes+and+Undeletes >>> for >>> more information. >>> >>> From: varun kumar <varun....@gmail.com> >>> Reply-To: "hdfs-user@hadoop.apache.org" <hdfs-user@hadoop.apache.org> >>> Date: Thu, 26 Apr 2012 05:15:10 -0700 >>> To: "common-u...@hadoop.apache.org" <common-u...@hadoop.apache.org> >>> Cc: "hdfs-user@hadoop.apache.org" <hdfs-user@hadoop.apache.org> >>> Subject: HDFS Files Deleted >>> >>> Dear All, >>> >>> By Mistake i have deleted file in from HDFS using the command: >>> >>> hadoop dfs -rmr /* >>> >>> Is there any way to retrieve the deleted data. >>> >>> -- >>> Regards, >>> Varun Kumar.P >>> >>> >> >> >> -- >> Regards, >> Varun Kumar.P >> >> >
