Nope. Sorry :(
On Mon, Jun 2, 2014 at 1:31 PM, Amjad ALSHABANI <ashshab...@gmail.com> wrote: > Thanx Zesheng, > > I should admit that I m not an expert in Hadoop infrastructure, but I have > heard my colleagues talking about HDFS replicas? > Couldn't that help in retrieving the lost data?? > > Amjad > > > On Fri, May 30, 2014 at 1:44 PM, Zesheng Wu <wuzeshen...@gmail.com> wrote: > >> I am afraid this cannot undo, in HDFS only the data which is deleted by >> the dfs client and goes into the trash can be undone. >> >> >> 2014-05-30 18:18 GMT+08:00 Amjad ALSHABANI <ashshab...@gmail.com>: >> >> Hello Everybody, >>> >>> I ve made a mistake when writing to HDFS. I created new database in Hive >>> giving the location on HDFS but I found that it removed all other data that >>> exist already. >>> >>> ===== >>> before creation, the directory on HDFS contains : >>> pns@app11:~$ hadoop fs -ls /user/hive/warehouse >>> Found 25 items >>> drwxr-xr-x - user1 supergroup 0 2013-11-20 13:40 >>> */user/hive/warehouse/*dfy_ans_autres >>> drwxr-xr-x - user1 supergroup 0 2013-11-20 13:40 >>> /user/hive/warehouse/dfy_ans_maillog >>> drwxr-xr-x - user1 supergroup 0 2013-11-20 14:28 >>> /user/hive/warehouse/dfy_cnx >>> drwxr-xr-x - user2 supergroup 0 2014-05-30 06:05 >>> /user/hive/warehouse/pns.db >>> drwxr-xr-x - user2 supergroup 0 2014-02-24 17:00 >>> /user/hive/warehouse/pns_fr_integ >>> drwxr-xr-x - user2 supergroup 0 2014-05-06 15:33 >>> /user/hive/warehouse/pns_logstat.db >>> ... >>> ... >>> ... >>> >>> >>> hive -e "CREATE DATABASE my_stats LOCATION 'hdfs://XXXX:9000 >>> */user/hive/warehouse/*mystats.db'" >>> >>> but now I couldn't see the other directories on HDFS: >>> >>> pns@app11:~/aalshabani$ hls /user/hive/warehouse >>> Found 1 items >>> drwxr-xr-x - user2 supergroup 0 2014-05-30 11:37 >>> */user/hive/warehouse*/mystats.db >>> >>> >>> Is there anyway I could restore the other directories?? >>> >>> >>> Best regards. >>> >> >> >> >> -- >> Best Wishes! >> >> Yours, Zesheng >> > > -- Regards, Varun Kumar.P
