Hi Han, HDFS metadata cannot be fully reconstructed by datanode report.
If you have deployed a checkpoint node/secondary namenode, you can copy the metadata to namenode and restart. This could recover most of the metadata. On Wed, Jun 5, 2013 at 5:30 PM, Han JU <[email protected]> wrote: > Hi, > > The folder /tmp/hadoop-user/dfs/name is accidentally deleted by a > colleague (along with all other things in this directory), is there any > means to recover this directory? > I know the directory where dfs is located in every datanode. Can I > reconstruct the deleted files without formatting the hdfs? > > Thanks! > > -- > *JU Han* > > Software Engineer Intern @ KXEN Inc. > UTC - Université de Technologie de Compiègne > * **GI06 - Fouille de Données et Décisionnel* > > +33 0619608888 > -- Regards, Ted Xu
