Thanks Ted. In fact it's an experimental cluster so no checkpointing... and snn is running in the same machine as nn, so I think its copy of metadata is also deleted by my colleague ...
Does this mean that I have no choice but format/start over my HDFS? 2013/6/5 Ted Xu <[email protected]> > 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 > -- *JU Han* Software Engineer Intern @ KXEN Inc. UTC - Université de Technologie de Compiègne * **GI06 - Fouille de Données et Décisionnel* +33 0619608888
