-Re: Recover dfs/name
Han JU 2013-06-05, 10:23
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
> On Wed, Jun 5, 2013 at 5:30 PM, Han JU <[EMAIL PROTECTED]> wrote:
>> 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?
>> *JU Han*
>> Software Engineer Intern @ KXEN Inc.
>> UTC - Université de Technologie de Compiègne
>> * **GI06 - Fouille de Données et Décisionnel*
>> +33 0619608888
> Ted Xu
Software Engineer Intern @ KXEN Inc.
UTC - Université de Technologie de Compiègne
* **GI06 - Fouille de Données et Décisionnel*