You may want to check importcheckpoint option too
http://hadoop.apache.org/hdfs/docs/current/hdfs_user_guide.html#Import+Checkpoint
Boris.
On 9/17/10 1:36 AM, "ChingShen" wrote:
I think I got it!
Step by step as following:
1. put two files into hdfs.
2. kill -9 ${namenode_pid}.
3. delete t
On Sep 17, 2010, at 1:36 AM, ChingShen wrote:
> I think I got it!
>
> Step by step as following:
>
> 1. put two files into hdfs.
> 2. kill -9 ${namenode_pid}.
> 3. delete the whole ${hadoop.tmp.dir}/dfs directory of NN.
> 4. copy the dfs directory of BN to NN.
> 5. start-up NN.
>
> It works. I
I think I got it!
Step by step as following:
1. put two files into hdfs.
2. kill -9 ${namenode_pid}.
3. delete the whole ${hadoop.tmp.dir}/dfs directory of NN.
4. copy the dfs directory of BN to NN.
5. start-up NN.
It works. Is it correct?
Shen
On Fri, Sep 17, 2010 at 2:58 PM, ChingShen
Hi all,
I have a Backup Node (BN) and a active NameNode (NN), but if NN failed,
how to recover the NN? Is possible BN replace NN directly? Any resources?
Shen
