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From anil gupta <anilgupt...@gmail.com>
Subject Re: Problem with one of teh datanodes
Date Sun, 09 Sep 2012 07:30:32 GMT
Hi Siddharth,

This is a very common error faced by users after formatting namenode. You
need to clean up your dfs data directories across the cluster. This
discussion will help you resolve this:
http://search-hadoop.com/m/iAeEh1gvLE2/Incompatible+namepaceIDs&subj=RE+Incompatible+namespaceIDs+after+formatting+namenode

HTH,
Anil

On Sat, Sep 8, 2012 at 1:39 AM, Siddharth Tiwari
<siddharth.tiwari@live.com>wrote:

>  Oh yes I did reformat namenode. Can you guide me on how to resolve this
> issue ?
>
>
> **------------------------**
> *Cheers !!!*
> *Siddharth Tiwari*
> Have a refreshing day !!!
> *"Every duty is holy, and devotion to duty is the highest form of worship
> of God.” *
> *"Maybe other people will try to limit me but I don't limit myself"*
>
>
> ------------------------------
> From: Serge.Blazhiyevskyy@nice.com
> To: user@hadoop.apache.org
> Date: Sat, 8 Sep 2012 02:32:08 -0600
> Subject: Re: Problem with one of teh datanodes
>
>
>  That's normally happen if yoiu reforemat namenode
>
>  *From*: Siddharth Tiwari [mailto:siddharth.tiwari@live.com]
> *Sent*: Saturday, September 08, 2012 02:05 AM
> *To*: USers Hadoop <user@hadoop.apache.org>
> *Subject*: Problem with one of teh datanodes
>
>  Hi users,
>
> Suddenly I have started getting the following error on one of my
> datanodes. Can you please help me on this. Also, what could be probable
> cause and reasons for it to occur.
>
>  ERROR org.apache.hadoop.hdfs.server.datanode.DataNode:
> java.io.IOException: Incompatible namepaceIDs
>
> Thank you !!!
>
>
> **------------------------**
> *Cheers !!!*
> *Siddharth Tiwari*
> Have a refreshing day !!!
> *"Every duty is holy, and devotion to duty is the highest form of worship
> of God.” *
> *"Maybe other people will try to limit me but I don't limit myself"*
>



-- 
Thanks & Regards,
Anil Gupta

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