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From "Zhu Huijun" <nautilu...@gmail.com>
Subject Re: IncorrecteVersionException in installing Hadoop
Date Thu, 21 Feb 2008 23:00:57 GMT
Sorry to bother. I cleared the hadoop directory on each node, then
re-formatted it, the problem is solved.

2008/2/21, Zhu Huijun <nautilushj@gmail.com>:
>
> Hi,
>
> I have a problem running Hadoop on our cluster. After I formated the
> namenode by executing "./bin/hadoop namenode -format", and started the dfs
> by executing "./bin/start-dfs.sh", I can access the webpage of namenode at
> http://localhost:50070, but the number of live data nodes is 0. If I run
> "./bin/stop-dfs.sh", there are messages of "no datanode to stop" after
> each ip addresses of the slave nodes listed in the /conf/slaves file. I
> found the following error in the log files:
>
> ERROR org.apache.hadoop.dfs.DataNode:
> org.apache.hadoop.dfs.IncorrectVersionException: Unexpected version of
> storage directory /tmp/hadoop-zhuhj/dfs/data. Reported: -11. Expecting =
> -10.
>
> However, I check the file of /tmp/hadoop-zhuhj/dfs/data/current/VERSION,
> it says  "layoutVersion=-10".
>
> I appreciate that anyone can give me some hint about what the problem is.
> Thanks!
>
> Best wishes!
>
>
>
>

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