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List:       hadoop-user
Subject:    Re: Exception happen when start a single node
From:       Jeff Zhang <zjffdu () gmail ! com>
Date:       2010-01-29 14:40:44
Message-ID: 8211a1321001290640u457ba9t87d6a472642fa490 () mail ! gmail ! com
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Hi Nachiket,

Thank you for your reply. But I don't think the page you recommend can solve
my problem.
The problem on your page is try to solve the namespace version
incompatibility. But what I meet it build version incompatibility.



On Fri, Jan 29, 2010 at 12:43 AM, Nachiket Vaidya <vaidyand@gmail.com>wrote:

> Plz refer last part of this page
> 
> http://www.michael-noll.com/wiki/Running_Hadoop_On_Ubuntu_Linux_(Multi-Node_Cluster) \
> <http://www.michael-noll.com/wiki/Running_Hadoop_On_Ubuntu_Linux_%28Multi-Node_Cluster%29>
>  <
> http://www.michael-noll.com/wiki/Running_Hadoop_On_Ubuntu_Linux_(Multi-Node_Cluster) \
> <http://www.michael-noll.com/wiki/Running_Hadoop_On_Ubuntu_Linux_%28Multi-Node_Cluster%29>
> 
> > It
> contains a solution to the given problem.
> 
> - Nachiket
> 
> On Fri, Jan 29, 2010 at 3:55 AM, Jeff Zhang <zjffdu@gmail.com> wrote:
> 
> > Hi all,
> > 
> > One of my machine fall into the black list, then I want to restart it.
> But
> > exception happens as following:
> > 
> > 2010-01-29 10:32:23,247 FATAL
> > org.apache.hadoop.hdfs.server.datanode.DataNode: Incompatible build
> > versions: namenode BV = ; datanode BV = 810220
> > 2010-01-29 10:32:23,352 ERROR
> > org.apache.hadoop.hdfs.server.datanode.DataNode: java.io.IOException:
> > Incompatible build versions: namenode BV = ; datanode BV = 810220
> > at
> > 
> > 
> org.apache.hadoop.hdfs.server.datanode.DataNode.handshake(DataNode.java:436)
> > at
> > 
> > 
> org.apache.hadoop.hdfs.server.datanode.DataNode.startDataNode(DataNode.java:275)
> > at
> > org.apache.hadoop.hdfs.server.datanode.DataNode.<init>(DataNode.java:216)
> > at
> > 
> > 
> org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:1283)
> > at
> > 
> > 
> org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:1238)
> 
> > at
> > 
> > 
> org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:1246)
> > at
> org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:1368)
> > 
> > 2010-01-29 10:32:23,353 INFO
> > org.apache.hadoop.hdfs.server.datanode.DataNode: SHUTDOWN_MSG:
> > 
> > 
> > Anyone know this issue? I know that hadoop have a requirement that each
> > node's hadoop version should been the same, but does it also require the
> > same build version? And what determine the build version ?
> > 
> > 
> > --
> > Best Regards
> > 
> > Jeff Zhang
> > 
> 



-- 
Best Regards

Jeff Zhang



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