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From Steve Loughran <ste...@apache.org>
Subject Re: TaskTracker and DataNodes cannot connect to master node (NoRouteToHostException)
Date Wed, 26 May 2010 09:56:01 GMT
Hemanth Yamijala wrote:
> Erik,
> 
>> I've been unable to resolve this problem on my own so I've decided to ask
>> for help. I've pasted the logs I have for the DataNode on of the slave
>> nodes. The logs for TaskTracker are essentially the same (i.e. same
>> exception causing a shutdown).
>>
>> Any suggestions or hints as to what could be causing this problem?
>>
>> STARTUP_MSG: Starting DataNode
>> STARTUP_MSG:   host = localhost.localdomain/127.0.0.1
>> STARTUP_MSG:   args = []
>> STARTUP_MSG:   version = 0.20.2
>> STARTUP_MSG:   build =
>> https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.20 -r

that looks to me like the DN doesn't know who it is or where; check it's 
networking

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