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Hadoop >> mail # user >> getting UnknownHostException


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Sujit Dhamale 2012-04-12, 17:41
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madhu phatak 2012-04-13, 05:19
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Re: getting UnknownHostException
hi Madhu,
After doing Modification in /ets/host it's working fine

Thanks a lot :)

Kind Regards
Sijit Dhamale
(+91 9970086652)

On Fri, Apr 13, 2012 at 10:49 AM, madhu phatak <[EMAIL PROTECTED]> wrote:

> Please check contents of /etc/hosts for the hostname and ipaddress mapping.
>
> On Thu, Apr 12, 2012 at 11:11 PM, Sujit Dhamale <[EMAIL PROTECTED]
> >wrote:
>
> > Hi Friends ,
> > i am getting UnknownHostException while executing Hadoop Word count
> program
> >
> > getting below details from job tracker Web page
> >
> > *User:* sujit
> > *Job Name:* word count
> > *Job File:*
> >
> >
> hdfs://localhost:54310/app/hadoop/tmp/mapred/staging/sujit/.staging/job_201204112234_0002/job.xml<
> > http://localhost:50030/jobconf.jsp?jobid=job_201204112234_0002>
> > *Submit Host:* sujit.(null)
> > *Submit Host Address:* 127.0.1.1
> > *Job-ACLs: All users are allowed*
> > *Job Setup:*None
> > *Status:* Failed
> > *Failure Info:*Job initialization failed: java.net.UnknownHostException:
> > sujit.(null) is not a valid Inet address at org.apache.hadoop.net.
> > NetUtils.verifyHostnames(NetUtils.java:569) at
> > org.apache.hadoop.mapred.JobInProgress.initTasks(JobInProgress.java:711)
> at
> > org.apache.hadoop.mapred.JobTracker.initJob(JobTracker.java:4207) at
> >
> >
> org.apache.hadoop.mapred.EagerTaskInitializationListener$InitJob.run(EagerTaskInitializationListener.java:79)
> > at
> >
> >
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> > at
> >
> >
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> > at java.lang.Thread.run(Thread.java:662)
> > *Started at:* Wed Apr 11 22:36:46 IST 2012
> > *Failed at:* Wed Apr 11 22:36:47 IST 2012
> > *Failed in:* 0sec
> > *Job Cleanup:*None
> >
> >
> >
> >
> > Can some one help me how to resolve this issue .
> > i tried with : http://wiki.apache.org/hadoop/UnknownHost
> >
> > but still not able to resolve issue ,
> > please help me out .
> >
> >
> > Hadoop Version: hadoop-1.0.1.tar.gz
> > java version "1.6.0_30"
> > Operating System : Ubuntu 11.10
> >
> >
> > *Note *: All node were up before starting execution of Program
> >
> > Kind Regards
> > Sujit Dhamale
> > <http://wiki.apache.org/hadoop/UnknownHost>
> >
>
>
>
> --
> https://github.com/zinnia-phatak-dev/Nectar
>
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB