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MapReduce >> mail # user >> Problem running PI example in Hadoop 2.0.0


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Re: Problem running PI example in Hadoop 2.0.0
that's ubuntu for you. I'll update the wiki
On 10 August 2012 10:54, Arjun Reddy <[EMAIL PROTECTED]> wrote:

> I removed the entry 127.0.1.1 in /etc/hosts on all the nodes and the
> cluster is working fine now.  Thank you very much for your help.
>
>
> On Thu, Aug 9, 2012 at 3:15 PM, Steve Loughran <[EMAIL PROTECTED]>wrote:
>
>>
>>
>>  On 9 August 2012 10:31, Arjun Reddy <[EMAIL PROTECTED]> wrote:
>>
>>> I did go through the 6 steps listed at the link and telnet to port
>>> 45965 is failing.  Netstat -a shows nothing is listing on port 45965.
>>>
>>
>>
>> That's a high number - I wonder if it's something transient that didn't
>> start.
>>
>> I worry about the 127.0.1.1 number in the hostname -try editing
>> /etc/hosts to 127.0.0.1 to see if that helps; it could just be some
>> listening on a different port
>>
>>
>>>
>>> We can run hadoop 1.0.3 version without any issues on this cluster and I
>>> am new to 2.0.0 version.  I followed the document
>>> http://hadoop.apache.org/common/docs/r2.0.0-alpha/hadoop-yarn/hadoop-yarn-site/ClusterSetup.html to
>>> setup the config files.  Is there any other good document that describes
>>> how to set up version 2.0.0.
>>>
>>> Thanks
>>> Arjun
>>>
>>>  On Thu, Aug 9, 2012 at 11:47 AM, Steve Loughran <[EMAIL PROTECTED]
>>> > wrote:
>>>
>>>>
>>>>
>>>>  On 8 August 2012 14:39, Arjun Reddy <[EMAIL PROTECTED]> wrote:
>>>>
>>>>>  I am trying to setup a small cluster using hadoop 2.0.0 and using PI
>>>>> example to validate the setup.  When I have 1 master and 1 slave the
>>>>> example works fine.  I am getting exceptions with the PI example when
>>>>> additional slave nodes are added to the cluster.  The syslogs for failed
>>>>> tasks are as follows.  Any ideas why this is happening.
>>>>>
>>>>>
>>>>> .
>>>>> 2012-08-08 15:41:30,492 WARN [main]
>>>>> org.apache.hadoop.mapred.YarnChild: Exception running child :
>>>>> java.net.ConnectException: Call From node2/127.0.1.1 to node2:45965
>>>>> failed on connection exception: java.net.ConnectException: Connection
>>>>> refused; For more details see:
>>>>> http://wiki.apache.org/hadoop/ConnectionRefused
>>>>>         at
>>>>> org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:727)
>>>>>         at org.apache.hadoop.ipc.Client.call(Client.java:1165)
>>>>>         at
>>>>> org.apache.hadoop.ipc.WritableRpcEngine$Invoker.invoke(WritableRpcEngine.java:224)
>>>>>         at $Proxy6.getTask(Unknown Source)
>>>>>         at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:123)
>>>>>
>>>>>  did you follow the link in this message?
>>>>
>>>> If so, did you follow all the actions?
>>>>
>>>>
>>>
>>
>>
>> --
>> Steve Loughran
>> Hortonworks Inc
>> [EMAIL PROTECTED]
>> skype: steve_loughran
>> tel: +1 408 400 3721
>>
>>  <http://hortonworks.com/download/>
>>
>>
>>
>
--
Steve Loughran
Hortonworks Inc
[EMAIL PROTECTED]
skype: steve_loughran
tel: +1 408 400 3721

<http://hortonworks.com/download/>
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