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From Harsh J <ha...@cloudera.com>
Subject Re: Hadoop in Pseudo-Distributed
Date Mon, 13 Aug 2012 09:17:08 GMT
Subho,

Can you try to tweak the "mapred.task.tracker.http.address" in
mapred-site.xml, and set it to always bind to localhost? (i.e. set it
to "localhost:50060", instead of default "0.0.0.0:50060") and then see
if you get this behavior?

On Mon, Aug 13, 2012 at 12:37 PM, Subho Banerjee <subs.zero@gmail.com> wrote:
> Yes I did that already as I had mentioned in my previous mail, yet I am
> having the problem.
>
> I was just trying something, and I came across some really weird behaviour,
> the moment I disconnect from my local network(unplug my LAN cable) and try
> to run this, it works just fine. But when I am connected to my network, it
> gives me the error I listed above.
>
>
> On Mon, Aug 13, 2012 at 11:11 AM, Devaraj k <devaraj.k@huawei.com> wrote:
>>
>> Can you go through this issue
>> https://issues.apache.org/jira/browse/HADOOP-7489, It is discussed and
>> provided some workarounds for this problem.
>>
>>
>>
>>
>>
>> Thanks
>>
>> Devaraj
>>
>> ________________________________
>> From: Subho Banerjee [subs.zero@gmail.com]
>> Sent: Monday, August 13, 2012 10:47 AM
>> To: user@hadoop.apache.org
>> Subject: Hadoop in Pseudo-Distributed
>>
>> Hello,
>>
>> I am running hadoop v1.0.3 in Mac OS X 10.8 with Java_1.6.0_33-b03-424
>>
>>
>> When running hadoop on pseudo-distributed mode, the map seems to work, but
>> it cannot compute the reduce.
>>
>> 12/08/13 08:58:12 INFO mapred.JobClient: Running job:
>> job_201208130857_0001
>> 12/08/13 08:58:13 INFO mapred.JobClient: map 0% reduce 0%
>> 12/08/13 08:58:27 INFO mapred.JobClient: map 20% reduce 0%
>> 12/08/13 08:58:33 INFO mapred.JobClient: map 30% reduce 0%
>> 12/08/13 08:58:36 INFO mapred.JobClient: map 40% reduce 0%
>> 12/08/13 08:58:39 INFO mapred.JobClient: map 50% reduce 0%
>> 12/08/13 08:58:42 INFO mapred.JobClient: map 60% reduce 0%
>> 12/08/13 08:58:45 INFO mapred.JobClient: map 70% reduce 0%
>> 12/08/13 08:58:48 INFO mapred.JobClient: map 80% reduce 0%
>> 12/08/13 08:58:51 INFO mapred.JobClient: map 90% reduce 0%
>> 12/08/13 08:58:54 INFO mapred.JobClient: map 100% reduce 0%
>> 12/08/13 08:59:14 INFO mapred.JobClient: Task Id :
>> attempt_201208130857_0001_m_000000_0, Status : FAILED
>> Too many fetch-failures
>> 12/08/13 08:59:14 WARN mapred.JobClient: Error reading task outputServer
>> returned HTTP response code: 403 for URL:
>> http://10.1.66.17:50060/tasklog?plaintext=true&attemptid=attempt_201208130857_0001_m_000000_0&filter=stdout
>> 12/08/13 08:59:14 WARN mapred.JobClient: Error reading task outputServer
>> returned HTTP response code: 403 for URL:
>> http://10.1.66.17:50060/tasklog?plaintext=true&attemptid=attempt_201208130857_0001_m_000000_0&filter=stderr
>> 12/08/13 08:59:18 INFO mapred.JobClient: map 89% reduce 0%
>> 12/08/13 08:59:21 INFO mapred.JobClient: map 100% reduce 0%
>> 12/08/13 09:00:14 INFO mapred.JobClient: Task Id :
>> attempt_201208130857_0001_m_000001_0, Status : FAILED
>> Too many fetch-failures
>>
>> Here is what I get when I try to see the tasklog using the links given in
>> the output
>>
>>
>> http://10.1.66.17:50060/tasklog?plaintext=true&attemptid=attempt_201208130857_0001_m_000000_0&filter=stderr
>> --->
>> 2012-08-13 08:58:39.189 java[74092:1203] Unable to load realm info from
>> SCDynamicStore
>>
>>
>> http://10.1.66.17:50060/tasklog?plaintext=true&attemptid=attempt_201208130857_0001_m_000000_0&filter=stdout
>> --->
>>
>> I have changed my hadoop-env.sh acoording to Mathew Buckett in
>> https://issues.apache.org/jira/browse/HADOOP-7489
>>
>> Also this error of Unable to load realm info from SCDynamicStore does not
>> show up when I do 'hadoop namenode -format' or 'start-all.sh'
>>
>> I am also attaching a zipped copy of my logs
>>
>>
>> Cheers,
>>
>> Subho.
>>
>>
>



-- 
Harsh J

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