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From "Harsh J (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8688) Hadoop in Pseudo-Distributed mode on Mac OS X 10.8
Date Mon, 13 Aug 2012 03:57:37 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8688?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13432903#comment-13432903
] 

Harsh J commented on HADOOP-8688:
---------------------------------

Hi Subho,

Please redirect your question to the user@hadoop.apache.org lists. The JIRA is for identified
bugs on the project, not user support.

P.s. "Unable to load realm info from SCDynamicStore" warnings shouldn't block out functionality,
and is more of an annoyance than anything else. 403 suggests a permission issue of some sort,
and I'd look at the TaskTracker logs for any logs from org.mortbay package classes. In any
case, please do send your issue to user@hadoop.apache.org and am sure the community will help
you out.
                
> Hadoop in Pseudo-Distributed mode on Mac OS X 10.8
> --------------------------------------------------
>
>                 Key: HADOOP-8688
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8688
>             Project: Hadoop Common
>          Issue Type: Bug
>         Environment: Mac OS X 10.8, Java_1.6.0_33-b03-424
>            Reporter: Subho Banerjee
>            Priority: Minor
>
> 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'

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