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From "Edward J. Yoon (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HAMA-126) In random_mapred(), IntWritable(m) should be IntWritable(m-1) since start from 0.
Date Mon, 08 Dec 2008 07:28:44 GMT

     [ https://issues.apache.org/jira/browse/HAMA-126?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Edward J. Yoon updated HAMA-126:
--------------------------------

    Status: Patch Available  (was: Open)

Local test passed. and wrong dimension size fixed.
But, I'm still receive below error. It seems another problem.

----
08/12/08 16:26:56 INFO mapred.JobClient:     Reduce input groups=2500
08/12/08 16:26:56 INFO mapred.JobClient:     Combine output records=0
08/12/08 16:26:56 INFO mapred.JobClient:     Map input records=9887
08/12/08 16:26:56 INFO mapred.JobClient:     Reduce output records=0
08/12/08 16:26:56 INFO mapred.JobClient:     Map output bytes=1678114730
08/12/08 16:26:56 INFO mapred.JobClient:     Map input bytes=0
08/12/08 16:26:56 INFO mapred.JobClient:     Combine input records=0
08/12/08 16:26:56 INFO mapred.JobClient:     Map output records=494350
08/12/08 16:26:56 INFO mapred.JobClient:     Reduce input records=494350
08/12/08 16:27:02 INFO hama.AbstractMatrix: Convert to 50 * 50 blocked matrix
08/12/08 16:27:02 WARN mapred.JobClient: Use GenericOptionsParser for parsing the arguments.
Applications should implement Tool for the same.
08/12/08 16:27:02 WARN mapred.JobClient: Use genericOptions for the option -libjars
08/12/08 16:27:02 WARN mapred.JobClient: No job jar file set.  User classes may not be found.
See JobConf(Class) or JobConf#setJar(String).
08/12/08 16:27:02 INFO mapred.JobClient: Running job: job_200812081428_0020
08/12/08 16:27:03 INFO mapred.JobClient:  map 0% reduce 0%
08/12/08 16:27:09 INFO mapred.JobClient:  map 1% reduce 0%
08/12/08 16:27:30 INFO mapred.JobClient: Task Id : attempt_200812081428_0020_m_000005_0, Status
: FAILED
java.lang.NullPointerException: v(1) : java.lang.NullPointerException
        at org.apache.hama.AbstractVector.get(AbstractVector.java:44)
        at org.apache.hama.DenseVector.subVector(DenseVector.java:151)
        at org.apache.hama.mapred.BlockingMapRed$BlockingMapper.map(BlockingMapRed.java:112)
        at org.apache.hama.mapred.BlockingMapRed$BlockingMapper.map(BlockingMapRed.java:98)
        at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:47)
        at org.apache.hadoop.mapred.MapTask.run(MapTask.java:227)
        at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:2207)


> In random_mapred(), IntWritable(m) should be IntWritable(m-1) since start from 0.
> ---------------------------------------------------------------------------------
>
>                 Key: HAMA-126
>                 URL: https://issues.apache.org/jira/browse/HAMA-126
>             Project: Hama
>          Issue Type: Bug
>          Components: implementation
>    Affects Versions: 0.1.0
>            Reporter: Edward J. Yoon
>            Assignee: Edward J. Yoon
>             Fix For: 0.1.0
>
>         Attachments: HAMA-126.patch
>
>


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