[
https://issues.apache.org/jira/browse/HAMA-53?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Edward J. Yoon updated HAMA-53:
-------------------------------
Resolution: Fixed
Status: Resolved (was: Patch Available)
I just committed this.
> NullPointerException on mapreduce
> ---------------------------------
>
> Key: HAMA-53
> URL: https://issues.apache.org/jira/browse/HAMA-53
> Project: Hama
> Issue Type: Bug
> Components: mapred
> Reporter: Edward J. Yoon
> Assignee: Edward J. Yoon
> Fix For: 0.1.0
>
> Attachments: HAMA-53.patch
>
>
> When I run a addition example on the Hadoop cluster, I recieved an
> NullPointerException as below :
> 08/09/08 16:35:34 INFO mapred.JobClient: Running job: job_200809081623_0004
> 08/09/08 16:35:35 INFO mapred.JobClient: map 0% reduce 0%
> 08/09/08 16:35:39 INFO mapred.JobClient: Task Id :
> task_200809081623_0004_m_000000_0, Status : FAILED
> java.lang.NullPointerException
> at org.apache.hama.algebra.AdditionMap.map(AdditionMap.java:38)
> at org.apache.hama.algebra.AdditionMap.map(AdditionMap.java:31)
> at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:47)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:219)
> at
> org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:2124)
> 08/09/08 16:35:44 INFO mapred.JobClient: Task Id :
> task_200809081623_0004_m_000000_1, Status : FAILED
> java.lang.NullPointerException
> at org.apache.hama.algebra.AdditionMap.map(AdditionMap.java:38)
> at org.apache.hama.algebra.AdditionMap.map(AdditionMap.java:31)
> at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:47)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:219)
> at
> org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:2124)
> 08/09/08 16:35:49 INFO mapred.JobClient: Task Id :
> task_200809081623_0004_m_000000_2, Status : FAILED
> java.lang.NullPointerException
> at org.apache.hama.algebra.AdditionMap.map(AdditionMap.java:38)
> at org.apache.hama.algebra.AdditionMap.map(AdditionMap.java:31)
> at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:47)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:219)
> at
> org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:2124)
> 08/09/08 16:35:53 INFO mapred.JobClient: map 100% reduce 100%
> java.io.IOException: Job failed!
> at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:1062)
> at org.apache.hama.DenseMatrix.add(DenseMatrix.java:146)
> at
> org.apache.hama.examples.MatrixAddition.main(MatrixAddition.java:63)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at
> org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68)
> at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139)
> at org.apache.hama.examples.ExampleDriver.main(ExampleDriver.java:29)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.apache.hadoop.util.RunJar.main(RunJar.java:155)
> at org.apache.hadoop.mapred.JobShell.run(JobShell.java:194)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
> at org.apache.hadoop.mapred.JobShell.main(JobShell.java:220)
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
