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https://issues.apache.org/jira/browse/HADOOP-1058?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Owen O'Malley resolved HADOOP-1058.
-----------------------------------
Resolution: Duplicate
This was fixed by removing the port rolling in mini-mr cluster in HADOOP-1085.
> ClassCastException in TextInputFormat.getRecordReader
> -----------------------------------------------------
>
> Key: HADOOP-1058
> URL: https://issues.apache.org/jira/browse/HADOOP-1058
> Project: Hadoop
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.11.2
> Reporter: Nigel Daley
>
> Running TestMiniMRLocalFS on Linux, I saw this exception during the 3rd job
> that it runs:
> [junit] 2007-02-28 21:10:14,739 INFO mapred.TaskRunner
> (MapTaskRunner.java:close(46)) - task_0003_m_000001_0 done; removing files.
> [junit] 2007-02-28 21:10:14,746 INFO mapred.TaskInProgress
> (TaskInProgress.java:updateStatus(328)) - Error from task_0003_m_000001_0:
> java.lang.ClassCastException:
> org.apache.hadoop.mapred.TestMiniMRLocalFS$MyInputFormat$MySplit
> [junit] at
> org.apache.hadoop.mapred.TextInputFormat.getRecordReader(TextInputFormat.java:46)
> [junit] at org.apache.hadoop.mapred.MapTask.run(MapTask.java:145)
> [junit] at
> org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:1444)
> [junit] 2007-02-28 21:10:14,747 INFO mapred.TaskInProgress
> (TaskInProgress.java:failedSubTask(380)) - Task 'task_0003_m_000001_0' has
> been lost.
> [junit] 2007-02-28 21:10:14,748 INFO mapred.JobTracker
> (JobTracker.java:removeMarkedTasks(802)) - Removed completed task
> 'task_0003_m_000001_0' from 'tracker_foo.com:60042'
> [junit] 2007-02-28 21:10:15,145 INFO mapred.TaskTracker
> (TaskTracker.java:reportProgress(1056)) - task_0003_r_000000_0 0.11111112%
> reduce > copy (1 of 3 at 0.00 MB/s) >
> [junit] 2007-02-28 21:10:15,373 INFO mapred.JobClient
> (JobClient.java:runJob(584)) - Task Id : task_0003_m_000001_0, Status : FAILED
> [junit] task_0003_m_000001_0: 2007-02-28 21:10:11,670 WARN
> mapred.TaskTracker (TaskTracker.java:main(1449)) - Error running child
> [junit] task_0003_m_000001_0: java.lang.ClassCastException:
> org.apache.hadoop.mapred.TestMiniMRLocalFS$MyInputFormat$MySplit
> [junit] task_0003_m_000001_0: at
> org.apache.hadoop.mapred.TextInputFormat.getRecordReader(TextInputFormat.java:46)
> [junit] task_0003_m_000001_0: at
> org.apache.hadoop.mapred.MapTask.run(MapTask.java:145)
> [junit] task_0003_m_000001_0: at
> org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:1444)
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