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java.lang.Objectorg.apache.hadoop.mapred.IsolationRunner
public class IsolationRunner
IsolationRunner is intended to facilitate debugging by re-running a specific task, given left-over task files for a (typically failed) past job. Currently, it is limited to re-running map tasks. Users may coerce MapReduce to keep task files around by setting keep.failed.task.files. See mapred_tutorial.xml for more documentation.
Constructor Summary | |
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IsolationRunner()
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Method Summary | |
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static void |
main(java.lang.String[] args)
Run a single task. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public IsolationRunner()
Method Detail |
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public static void main(java.lang.String[] args) throws java.lang.ClassNotFoundException, java.io.IOException, java.lang.InterruptedException
args
- the first argument is the task directory
java.lang.ClassNotFoundException
java.io.IOException
java.lang.InterruptedException
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