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From "Jason (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-3299) org.apache.hadoop.mapred.join.CompositeInputFormat does not initialize TextInput format files with the configuration resulting in an NullPointerException
Date Tue, 22 Apr 2008 23:47:21 GMT
org.apache.hadoop.mapred.join.CompositeInputFormat does not initialize  TextInput format files
with the configuration resulting in an NullPointerException
----------------------------------------------------------------------------------------------------------------------------------------------------------

                 Key: HADOOP-3299
                 URL: https://issues.apache.org/jira/browse/HADOOP-3299
             Project: Hadoop Core
          Issue Type: Bug
          Components: io, mapred
    Affects Versions: 0.16.3
            Reporter: Jason
         Attachments: text.diff

The input formats are not initialized with the Configuration object before the isSplitable
method is called.

bin/hadoop jar hadoop-0.16.3-examples.jar  join -r 1 -inFormat org.apache.hadoop.mapred.KeyValueTextInputFormat
-outFormat org.apache.hadoop.mapred.TextOutputFormat  -joinOp outer datajoin/input datajoin/output
-outKey org.apache.hadoop.io.Text -outValue org.apache.hadoop.mapred.join.TupleWritable
08/04/22 15:05:33 INFO jvm.JvmMetrics: Initializing JVM Metrics with processName=JobTracker,
sessionId=
Job started: Tue Apr 22 15:05:33 GMT-08:00 2008
08/04/22 15:05:33 INFO jvm.JvmMetrics: Cannot initialize JVM Metrics with processName=JobTracker,
sessionId= - already initialized
08/04/22 15:05:33 INFO mapred.FileInputFormat: Total input paths to process : 2
java.lang.NullPointerException
	at org.apache.hadoop.mapred.KeyValueTextInputFormat.isSplitable(KeyValueTextInputFormat.java:44)
	at org.apache.hadoop.mapred.FileInputFormat.getSplits(FileInputFormat.java:185)
	at org.apache.hadoop.mapred.join.Parser$WNode.getSplits(Parser.java:304)
	at org.apache.hadoop.mapred.join.Parser$CNode.getSplits(Parser.java:374)
	at org.apache.hadoop.mapred.join.CompositeInputFormat.getSplits(CompositeInputFormat.java:129)
	at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:542)
	at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:803)
	at org.apache.hadoop.examples.Join.run(Join.java:149)
	at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
	at org.apache.hadoop.examples.Join.main(Join.java:158)
	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.hadoop.examples.ExampleDriver.main(ExampleDriver.java:52)
	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)


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