org.apache.hadoop.mapred.join.CompositeInputFormat does not initialize
TextInput format files with the configuration resulting in an
NullPointerException
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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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