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Invalid value for mapreduce.inputformat.class Parameter Causes java.lang.ClassNotFoundException (Doc ID 1446756.1)

Last updated on FEBRUARY 03, 2022

Applies to:

Oracle Loader for Hadoop - Version 1.1.0 and later
Linux x86-64Symptoms

Running a job with Oracle Loader for Hadoop and receiving the following exception:

Exception in thread "main" java.lang.RuntimeException: java.lang.ClassNotFoundException: oracle.hadoop.loader.lib.input.DelimitedTextInputForm
at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:996)
at org.apache.hadoop.mapreduce.JobContext.getInputFormatClass(JobContext.java:200)
at org.apache.hadoop.mapred.JobClient.writeNewSplits(JobClient.java:941)
at org.apache.hadoop.mapred.JobClient.writeSplits(JobClient.java:961)
at org.apache.hadoop.mapred.JobClient.access$500(JobClient.java:170)
at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:880)
at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:833)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1127)
at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:833)
at org.apache.hadoop.mapreduce.Job.submit(Job.java:476)
at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:506)
at oracle.hadoop.loader.OraLoader.run(OraLoader.java:559)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
at oracle.hadoop.loader.OraLoader.main(OraLoader.java:734)
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:186)
Caused by: java.lang.ClassNotFoundException: oracle.hadoop.loader.lib.input.DelimitedTextInputForm
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:247)
at org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:943)
at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:994)
... 20 more

Cause

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In this Document
Symptoms
Cause
Solution

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