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From "Debanjan Bhattacharyya (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-9112) Custom TableInputFormat in initTableMapperJob throws ClassNoFoundException on TableMapper
Date Thu, 01 Aug 2013 17:39:48 GMT
Debanjan Bhattacharyya created HBASE-9112:
---------------------------------------------

             Summary: Custom TableInputFormat in initTableMapperJob throws ClassNoFoundException
on TableMapper
                 Key: HBASE-9112
                 URL: https://issues.apache.org/jira/browse/HBASE-9112
             Project: HBase
          Issue Type: Bug
          Components: hadoop2
    Affects Versions: 0.2.0
         Environment: CDH-4.3.0-1.cdh4.3.0.p0.22
            Reporter: Debanjan Bhattacharyya


When using custom TableInputFormat in TableMapReduceUtil.initTableMapperJob in the following
way
TableMapReduceUtil.initTableMapperJob("mytable", 
							MyScan, 
							MyMapper.class,
							MyKey.class, 
							MyValue.class, 
							myJob,true,  MyTableInputFormat.class);

I get error: java.lang.ClassNotFoundException: org.apache.hadoop.hbase.mapreduce.TableMapper
	at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
	at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:190)

The if I do not use the last two parameters, there is no error.
What is going wrong here?

Thanks
Regards

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