[HBASE-9112] Custom TableInputFormat in initTableMapperJob throws ClassNoFoundException on TableMapper

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.94.6.1
• Component/s: hadoop2, mapreduce

Environment

CDH-4.3.0-1.cdh4.3.0.p0.22

• Assignee: Nick Dimiduk
• Reporter: Debanjan Bhattacharyya
• Created: 01/Aug/13 17:37
• Updated: 16/Jun/22 17:50
• Resolved: 15/Nov/13 17:54

Description

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)

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

Thanks
Regards

Issue Links

• relates to: HBASE-9165 Improvements to addDependencyJars
• relates to: HBASE-8146 IntegrationTestBigLinkedList does not work on distributed setup