[HBASE-8528] [hadoop2] TestMultiTableInputFormat always fails on hadoop with YARN-129 applied

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.95.0
• Fix Version/s: 0.98.0, 0.95.1
• Component/s: hadoop2, mapreduce, test
• Hadoop Flags: Reviewed
• Assignee: Jonathan Hsieh
• Reporter: Jonathan Hsieh
• Created: 10/May/13 22:47
• Updated: 23/Sep/13 19:08
• Resolved: 14/May/13 20:28

Description

TestMulitTableInputFormat always fails if YARN-129 is applied. Its error message isn't useful (assertion failed) – but if you look at the stderr/stdout/syslog files of the jobs in hbase-server/target/org.apache.hadoop.mapred.MiniMRCluster* (minicluster data dirs) you'll find this class not found exception:

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/hadoop/mapreduce/v2/app/MRAppMaster
Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.mapreduce.v2.app.MRAppMaster
        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)
Could not find the main class: org.apache.hadoop.mapreduce.v2.app.MRAppMaster.  Program will exit.

Issue Links

• is related to: SQOOP-927 Sqoop2: Integration: Mapreduce specific tests should be running on MiniCluster
• is related to: YARN-129 Simplify classpath construction for mini YARN tests