Sqoop job failed with ClassNotFoundException

write an essay for college acceptance In the last few weeks, I was dealing with an issue that when importing data from DB2 into HDFS, it kept failing with NoClassDefFoundError. Below was the command details:

http://occasionzgifts.com/?p=usability-phd-thesis sqoop import --connect jdbc:db2://<db2-host-url>:3700/db1 --username user1 --password changeme --table ZZZ001$.part_table --target-dir /path/in/hdfs --fields-terminated-by \001 -m 1 --validate

research paper writer services And the error message was:

papers writing service java.lang.RuntimeException: java.lang.reflect.InvocationTargetException at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:131) at org.apache.sqoop.mapreduce.db.DBRecordReader.createValue(DBRecordReader.java:197) at org.apache.sqoop.mapreduce.db.DBRecordReader.nextKeyValue(DBRecordReader.java:230) at org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapTask.java:556) at org.apache.hadoop.mapreduce.task.MapContextImpl.nextKeyValue(MapContextImpl.java:80) at org.apache.hadoop.mapreduce.lib.map.WrappedMapper$Context.nextKeyValue(WrappedMapper.java:91) at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:144) at org.apache.sqoop.mapreduce.AutoProgressMapper.run(AutoProgressMapper.java:64) at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:787) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341) at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:164) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:415) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1693) at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158) Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:526) at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:129) ... 14 more Caused by: java.lang.NoClassDefFoundError: ZZZ001$_part_table$1 at ZZZ001$_part_table.init0(ZZZ001$_part_table.java:43) at ZZZ001$_part_table.<init>(ZZZ001$_part_table.java:159) ... 19 more Caused by: java.lang.ClassNotFoundException: ZZZ001$_part_table$1 at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) ... 21 more

Buy Adobe Creative Suite 5 Master Collection oem By looking at the error message, it was highly suspicious that the class name ZZZ001$_part_table$1 looked wrong. This was caused by the table name itself in DB2 contained “$”: source ZZZ001$.part_table. So when sqoop generated the class, the name became custom admission essay a university ZZZ001$_part_table$1, which is invalid Java class name.

click To bypass this issue, the workaround is to force Sqoop to generate a customer class name by passing “–class-name” parameter. So the new command becomes:

http://www.captainconso.com/math-makes-sense-5-homework-book/ sqoop import --connect jdbc:db2://<db2-host-url>:3700/db1 --username user1 --password changeme --table ZZZ001$.part_table --target-dir /path/in/hdfs --fields-terminated-by \001 -m 1 --class-name ZZZ001_part_table --validate

http://www.rieticultura.net/?pay-for-homework-help pay for homework help Hope above helps.

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