Hi, I was trying to run Hadoop wordcount version 2 example under Cygwin. I tried without pattern.txt file -- It works fine. I tried with pattern.txt file to skip some patterns, I get NULL POINTER exception as follows::
09/01/20 12:56:16 INFO jvm.JvmMetrics: Initializing JVM Metrics with processName=JobTracker, sessionId= 09/01/20 12:56:17 WARN mapred.JobClient: No job jar file set. User classes may not be found. See JobConf(Class) or JobConf#setJar(String). 09/01/20 12:56:17 INFO mapred.FileInputFormat: Total input paths to process : 4 09/01/20 12:56:17 INFO mapred.JobClient: Running job: job_local_0001 09/01/20 12:56:17 INFO mapred.FileInputFormat: Total input paths to process : 4 09/01/20 12:56:17 INFO mapred.MapTask: numReduceTasks: 1 09/01/20 12:56:17 INFO mapred.MapTask: io.sort.mb = 100 09/01/20 12:56:17 INFO mapred.MapTask: data buffer = 79691776/99614720 09/01/20 12:56:17 INFO mapred.MapTask: record buffer = 262144/327680 09/01/20 12:56:17 WARN mapred.LocalJobRunner: job_local_0001 java.lang.NullPointerException at org.myorg.WordCount$Map.configure(WordCount.java:39) at org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:58) at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:83) at org.apache.hadoop.mapred.MapRunner.configure(MapRunner.java:34) at org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:58) at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:83) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:328) at org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:138) java.io.IOException: Job failed! at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:1217) at org.myorg.WordCount.run(WordCount.java:114) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65) at org.myorg.WordCount.main(WordCount.java:119) 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:165) at org.apache.hadoop.mapred.JobShell.run(JobShell.java:54) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79) at org.apache.hadoop.mapred.JobShell.main(JobShell.java:68) Please tell me what should I do. Thanks, shyam.s.sar...@gmail.com
