Hi,
I tried to run Randomn forest for KDD data in the Hadoop cluster(CDH version 3)
and ended up with the following error during build forest:-
Exception in thread "main" java.lang.IllegalStateException: java.io.EOFException
at
org.apache.mahout.common.iterator.sequencefile.SequenceFileIterable.iterator(SequenceFileIterable.java:63)
at
org.apache.mahout.df.mapreduce.partial.PartialBuilder.processOutput(PartialBuilder.java:173)
at
org.apache.mahout.df.mapreduce.partial.PartialBuilder.parseOutput(PartialBuilder.java:121)
at org.apache.mahout.df.mapreduce.Builder.build(Builder.java:324)
at
org.apache.mahout.df.mapreduce.BuildForest.buildForest(BuildForest.java:195)
at org.apache.mahout.df.mapreduce.BuildForest.run(BuildForest.java:159)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
at org.apache.mahout.df.mapreduce.BuildForest.main(BuildForest.java:239)
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:186)
Caused by: java.io.EOFException
at java.io.DataInputStream.readFully(DataInputStream.java:180)
at java.io.DataInputStream.readFully(DataInputStream.java:152)
at org.apache.hadoop.io.SequenceFile$Reader.init(SequenceFile.java:1457)
at
org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1435)
at
org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1424)
at
org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1419)
at
org.apache.mahout.common.iterator.sequencefile.SequenceFileIterator.<init>(SequenceFileIterator.java:58)
at
org.apache.mahout.common.iterator.sequencefile.SequenceFileIterable.iterator(SequenceFileIterable.java:61)
... 12 more
Any help in resolving the above issue is greatly appreciated.
Thanks and Regards,
Ranjit.C
