Thanks, Jerry! On Jan 20, 2010, at 11:59 AM, Jerry Ye wrote:
> Ticket created as https://issues.apache.org/jira/browse/MAHOUT-265. I > noticed that I don't get this error with revision 897299, however it shows > that it wrote 0 vectors when converting vectors from both the Solr index and > the arff converter. > > - jerry > > > On 1/20/10 9:22 AM, "Grant Ingersoll" <[email protected]> wrote: > > Looks like a bug, can you open a JIRA ticket? Note, the ARFF support may > not be complete as of yet, although I wonder if this is an issue with the > upgrade to a newer version of Hadoop. I'll try to take a look in the next > few days. > > -Grant > > On Jan 19, 2010, at 4:16 PM, Jerry Ye wrote: > >> Hi, >> I've been trying to convert a simple arff file and I'm getting the following >> error: >> >> -bash-3.1$ java -cp >> mahout-core-0.3-SNAPSHOT.jar:mahout-utils-0.3-SNAPSHOT.jar:$(echo >> dependency/*.jar . | sed 's/ /:/g') >> org.apache.mahout.utils.vectors.arff.Driver -d vehicle.arff -o iris -t >> iris/dict.txt >> Jan 19, 2010 8:58:36 PM org.slf4j.impl.JCLLoggerAdapter info >> INFO: Output Dir: iris >> Jan 19, 2010 8:58:36 PM org.slf4j.impl.JCLLoggerAdapter info >> INFO: Converting File: vehicle.arff >> outfile: iris/vehicle.arff.mvc >> Exception in thread "main" java.lang.NullPointerException >> at >> org.apache.hadoop.io.serializer.SerializationFactory.getSerializer(SerializationFactory.java:73) >> at org.apache.hadoop.io.SequenceFile$Writer.init(SequenceFile.java:910) >> at >> org.apache.hadoop.io.SequenceFile$RecordCompressWriter.<init>(SequenceFile.java:1074) >> at org.apache.hadoop.io.SequenceFile.createWriter(SequenceFile.java:397) >> at org.apache.hadoop.io.SequenceFile.createWriter(SequenceFile.java:284) >> at org.apache.hadoop.io.SequenceFile.createWriter(SequenceFile.java:265) >> at >> org.apache.mahout.utils.vectors.arff.Driver.getSeqFileWriter(Driver.java:180) >> at org.apache.mahout.utils.vectors.arff.Driver.writeFile(Driver.java:167) >> at org.apache.mahout.utils.vectors.arff.Driver.main(Driver.java:132) >> >> My data is: >> >> @relation iris >> >> @attribute f1 numeric >> @attribute f2 numeric >> @attribute f3 numeric >> @attribute f4 numeric >> >> @data >> 5.1,3.5,1.4,0.2 >> 4.9,3.0,1.4,0.2 >> 4.7,3.2,1.3,0.2 >> 4.6,3.1,1.5,0.2 >> 5.0,3.6,1.4,0.2 >> 5.4,3.9,1.7,0.4 >> 4.6,3.4,1.4,0.3 >> 5.0,3.4,1.5,0.2 >> 4.4,2.9,1.4,0.2 >> 4.9,3.1,1.5,0.1 >> >> >> Any guidance? Thanks. >> >> - jerry > >
