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https://issues.apache.org/jira/browse/NUTCH-1477?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13479919#comment-13479919
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Julien Nioche commented on NUTCH-1477:
--------------------------------------
Thanks Mike. I confirm the issue.
Did you recompile the Webpage class from the AVRO defs when using the latest
version of AVRO? Could be an incompatibility between the versions.
Going back to the original problem I don't think the problem comes from AVRO as
we would have it with the other backends as well. As for the MemStore I don't
think it is used for anything else than tests.
> NPE when injecting with DataFileAvroStore
> -----------------------------------------
>
> Key: NUTCH-1477
> URL: https://issues.apache.org/jira/browse/NUTCH-1477
> Project: Nutch
> Issue Type: Bug
> Components: storage
> Affects Versions: 2.1
> Environment: Java 1.6.0_35
> Reporter: Mike Baranczak
>
> Fresh installation of Nutch 2.1, configured to use DataFileAvroStore.
> Injection job throws NullPointerException, see below. No error when I switch
> to MemStore.
> java.lang.NullPointerException
> at org.apache.avro.io.BinaryEncoder.writeString(BinaryEncoder.java:133)
> at
> org.apache.avro.generic.GenericDatumWriter.writeString(GenericDatumWriter.java:176)
> at
> org.apache.avro.generic.GenericDatumWriter.writeString(GenericDatumWriter.java:171)
> at
> org.apache.avro.generic.GenericDatumWriter.write(GenericDatumWriter.java:72)
> at
> org.apache.avro.generic.GenericDatumWriter.writeRecord(GenericDatumWriter.java:89)
> at
> org.apache.avro.generic.GenericDatumWriter.write(GenericDatumWriter.java:62)
> at
> org.apache.avro.generic.GenericDatumWriter.write(GenericDatumWriter.java:55)
> at org.apache.avro.file.DataFileWriter.append(DataFileWriter.java:245)
> at
> org.apache.gora.avro.store.DataFileAvroStore.put(DataFileAvroStore.java:54)
> at
> org.apache.gora.mapreduce.GoraRecordWriter.write(GoraRecordWriter.java:60)
> at
> org.apache.hadoop.mapred.MapTask$NewDirectOutputCollector.write(MapTask.java:639)
> at
> org.apache.hadoop.mapreduce.TaskInputOutputContext.write(TaskInputOutputContext.java:80)
> at
> org.apache.nutch.crawl.InjectorJob$UrlMapper.map(InjectorJob.java:185)
> at org.apache.nutch.crawl.InjectorJob$UrlMapper.map(InjectorJob.java:85)
> at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:144)
> at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:370)
> at
> org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:212)
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