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https://issues.apache.org/jira/browse/NUTCH-1477?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13473756#comment-13473756
]
Mike Baranczak commented on NUTCH-1477:
---------------------------------------
I tried upgrading the Avro library to the latest (1.7.2), but I just get
another error:
org.apache.gora.util.GoraException: org.apache.avro.AvroRuntimeException: Not a
Specific class: class org.apache.nutch.storage.WebPage
at
org.apache.gora.store.DataStoreFactory.createDataStore(DataStoreFactory.java:167)
at
org.apache.gora.store.DataStoreFactory.createDataStore(DataStoreFactory.java:135)
at
org.apache.nutch.storage.StorageUtils.createWebStore(StorageUtils.java:75)
at org.apache.nutch.crawl.InjectorJob.run(InjectorJob.java:214)
at org.apache.nutch.crawl.InjectorJob.inject(InjectorJob.java:228)
at org.apache.nutch.crawl.InjectorJob.run(InjectorJob.java:248)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
at org.apache.nutch.crawl.InjectorJob.main(InjectorJob.java:258)
Caused by: org.apache.avro.AvroRuntimeException: Not a Specific class: class
org.apache.nutch.storage.WebPage
at
org.apache.avro.specific.SpecificData.createSchema(SpecificData.java:213)
at
org.apache.avro.specific.SpecificData.getSchema(SpecificData.java:154)
at
org.apache.avro.specific.SpecificDatumReader.setSchema(SpecificDatumReader.java:62)
at
org.apache.gora.avro.PersistentDatumReader.setSchema(PersistentDatumReader.java:69)
at
org.apache.gora.avro.PersistentDatumReader.<init>(PersistentDatumReader.java:63)
at
org.apache.gora.store.impl.DataStoreBase.initialize(DataStoreBase.java:87)
at
org.apache.gora.store.impl.FileBackedDataStoreBase.initialize(FileBackedDataStoreBase.java:63)
at org.apache.gora.avro.store.AvroStore.initialize(AvroStore.java:80)
at
org.apache.gora.store.DataStoreFactory.initializeDataStore(DataStoreFactory.java:102)
at
org.apache.gora.store.DataStoreFactory.createDataStore(DataStoreFactory.java:161)
> 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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