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https://issues.apache.org/jira/browse/NUTCH-2028?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lewis John McGibbney updated NUTCH-2028:
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Fix Version/s: 2.3.1
> java.lang.IllegalArgumentException: can't serialize class
> org.apache.avro.util.Utf8
> -----------------------------------------------------------------------------------
>
> Key: NUTCH-2028
> URL: https://issues.apache.org/jira/browse/NUTCH-2028
> Project: Nutch
> Issue Type: Bug
> Components: fetcher
> Affects Versions: 2.3
> Environment: Mac 10.10.3 Nutch 2.3
> Reporter: Roman P
> Fix For: 2.3.1
>
>
> Compiled Nutch 2.3 with MongoDB as a persistence. Getting exception when
> fetching. Searched for similar errors online, noticed that this issue was
> addressed in gora 0.6. Tried recompiling with 0.6 but then getting different
> exception, seems that it's incompatible with hadoop 1.2.0. Tried different
> versions of hadoop with no luck.
> FetcherJob: starting at 2015-05-31 09:29:04
> FetcherJob: batchId: all
> FetcherJob: threads: 10
> FetcherJob: parsing: false
> FetcherJob: resuming: false
> FetcherJob : timelimit set for : -1
> java.lang.IllegalArgumentException: can't serialize class
> org.apache.avro.util.Utf8
> at org.bson.BasicBSONEncoder._putObjectField(BasicBSONEncoder.java:284)
> at org.bson.BasicBSONEncoder.putObject(BasicBSONEncoder.java:185)
> at org.bson.BasicBSONEncoder.putObject(BasicBSONEncoder.java:131)
> at com.mongodb.DefaultDBEncoder.writeObject(DefaultDBEncoder.java:33)
> at com.mongodb.OutMessage.putObject(OutMessage.java:289)
> at com.mongodb.OutMessage.writeQuery(OutMessage.java:211)
> at com.mongodb.OutMessage.query(OutMessage.java:86)
> at com.mongodb.DBCollectionImpl.find(DBCollectionImpl.java:81)
> at com.mongodb.DBCollectionImpl.find(DBCollectionImpl.java:66)
> at com.mongodb.DBCursor._check(DBCursor.java:458)
> at com.mongodb.DBCursor._hasNext(DBCursor.java:546)
> at com.mongodb.DBCursor.hasNext(DBCursor.java:571)
> at
> org.apache.gora.mongodb.query.MongoDBResult.nextInner(MongoDBResult.java:69)
> at org.apache.gora.query.impl.ResultBase.next(ResultBase.java:114)
> at
> org.apache.gora.mapreduce.GoraRecordReader.nextKeyValue(GoraRecordReader.java:119)
> at
> org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapTask.java:531)
> at
> org.apache.hadoop.mapreduce.MapContext.nextKeyValue(MapContext.java:67)
> at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:144)
> at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:364)
> at
> org.apache.hadoop.mapred.LocalJobRunner$Job$MapTaskRunnable.run(LocalJobRunner.java:223)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
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