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https://issues.apache.org/jira/browse/NUTCH-1843?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14164940#comment-14164940
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Kiril Menshikov commented on NUTCH-1843:
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I am getting this errors during fetch, parse and updatedb phases:
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:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
The cause is the following line (example from FetcherJob):
filter.getOperands().add(new Utf8(batchId));
During serialization MongoDB doesn't know about Utf8 type.
> Upgrade to Gora 0.5
> -------------------
>
> Key: NUTCH-1843
> URL: https://issues.apache.org/jira/browse/NUTCH-1843
> Project: Nutch
> Issue Type: Improvement
> Components: build, storage
> Reporter: Lewis John McGibbney
> Assignee: Talat UYARER
> Fix For: 2.3
>
> Attachments: NUTCH-1843.patch, NUTCH-1843v2.patch
>
>
> We just released Gora 0.5
> http://www.mail-archive.com/dev%40gora.apache.org/msg05236.html
> We should upgrade before releasing Nutch 2.3
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