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  1. Apache Gora
  2. GORA-388

MongoStore: Fix handling of Utf8 in filters

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 0.5
    • Fix Version/s: 0.6
    • Component/s: gora-mongodb
    • Labels:
      None

      Description

      Gora 0.5 MongoDB driver fail to properly serialize Utf8 instance passed to its local filters implementation.

      Here is sample code

      filter.getOperands().add(new Utf8(batchId));
      

      that will trigger the following exception at runtime

      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)
      

      This pattern is extensively used by Apache Nutch :

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              • Assignee:
                Unassigned
                Reporter:
                drazzib Damien Raude-Morvan
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                Dates

                • Created:
                  Updated:
                  Resolved: