java.lang.Exception: java.lang.RuntimeException: java.util.NoSuchElementException

Stack Overflow | Emmanuel | 5 months ago
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    Apache Nutch: FetcherJob throws NoSuchElementException deep in Gora

    Stack Overflow | 5 months ago | Emmanuel
    java.lang.Exception: java.lang.RuntimeException: java.util.NoSuchElementException
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    Stack Overflow | 1 year ago | Binoy Dalal
    java.lang.Exception: java.lang.RuntimeException: java.util.NoSuchElementException

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    Root Cause Analysis

    1. java.util.NoSuchElementException

      No message provided

      at java.util.concurrent.ConcurrentSkipListMap.firstKey()
    2. Java RT
      ConcurrentSkipListMap.firstKey
      1. java.util.concurrent.ConcurrentSkipListMap.firstKey(ConcurrentSkipListMap.java:2036)
      1 frame
    3. Apache Gora :: Core
      GoraRecordReader.nextKeyValue
      1. org.apache.gora.memory.store.MemStore.execute(MemStore.java:128)
      2. org.apache.gora.query.impl.QueryBase.execute(QueryBase.java:73)
      3. org.apache.gora.mapreduce.GoraRecordReader.executeQuery(GoraRecordReader.java:67)
      4. org.apache.gora.mapreduce.GoraRecordReader.nextKeyValue(GoraRecordReader.java:109)
      4 frames
    4. Hadoop
      LocalJobRunner$Job$MapTaskRunnable.run
      1. org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapTask.java:556)
      2. org.apache.hadoop.mapreduce.task.MapContextImpl.nextKeyValue(MapContextImpl.java:80)
      3. org.apache.hadoop.mapreduce.lib.map.WrappedMapper$Context.nextKeyValue(WrappedMapper.java:91)
      4. org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:145)
      5. org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:787)
      6. org.apache.hadoop.mapred.MapTask.run(MapTask.java:341)
      7. org.apache.hadoop.mapred.LocalJobRunner$Job$MapTaskRunnable.run(LocalJobRunner.java:243)
      7 frames
    5. Java RT
      Thread.run
      1. java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
      2. java.util.concurrent.FutureTask.run(FutureTask.java:266)
      3. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
      4. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
      5. java.lang.Thread.run(Thread.java:745)
      5 frames