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  1. Hadoop HDFS
  2. HDFS-12953

XORRawDecoder.doDecode throws NullPointerException

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    Details

    • Type: Bug
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: 3.0.0
    • Fix Version/s: None
    • Component/s: erasure-coding
    • Labels:
      None
    • Target Version/s:

      Description

      Thanks Daniel Pol report on HDFS-12860.

      17/11/30 04:19:55 INFO mapreduce.Job: map 0% reduce 0%
      17/11/30 04:20:01 INFO mapreduce.Job: Task Id : attempt_1512036058655_0003_m_000002_0, Status : FAILED
      Error: java.lang.NullPointerException
      at org.apache.hadoop.io.erasurecode.rawcoder.XORRawDecoder.doDecode(XORRawDecoder.java:83)
      at org.apache.hadoop.io.erasurecode.rawcoder.RawErasureDecoder.decode(RawErasureDecoder.java:106)
      at org.apache.hadoop.io.erasurecode.rawcoder.RawErasureDecoder.decode(RawErasureDecoder.java:170)
      at org.apache.hadoop.hdfs.StripeReader.decodeAndFillBuffer(StripeReader.java:423)
      at org.apache.hadoop.hdfs.StatefulStripeReader.decode(StatefulStripeReader.java:94)
      at org.apache.hadoop.hdfs.StripeReader.readStripe(StripeReader.java:382)
      at org.apache.hadoop.hdfs.DFSStripedInputStream.readOneStripe(DFSStripedInputStream.java:318)
      at org.apache.hadoop.hdfs.DFSStripedInputStream.readWithStrategy(DFSStripedInputStream.java:391)
      at org.apache.hadoop.hdfs.DFSInputStream.read(DFSInputStream.java:813)
      at java.io.DataInputStream.read(DataInputStream.java:149)
      at org.apache.hadoop.examples.terasort.TeraInputFormat$TeraRecordReader.nextKeyValue(TeraInputFormat.java:257)
      at org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapTask.java:563)
      at org.apache.hadoop.mapreduce.task.MapContextImpl.nextKeyValue(MapContextImpl.java:80)
      at org.apache.hadoop.mapreduce.lib.map.WrappedMapper$Context.nextKeyValue(WrappedMapper.java:91)
      at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:145)
      at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:794)
      at org.apache.hadoop.mapred.MapTask.run(MapTask.java:342)
      at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:174)
      at java.security.AccessController.doPrivileged(Native Method)
      at javax.security.auth.Subject.doAs(Subject.java:422)
      at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1962)
      at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:168)
      

        Attachments

        1. HDFS-12953.test.patch
          0.9 kB
          Xiao Chen

          Activity

            People

            • Assignee:
              aihuaxu Aihua Xu
              Reporter:
              eddyxu Lei (Eddy) Xu
            • Votes:
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              Watchers:
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              Dates

              • Created:
                Updated: