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  1. Hadoop Common
  2. HADOOP-902

NPE in DFSOutputStream.closeBackupStream()

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.11.0
    • Component/s: None
    • Labels:
      None

      Description

      After HADOOP-757 is checked in, Devraj noticed following NPE:

      java.lang.NullPointerException
      at org.apache.hadoop.dfs.DFSClient$DFSOutputStream.closeBackupStream(DFSClient.java:972)
      at org.apache.hadoop.dfs.DFSClient$DFSOutputStream.endBlock(DFSClient.java:1219)
      at org.apache.hadoop.dfs.DFSClient$DFSOutputStream.flush(DFSClient.java:1181)
      at org.apache.hadoop.dfs.DFSClient$DFSOutputStream.write(DFSClient.java:1163)
      at org.apache.hadoop.fs.FSDataOutputStream$Summer.write(FSDataOutputStream.java:85)
      at org.apache.hadoop.fs.FSDataOutputStream$PositionCache.write(FSDataOutputStream.java:114)
      at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:65)
      at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:123)
      at java.io.DataOutputStream.flush(DataOutputStream.java:106)
      at java.io.FilterOutputStream.close(FilterOutputStream.java:140)
      at org.apache.hadoop.io.SequenceFile$Writer.close(SequenceFile.java:558)
      at org.apache.hadoop.mapred.SequenceFileOutputFormat$1.close(SequenceFileOutputFormat.java:72)
      at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:331)
      at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:1367)

      I will submit a patch after confirming its ok for backupStream to be null at this stage.

        Attachments

        1. HADOOP-902.patch
          2 kB
          Raghu Angadi

          Activity

            People

            • Assignee:
              rangadi Raghu Angadi
              Reporter:
              rangadi Raghu Angadi
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              Dates

              • Created:
                Updated:
                Resolved: