Hadoop Common
  1. Hadoop Common
  2. HADOOP-3093

ma/reduce throws the following exception if "io.serializations" is not set:

    Details

    • Type: Bug Bug
    • Status: Closed
    • Priority: Major Major
    • Resolution: Fixed
    • Affects Version/s: 0.17.0
    • Fix Version/s: 0.17.0
    • Component/s: None
    • Labels:
      None
    • Release Note:
      Hide
      The following public APIs are added in org.apache.hadoop.conf.Configuration
       String[] Configuration.getStrings(String name, String... defaultValue) and
       void Configuration.setStrings(String name, String... values)
      Show
      The following public APIs are added in org.apache.hadoop.conf.Configuration  String[] Configuration.getStrings(String name, String... defaultValue) and  void Configuration.setStrings(String name, String... values)

      Description

      map/reduce throws the following exception if "io.serializations" is not set:

      java.lang.NullPointerException
      at org.apache.hadoop.io.serializer.SerializationFactory.<init>(SerializationFactory.java:52)
      at org.apache.hadoop.mapred.MapTask$MapOutputBuffer.<init>(MapTask.java:325)
      at org.apache.hadoop.mapred.MapTask.run(MapTask.java:177)
      at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:2073)

      Map/reduce should use org.apache.hadoop.io.serializer.WritableSerialization as the default class as it had in the past.

      1. patch-3093.txt
        2 kB
        Amareshwari Sriramadasu
      2. patch-3093.txt
        2 kB
        Amareshwari Sriramadasu

        Activity

          People

          • Assignee:
            Amareshwari Sriramadasu
            Reporter:
            Runping Qi
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            Dates

            • Created:
              Updated:
              Resolved:

              Development