# Hierarchy For Package org.apache.hadoop.mapred

Package Hierarchies:

- All Packages

## Class Hierarchy

- java.lang.Object
  - org.apache.hadoop.service.AbstractService (implements org.apache.hadoop.service.Service)
    - org.apache.hadoop.service.CompositeService
      - org.apache.hadoop.mapred.TaskAttemptListenerImpl (implements org.apache.hadoop.mapreduce.v2.app.TaskAttemptListener, org.apache.hadoop.mapred.TaskUmbilicalProtocol)
    - org.apache.hadoop.mapred.LocalContainerLauncher (implements org.apache.hadoop.mapreduce.v2.app.launcher.ContainerLauncher)
  - org.apache.hadoop.mapred.MapOutputFile (implements org.apache.hadoop.conf.Configurable)
    - org.apache.hadoop.mapred.YarnOutputFiles
  - org.apache.hadoop.mapred.MapReduceChildJVM
  - org.apache.hadoop.mapred.ProgressSplitsBlock
    - org.apache.hadoop.mapred.WrappedProgressSplitsBlock
  - org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl (implements org.apache.hadoop.yarn.event.EventHandler<T>, org.apache.hadoop.mapreduce.v2.app.job.TaskAttempt)
    - org.apache.hadoop.mapred.MapTaskAttemptImpl
    - org.apache.hadoop.mapred.ReduceTaskAttemptImpl
  - org.apache.hadoop.mapred.WrappedJvmID
  - org.apache.hadoop.mapred.WrappedPeriodicStatsAccumulator

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