Interface Progressable

All Known Subinterfaces:
All Known Implementing Classes:
MapContext, Mapper.Context, ReduceContext, Reducer.Context, Task.TaskReporter, TaskAttemptContext, TaskAttemptContext, TaskInputOutputContext

public interface Progressable

A facility for reporting progress.

Clients and/or applications can use the provided Progressable to explicitly report progress to the Hadoop framework. This is especially important for operations which take an insignificant amount of time since, in-lieu of the reported progress, the framework has to assume that an error has occured and time-out the operation.

Method Summary
 void progress()
          Report progress to the Hadoop framework.

Method Detail


void progress()
Report progress to the Hadoop framework.

Copyright © 2009 The Apache Software Foundation