org.apache.hadoop.mapreduce.lib.output

Interface PartialOutputCommitter

All Known Implementing Classes:

PartialFileOutputCommitter

@InterfaceAudience.Public
@InterfaceStability.Evolving
public interface PartialOutputCommitter

Interface for an OutputCommitter implementing partial commit of task output, as during preemption.

Method Summary

Methods

Modifier and Type	Method and Description
void	cleanUpPartialOutputForTask(TaskAttemptContext context) Remove all previously committed outputs from prior executions of this task.

Method Detail

cleanUpPartialOutputForTask

void cleanUpPartialOutputForTask(TaskAttemptContext context)
                                 throws IOException

Remove all previously committed outputs from prior executions of this task.

Parameters:

context - Context for cleaning up previously promoted output.

Throws:

IOException - If cleanup fails, then the state of the task my not be well defined.