Examples of org.apache.hadoop.mapreduce.OutputFormat.checkOutputSpecs()

Class org.apache.hadoop.mapreduce.OutputFormat

Examples of org.apache.hadoop.mapreduce.OutputFormat.checkOutputSpecs()

org.apache.hadoop.mapreduce.OutputFormat.checkOutputSpecs()
Check for validity of the output-specification for the job.
This is to validate the output specification for the job when it is a job is submitted. Typically checks that it does not already exist, throwing an exception when it already exists, so that output is not overwritten.
@param context information about the job @throws IOException when output should not be attempted

      // OutputFormat
      JobContext jobContext = new JobContext(taskContext.getConfiguration(),
          taskContext.getJobID());
      context.jobContext = jobContext;
      // The contract of the OutputFormat is to check the output specs
      outputFormat.checkOutputSpecs(jobContext);
      // We get the output committer so we can call it later
      context.outputCommitter = outputFormat.getOutputCommitter(taskContext);
      // Save the RecordWriter to cache it
      context.recordWriter = outputFormat.getRecordWriter(taskContext);

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        throw new IOException(e);
      }


      context.jobContext = jobContext;
      // The contract of the OutputFormat is to check the output specs
      outputFormat.checkOutputSpecs(jobContext);
      // We get the output committer so we can call it later
      context.outputCommitter = outputFormat.getOutputCommitter(taskContext);
      // Save the RecordWriter to cache it
      context.recordWriter = outputFormat.getRecordWriter(taskContext);

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        throw new IOException(e);
      }


      context.jobContext = jobContext;
      // The contract of the OutputFormat is to check the output specs
      outputFormat.checkOutputSpecs(jobContext);
      // We get the output committer so we can call it later
      context.outputCommitter = outputFormat.getOutputCommitter(taskContext);
      // Save the RecordWriter to cache it
      context.recordWriter = outputFormat.getRecordWriter(taskContext);

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      // OutputFormat
      JobContext jobContext = new JobContext(taskContext.getConfiguration(),
          taskContext.getJobID());
      context.jobContext = jobContext;
      // The contract of the OutputFormat is to check the output specs
      outputFormat.checkOutputSpecs(jobContext);
      // We get the output committer so we can call it later
      context.outputCommitter = outputFormat.getOutputCommitter(taskContext);
      // Save the RecordWriter to cache it
      context.recordWriter = outputFormat.getRecordWriter(taskContext);

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      // OutputFormat
      JobContext jobContext = new JobContext(taskContext.getConfiguration(),
          taskContext.getJobID());
      context.jobContext = jobContext;
      // The contract of the OutputFormat is to check the output specs
      outputFormat.checkOutputSpecs(jobContext);
      // We get the output committer so we can call it later
      context.outputCommitter = outputFormat.getOutputCommitter(taskContext);
      // Save the RecordWriter to cache it
      context.recordWriter = outputFormat.getRecordWriter(taskContext);

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      // OutputFormat
      JobContext jobContext = new JobContext(taskContext.getConfiguration(),
          taskContext.getJobID());
      context.jobContext = jobContext;
      // The contract of the OutputFormat is to check the output specs
      outputFormat.checkOutputSpecs(jobContext);
      // We get the output committer so we can call it later
      context.outputCommitter = outputFormat.getOutputCommitter(taskContext);
      // Save the RecordWriter to cache it
      context.recordWriter = outputFormat.getRecordWriter(taskContext);

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