/** {@inheritDoc} */
@Override
public void configure(Job job) throws IOException {
// sets Hadoop output format, Kiji output table and # of reducers:
super.configure(job);
final Configuration conf = job.getConfiguration();
// Kiji table context:
conf.setClass(
KijiConfKeys.KIJI_TABLE_CONTEXT_CLASS, HFileWriterContext.class, KijiTableContext.class);
// Set the output path.
FileOutputFormat.setOutputPath(job, mPath);
// Configure the total order partitioner so generated HFile shards are contiguous and sorted.
configurePartitioner(job, makeTableKeySplit(getOutputTableURI(), getNumReduceTasks(), conf));
// Note: the HFile job output requires the reducer of the MapReduce job to be IdentityReducer.
// This is enforced externally.
}
/** {@inheritDoc} */
@Override
public void initialize(Map<String, String> params) throws IOException {
super.initialize(params);
mPath = new Path(params.get(JobIOConfKeys.FILE_PATH_KEY));
}
