Examples with MapRedTask org.apache.hadoop.hive.ql.exec.MapRedTask used on opensource projects

Example 1 with MapRedTask

use of org.apache.hadoop.hive.ql.exec.MapRedTask in project SQLWindowing by hbutani.

the class MRExecutor method executePlan.

/**
	 * Invoke the MapRedTask and set the MapRedWork 
	 * query plan to be used for execution.  
	 * MapRedTask (an extension to the ExecDriver) is 
	 * used to execute the query plan on Hadoop.
	 * @param mr
	 * @param hiveConf
	 * @throws Exception
	 */
private void executePlan(MapredWork mr, HiveConf hiveConf) throws Exception {
    MapRedTask mrtask = new MapRedTask();
    DriverContext dctx = new DriverContext();
    mrtask.setWork(mr);
    mrtask.initialize(hiveConf, null, dctx);
    int exitVal = mrtask.execute(dctx);
    if (exitVal != 0) {
        System.out.println("Test execution failed with exit status: " + exitVal);
        throw new WindowingException("Test execution failed with exit status: " + exitVal);
    } else
        System.out.println("Test execution completed successfully");
}