Configuration conf = new TajoConf();
QueryUnitAttemptScheduleEvent.QueryUnitAttemptScheduleContext scheduleContext =
new QueryUnitAttemptScheduleEvent.QueryUnitAttemptScheduleContext();
ExecutionBlockId ebId = TajoIdUtils.createExecutionBlockId("eb_000001_00001_00001");
for (int i = 0; i < 10; i++) {
QueryUnitId id = new QueryUnitId(ebId, i);
QueryUnit queryUnit = new QueryUnit(conf, scheduleContext, id, true, null);
queryUnits.add(queryUnit);