/**
* This method is called in the Driver on every task. It updates counters and calls execute(),
* which is overridden in each task
*
* @return return value of execute()
*/
public int executeTask() {
try {
SessionState ss = SessionState.get();
this.setStarted();
if (ss != null) {
ss.getHiveHistory().logPlanProgress(queryPlan);
}
int retval = execute(driverContext);
this.setDone();
if (ss != null) {
ss.getHiveHistory().logPlanProgress(queryPlan);
}
return retval;
} catch (IOException e) {
throw new RuntimeException("Unexpected error: " + e.getMessage(), e);
}
}
@Override
public void logPlanProgress(SessionState ss) throws IOException {
ss.getHiveHistory().logPlanProgress(queryPlan);
}