}
if (task instanceof ExecDriver) {
ExecDriver mrTask = (ExecDriver) task;
extractOperatorCounters(mrTask.getWork().getMapWork().getAliasToWork().values(),
task.getId() + "_MAP");
if (mrTask.mapStarted()) {
started.add(task.getId() + "_MAP");
}
if (mrTask.mapDone()) {
done.add(task.getId() + "_MAP");
}