return$self->fetch_all("JOIN job j USING(worker_id) WHERE j.status NOT IN ('DONE', 'READY', 'FAILED', 'PASSED_ON') GROUP BY worker_id");
return$self->fetch_all("JOIN job j USING(worker_id) WHERE w.status='DEAD' AND j.status NOT IN ('DONE', 'READY', 'FAILED', 'PASSED_ON') GROUP BY worker_id");