'Get the task logs from the DB in child cells.'

def task_log_get_all(self, ctxt, task_name, period_beginning, period_ending, host=None, state=None):

    cctxt = self.client.prepare(version='1.3')
    return cctxt.call(ctxt, 'task_log_get_all', task_name=task_name, period_beginning=period_beginning, period_ending=period_ending, host=host, state=state)
