fix to handle forwarding in the slurmd when we get an issue receiving the...

fix to handle forwarding in the slurmd when we get an issue receiving the message after we have forwarded it.

src/slurmd/slurmd/slurmd.c

@@ -359,12 +359,18 @@ _service_connection(void *arg)
 {
 	conn_t *con = (conn_t *) arg;
 	slurm_msg_t *msg = xmalloc(sizeof(slurm_msg_t));
-		
+	int rc = SLURM_SUCCESS;
+	
 	debug3("in the service_connection");
 	slurm_msg_t_init(msg);
-	if((slurm_receive_and_forward_msgs(con->fd, con->cli_addr, msg, 0)) 
+	if((rc = slurm_receive_and_forward_msgs(
+		    con->fd, con->cli_addr, msg, 0))
 	   != SLURM_SUCCESS) {
 		error("service_connection: slurm_receive_msg: %m");
+		/* if this fails we need to make sure the nodes we forward
+		   to are taken care of and sent back. This way the control
+		   also has a better idea what happened to us */
+		slurm_send_rc_msg(msg, rc);
 		goto cleanup;
 	}
 	debug2("got this type of message %d with %d other responses",