DeadlineExceeded

在kubernetes 1.17.4 版本

这两行log 是一行 因为cmd 参数里有换行符导致大印到两行。
描述的含义，kubelet试图再container里执行一个命令，但是timeout，超时了。
Jun  8 04:02:34 all-in-one-01 kubelet: E0608 04:02:34.476604   17869 remote_runtime.go:351] ExecSync 09802cffb93b38777f36ca1bca03c6499cd5b10ea6667a8bc77e74fe75e1b989 'bash -c /usr/abc.py --probe=lutas --timeout=5
Jun  8 04:02:34 all-in-one-01 kubelet: ' from runtime service failed: rpc error: code = DeadlineExceeded desc = context deadline exceeded

	resp, err := r.runtimeClient.ExecSync(ctx, req)
	if err != nil {
		klog.Errorf("ExecSync %s '%s' from runtime service failed: %v", containerID, strings.Join(cmd, " "), err)
		return nil, nil, err
	}

// RemoteRuntimeService is a gRPC implementation of internalapi.RuntimeService.
type RemoteRuntimeService struct {
	timeout       time.Duration
	runtimeClient runtimeapi.RuntimeServiceClient
	// Cache last per-container error message to reduce log spam
	logReduction *logreduction.LogReduction
}

// Timer callback.
static void timer_callback(void* arg, grpc_error* error) {
  grpc_call_element* elem = static_cast(arg);
  grpc_deadline_state* deadline_state =
      static_cast(elem->call_data);
  if (error != GRPC_ERROR_CANCELLED) {
    error = grpc_error_set_int(
        GRPC_ERROR_CREATE_FROM_STATIC_STRING("Deadline Exceeded"),
        GRPC_ERROR_INT_GRPC_STATUS, GRPC_STATUS_DEADLINE_EXCEEDED);
    grpc_call_combiner_cancel(deadline_state->call_combiner,
                              GRPC_ERROR_REF(error));
    GRPC_CLOSURE_INIT(&deadline_state->timer_callback,
                      send_cancel_op_in_call_combiner, elem,
                      grpc_schedule_on_exec_ctx);
    GRPC_CALL_COMBINER_START(deadline_state->call_combiner,
                             &deadline_state->timer_callback, error,
                             "deadline exceeded -- sending cancel_stream op");
  } else {
    GRPC_CALL_STACK_UNREF(deadline_state->call_stack, "deadline_timer");
  }
}