Greengrass_HelloWorld lambda不发布到IoT控制台

Question

我一直在跟踪文档的每一步，我没有遇到任何错误。配置、部署并订阅hello/world主题，正如文档所详述的那样。但是，当我到达这里的测试步骤时：https://docs.aws.amazon.com/greengrass/latest/developerguide/lambda-check.html

没有消息显示在IoT控制台上(订阅视图hello/world)！我使用绿草核心守护进程，它运行在我的Ubuntu机器上，它是活动的，并且监听端口8000。我不认为我的本地设备有什么问题，因为这个小组已经成功部署，而且我认为Wireshark上的通信是双向的。

我的机器上有这些日志: /home/##/Desktop/greengrass/ggc/var/log/system/runtime.log：

[2019-09-28T06:57:42.492-07:00][INFO]-===========================================
[2019-09-28T06:57:42.492-07:00][INFO]-Greengrass Version: 1.9.3-RC3
[2019-09-28T06:57:42.492-07:00][INFO]-Greengrass Root: /home/##/Desktop/greengrass
[2019-09-28T06:57:42.492-07:00][INFO]-Greengrass Write Directory: /home/##/Desktop/greengrass/ggc
[2019-09-28T06:57:42.492-07:00][INFO]-Group File Directory: /home/##/Desktop/greengrass/ggc/deployment/group
[2019-09-28T06:57:42.492-07:00][INFO]-Default Lambda UID: 122
[2019-09-28T06:57:42.492-07:00][INFO]-Default Lambda GID: 127
[2019-09-28T06:57:42.492-07:00][INFO]-===========================================
[2019-09-28T06:57:42.492-07:00][INFO]-The current core is using the AWS IoT certificates with fingerprint.  {"fingerprint": "90##4d"}
[2019-09-28T06:57:42.492-07:00][INFO]-Will persist worker process info. {"dir": "/home/##/Desktop/greengrass/ggc/ggc/core/var/worker/processes"}
[2019-09-28T06:57:42.493-07:00][INFO]-Will persist worker process info. {"dir": "/home/##/Desktop/greengrass/ggc/ggc/core/var/worker/processes"} 
[2019-09-28T06:57:42.494-07:00][INFO]-No proxy URL found.
[2019-09-28T06:57:42.495-07:00][INFO]-Started Deployment Agent to listen for updates. [2019-09-28T06:57:42.495-07:00][INFO]-Connecting with MQTT.   {"endpoint": "a6##ws-ats.iot.us-east-2.amazonaws.com:8883", "clientId": "simulators_gg_Core"}
[2019-09-28T06:57:42.497-07:00][INFO]-The current core is using the AWS IoT certificates with fingerprint.  {"fingerprint": "90##4d"}
[2019-09-28T06:57:42.685-07:00][INFO]-MQTT connection successful.   {"attemptId": "GVko", "clientId": "simulators_gg_Core"}
[2019-09-28T06:57:42.685-07:00][INFO]-MQTT connection established.  {"endpoint": "a6##ws-ats.iot.us-east-2.amazonaws.com:8883", "clientId": "simulators_gg_Core"} 
[2019-09-28T06:57:42.685-07:00][INFO]-MQTT connection connected. Start subscribing. {"clientId": "simulators_gg_Core"} 
[2019-09-28T06:57:42.685-07:00][INFO]-Deployment agent connected to cloud. 
[2019-09-28T06:57:42.685-07:00][INFO]-Start subscribing.    {"numOfTopics": 2, "clientId": "simulators_gg_Core"}
[2019-09-28T06:57:42.685-07:00][INFO]-Trying to subscribe to topic $aws/things/simulators_gg_Core-gda/shadow/update/delta
[2019-09-28T06:57:42.727-07:00][INFO]-Trying to subscribe to topic $aws/things/simulators_gg_Core-gda/shadow/get/accepted
[2019-09-28T06:57:42.814-07:00][INFO]-All topics subscribed.    {"clientId": "simulators_gg_Core"}
[2019-09-28T06:58:57.888-07:00][INFO]-Daemon received signal: terminated. [2019-09-28T06:58:57.888-07:00][INFO]-Shutting down daemon. 
[2019-09-28T06:58:57.888-07:00][INFO]-Stopping all workers.
[2019-09-28T06:58:57.888-07:00][INFO]-Lifecycle manager is stopped.
[2019-09-28T06:58:57.888-07:00][INFO]-IPC server stopped.

/home/##/Desktop/greengrass/ggc/var/log/system/localwatch/localwatch.log：

[2019-09-28T06:57:42.491-07:00][DEBUG]-will keep the log files for the following lambdas    {"readingPath": "/home/##/Desktop/greengrass/ggc/var/log/user", "lambdas": "map[]"}   
[2019-09-28T06:57:42.492-07:00][WARN]-failed to list the user log directory {"path": "/home/##/Desktop/greengrass/ggc/var/log/user"}

提前谢谢。

Answer 1

我在另一个平台(Jetson )上也有类似的问题。经过AWS指令后，我无法得到一个响应，因为它使用IOT建立了一个简单的Lambda。在我寻找答案的过程中，我发现AWS为您连接的任何设备都提供了资格测试脚本。

它通过部署和测试lambda函数(以及其他功能)的自动化过程，报告每个步骤的结果，文档提供故障排除信息。

通过通过这些测试，我能够缩小安装、安装和配置方面的问题。测试文档提供了对测试结果进行故障排除的指针。下面是到测试的链接：https://docs.aws.amazon.com/greengrass/latest/developerguide/device-tester-for-greengrass-ug.html

如果你遵循“下一个主题”的链接，它将带你通过完整的测试。让我警告你，它的广泛，并将需要一些时间，但对我来说，它给了很多详细的洞察力，一个你好的世界并不。