Aws-iot-device-sdk-python-v2: message='连接被意外关闭。', code=5134 region us-west-1

你用的是什么版本的python3和Ubuntu？ 另外，您对 IAM 策略使用了哪些权限？ 您的连接似乎有问题，因此我建议您从AWSIoTFullAccess开始，以排除您的政策存在问题。 只需确保将其限制为您以后实际需要的操作和资源即可。

AWSIoTFullAccess：

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "iot:*"
            ],
            "Resource": "*"
        }
    ]
}

至于您提到的其他内容，其中一个在网址中有iot ，而另一个有iotv2 。 哪一个是为您工作的？

感谢 jmklix 的回复。
您的建议是专门针对 MQTT 的吗？
我让 websockets 可以工作，但只能使用 .aws 凭据，我认为这对于我们的用例来说是不需要的。
websockets可以使用mqtt消费的证书文件（xxxx.pem xxx.private.key xxx.public.key）进行认证和授权吗？

是的，我了解了 iot/iot2 网址……是否有一些文档可以解释两个 iot 核心版本之间的区别？
还有2个客户端python sdks afaik - 一个用于python 2.7，另一个用于python 3，还有更多区别吗？ 它们与 iot 和 iot2 核心版本紧密配对吗？ 它们是交叉还是向后兼容？ 有这方面的文件吗？

是的，它适用于 MQTT。 不，您不能将证书文件与网络套接字一起使用

您可以编辑已在 AWS 控制台上创建的 IoT things策略。 选择thing并在子侧栏上选择安全性。 在那里您应该看到证书，并且您需要选择该证书。 一旦打开选择子侧栏上的策略。 然后选择该策略，最后单击Edit policy document并粘贴我之前列出的 AWSIoTFullAccess。 默认策略不适用于 v2 sdk。 如果您需要任何其他解释，请告诉我。

iot网址是您要使用的网址，因为 iotv2 应该不再可见，并且很快就会被删除。 python和iot sdk相互独立，没有关系。 iot v1 支持 python 2 和 3，而 iot v2 仅支持 python 3。 iot sdk 不是交叉或向后兼容的，v2 api 的文档可以在这里找到。

我有同样的问题，我使用了上面包含的策略@jmklix ，手动创建了一个新证书，将其链接到 IoT 事物和策略，并下载了 .pem、私钥和 root-CA，如下所示：

python3 shadow.py --endpoint xxxxxxxxxx-ats.iot.us-east-2.amazonaws.com --root-ca root-CA.crt --cert 726290b105-certificate.pem.crt --key 726290b105-private.pem.key --thing-name MyThingName

shadow.py 示例说 --cert 应该是 .pem 格式，所以我也尝试使用 726290b105-certificate.pem

pubsub.py 示例也会发生同样的错误。

我正在使用带有 Python 3 的 Raspberry pi。

尝试使用 PyPI 安装并使用源代码安装。

错误发生在 shadow.py 示例中的connected_future.result()中。

我有一个使用 MQTT 发布的组件，类似于 ipc_greengrass.py 示例，它运行良好。

我怀疑在包含密钥、证书和 --rood-ca 时我做错了什么。 虽然我仔细检查了文件的格式。 我收到此错误：

Traceback (most recent call last):
  File "shadow.py", line 275, in <module>
    connected_future.result()
  File "/usr/lib/python3.7/concurrent/futures/_base.py", line 432, in result
    return self.__get_result()
  File "/usr/lib/python3.7/concurrent/futures/_base.py", line 384, in __get_result
    raise self._exception
awscrt.exceptions.AwsCrtError: AwsCrtError(name='AWS_ERROR_MQTT_UNEXPECTED_HANGUP', 
message='The connection was closed unexpectedly.',
code=5134)

运行 --verbosity --debug

[INFO] [2021-02-18T19:57:17Z] [b7b6bec0] [event-loop] - id=0xa4371f0: Initializing edge-triggered epoll
[DEBUG] [2021-02-18T19:57:17Z] [b7b6bec0] [event-loop] - id=0xa4371f0: Eventfd not available, falling back to pipe for cross-thread notification.
[INFO] [2021-02-18T19:57:17Z] [b7b6bec0] [event-loop] - id=0xa4371f0: Starting event-loop thread.
[INFO] [2021-02-18T19:57:17Z] [b7b6bec0] [dns] - id=0xa42b310: Initializing default host resolver with 16 max host entries.
[INFO] [2021-02-18T19:57:17Z] [b7050b40] [thread] - id=0xa3eeb8c: a cpu affinity was specified when launching this thread and set_mempolicy() is available on this system. Setting the memory policy to MPOL_PREFERRED
[WARN] [2021-02-18T19:57:17Z] [b7050b40] [thread] - id=0xa3eeb8c: call to set_mempolicy() failed with errno 38
[INFO] [2021-02-18T19:57:17Z] [b7b6bec0] [channel-bootstrap] - id=0xa44d200: Initializing client bootstrap with event-loop group 0xa43ea60
[INFO] [2021-02-18T19:57:17Z] [b684fb40] [event-loop] - id=0xa4371f0: main loop started
[INFO] [2021-02-18T19:57:17Z] [b684fb40] [event-loop] - id=0xa4371f0: default timeout 100000, and max events to process per tick 100
[DEBUG] [2021-02-18T19:57:17Z] [b7b6bec0] [tls-handler] - ctx: Certificate and key have been set, setting them up now.
[DEBUG] [2021-02-18T19:57:17Z] [b7b6bec0] [tls-handler] - ctx: Setting ALPN list x-amzn-mqtt-ca
Connecting to <endpoint> with client ID 'test-1e0e6e8b-ee1f-441d-8956-69aaedcb937d'...
[DEBUG] [2021-02-18T19:57:17Z] [b7b6bec0] [mqtt-client] - client=0xa4ee030: Initalizing MQTT client
[DEBUG] [2021-02-18T19:57:17Z] [b7b6bec0] [mqtt-client] - id=0xa450e40: Creating new connection
[DEBUG] [2021-02-18T19:57:17Z] [b7b6bec0] [mqtt-topic-tree] - tree=0xa450f94: Creating new topic tree
[DEBUG] [2021-02-18T19:57:17Z] [b7b6bec0] [mqtt-client] - id=0xa450e40: Begin connecting process, switch state to CONNECTING.
[INFO] [2021-02-18T19:57:17Z] [b7b6bec0] [mqtt-client] - id=0xa450e40: using ping timeout of 3000000000 ns
[DEBUG] [2021-02-18T19:57:17Z] [b7b6bec0] [dns] - id=0xa42b310: Host resolution requested for a1ypu7uyt3br9h-ats.iot.us-east-2.amazonaws.com
[DEBUG] [2021-02-18T19:57:17Z] [b7b6bec0] [dns] - id=0xa42b310: No cached entries found for a1ypu7uyt3br9h-ats.iot.us-east-2.amazonaws.com starting new resolver thread.
[DEBUG] [2021-02-18T19:57:17Z] [b5754b40] [dns] - static: resolving host a1ypu7uyt3br9h-ats.iot.us-east-2.amazonaws.com
[DEBUG] [2021-02-18T19:57:17Z] [b5754b40] [dns] - static: resolved record: 3.131.31.52
[DEBUG] [2021-02-18T19:57:17Z] [b5754b40] [dns] - static: resolved record: 52.15.119.124
[DEBUG] [2021-02-18T19:57:17Z] [b5754b40] [dns] - static: resolved record: 13.59.30.89
[DEBUG] [2021-02-18T19:57:17Z] [b5754b40] [dns] - static: resolved record: 2600:1f00:6000::383:1f34
[DEBUG] [2021-02-18T19:57:17Z] [b5754b40] [dns] - static: resolved record: 2600:1f00:6000::340f:777c
[DEBUG] [2021-02-18T19:57:17Z] [b5754b40] [dns] - static: resolved record: 2600:1f00:6000::d3b:1e59
[DEBUG] [2021-02-18T19:57:17Z] [b5754b40] [dns] - static: new address resolved 3.131.31.52 for host a1ypu7uyt3br9h-ats.iot.us-east-2.amazonaws.com caching
[DEBUG] [2021-02-18T19:57:17Z] [b5754b40] [dns] - static: new address resolved 52.15.119.124 for host a1ypu7uyt3br9h-ats.iot.us-east-2.amazonaws.com caching
[DEBUG] [2021-02-18T19:57:17Z] [b5754b40] [dns] - static: new address resolved 13.59.30.89 for host a1ypu7uyt3br9h-ats.iot.us-east-2.amazonaws.com caching
[DEBUG] [2021-02-18T19:57:17Z] [b5754b40] [dns] - static: new address resolved 2600:1f00:6000::383:1f34 for host a1ypu7uyt3br9h-ats.iot.us-east-2.amazonaws.com caching
[DEBUG] [2021-02-18T19:57:17Z] [b5754b40] [dns] - static: new address resolved 2600:1f00:6000::340f:777c for host a1ypu7uyt3br9h-ats.iot.us-east-2.amazonaws.com caching
[DEBUG] [2021-02-18T19:57:17Z] [b5754b40] [dns] - static: new address resolved 2600:1f00:6000::d3b:1e59 for host a1ypu7uyt3br9h-ats.iot.us-east-2.amazonaws.com caching
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [task-scheduler] - id=0xb4e03050: Scheduling attempt_connection task for immediate execution
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [task-scheduler] - id=0xb4e03b50: Scheduling attempt_connection task for immediate execution
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [task-scheduler] - id=0xb4e03050: Running attempt_connection task with <Running> status
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [socket] - id=0xb5d00b70 fd=7: initializing with domain 1 and type 0
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [socket] - id=0xb5d00b70 fd=7: setting socket options to: keep-alive 0, keep idle 0, keep-alive interval 0, keep-alive probe count 0.
[WARN] [2021-02-18T19:57:17Z] [b684fb40] [socket] - id=0xb5d00b70 fd=7: setsockopt() for NO_SIGNAL failed with errno 92. If you are having SIGPIPE signals thrown, you may want to install a signal trap in your application layer.
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [socket] - id=0xb5d00b70 fd=7: beginning connect.
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [socket] - id=0xb5d00b70 fd=7: connecting to endpoint 2600:1f00:6000::383:1f34:443.
[ERROR] [2021-02-18T19:57:17Z] [b684fb40] [socket] - id=0xb5d00b70 fd=7: connect failed with error code 101.
[INFO] [2021-02-18T19:57:17Z] [b684fb40] [dns] - id=0xa42b310: recording failure for record 2600:1f00:6000::383:1f34 for a1ypu7uyt3br9h-ats.iot.us-east-2.amazonaws.com, moving to bad list
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [dns] - static: purging address 2600:1f00:6000::383:1f34 for host a1ypu7uyt3br9h-ats.iot.us-east-2.amazonaws.com from the cache due to cache eviction or shutdown
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [socket] - id=0xb5d00b70 fd=7: is still open, closing...
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [socket] - id=0xb5d00b70 fd=7: closing
[ERROR] [2021-02-18T19:57:17Z] [b684fb40] [channel-bootstrap] - id=0xa44d200: failed to create socket with error 1049
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [task-scheduler] - id=0xb4e03b50: Running attempt_connection task with <Running> status
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [socket] - id=0xb5d00b70 fd=7: initializing with domain 0 and type 0
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [socket] - id=0xb5d00b70 fd=7: setting socket options to: keep-alive 0, keep idle 0, keep-alive interval 0, keep-alive probe count 0.
[WARN] [2021-02-18T19:57:17Z] [b684fb40] [socket] - id=0xb5d00b70 fd=7: setsockopt() for NO_SIGNAL failed with errno 92. If you are having SIGPIPE signals thrown, you may want to install a signal trap in your application layer.
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [socket] - id=0xb5d00b70 fd=7: beginning connect.
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [socket] - id=0xb5d00b70 fd=7: connecting to endpoint 3.131.31.52:443.
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [task-scheduler] - id=0xb5d01aa0: Scheduling (null) task for future execution at time 8129633861413
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [task-scheduler] - id=0xb5d01ae0: Scheduling epoll_event_loop_unsubscribe_cleanup task for immediate execution
[INFO] [2021-02-18T19:57:17Z] [b684fb40] [socket] - id=0xb5d00b70 fd=7: connection success
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [socket] - id=0xb5d00b70 fd=7: local endpoint 10.0.2.15:39292
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [socket] - id=0xb5d00b70 fd=7: assigning to event loop 0xa4371f0
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [channel-bootstrap] - id=0xa44d200: client connection on socket 0xb5d00b70 completed with error 0.
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [channel] - id=0xb5d01c70: Beginning creation and setup of new channel.
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [task-scheduler] - id=0xb5d01e30: Scheduling on_channel_setup_complete task for immediate execution
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [task-scheduler] - id=0xb5d01ae0: Running epoll_event_loop_unsubscribe_cleanup task with <Running> status
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [task-scheduler] - id=0xb5d01e30: Running on_channel_setup_complete task with <Running> status
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [channel] - id=0xb5d01c70: setup complete, notifying caller.
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [channel] - id=0xb5d01c70: no message pool is currently stored in the event-loop local storage, adding 0xb5d01f80 with max message size 16384, message count 4, with 4 small blocks of 128 bytes.
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [channel-bootstrap] - id=0xa44d200: channel 0xb5d01c70 setup succeeded: bootstrapping.
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [socket-handler] - id=0xb5d12620: Socket handler created with max_read_size of 16384
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [task-scheduler] - id=0xb5d12718: Scheduling tls_timeout task for future execution at time 8134691976802
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [tls-handler] - id=0xb5d12700: Alpn protocol negotiated as x-amzn-mqtt-ca
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [tls-handler] - id=0xb5d12700: Remote server name is a1ypu7uyt3br9h-ats.iot.us-east-2.amazonaws.com
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [channel-bootstrap] - id=0xa44d200: tls negotiation result 0 on channel 0xb5d01c70
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [mqtt-client] - id=0xa450e40: Connection successfully opened, sending CONNECT packet
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [task-scheduler] - id=0xb5d2c800: Scheduling mqtt_connack_timeout task for future execution at time 8127847022119
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [mqtt-client] - id=0xa450e40: Adding username ?SDK=PythonV2&Version=0.9.15 to connection
Traceback (most recent call last):
  File "shadow.py", line 275, in <module>
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [tls-handler] - id=0xb5d12700: Alert code 0
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [task-scheduler] - id=0xb5d01d88: Scheduling channel_shutdown task for immediate execution
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [task-scheduler] - id=0xb5d01d88: Running channel_shutdown task with <Running> status
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [channel] - id=0xb5d01c70: beginning shutdown process
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [channel] - id=0xb5d01c70: handler 0xb5d12620 shutdown in read dir completed.
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [tls-handler] - id=0xb5d12700: Shutting down read direction with error code 0
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [channel] - id=0xb5d01c70: handler 0xb5d12700 shutdown in read dir completed.
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [channel] - id=0xb5d01c70: handler 0xa450e54 shutdown in read dir completed.
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [task-scheduler] - id=0xb5d01c84: Scheduling (null) task for immediate execution
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [task-scheduler] - id=0xb5d01c84: Running (null) task with <Running> status
[INFO] [2021-02-18T19:57:17Z] [b684fb40] [mqtt-client] - id=0xa450e40: sending disconnect message as part of graceful shutdown.
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [mqtt-client] - id=0xa450e40: failed to send courteous disconnect io message
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [channel] - id=0xb5d01c70: handler 0xa450e54 shutdown in write dir completed.
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [tls-handler] - id=0xb5d12700: Shutting down write direction
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [channel] - id=0xb5d01c70: handler 0xb5d12700 shutdown in write dir completed.
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [socket] - id=0xb5d00b70 fd=7: closing
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [task-scheduler] - id=0xb5d01c40: Scheduling epoll_event_loop_unsubscribe_cleanup task for immediate execution
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [task-scheduler] - id=0xb5d12674: Scheduling socket_handler_close task for immediate execution
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [task-scheduler] - id=0xb5d01c40: Running epoll_event_loop_unsubscribe_cleanup task with <Running> status
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [task-scheduler] - id=0xb5d12674: Running socket_handler_close task with <Running> status
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [channel] - id=0xb5d01c70: handler 0xb5d12620 shutdown in write dir completed.
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [task-scheduler] - id=0xb5d01c84: Scheduling (null) task for immediate execution
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [task-scheduler] - id=0xb5d01c84: Running (null) task with <Running> status
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [channel] - id=0xb5d01c70: during shutdown, canceling task 0xb5d12718
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [task-scheduler] - id=0xb5d12718: Running tls_timeout task with <Canceled> status
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [channel] - id=0xb5d01c70: during shutdown, canceling task 0xb5d2c800
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [task-scheduler] - id=0xb5d2c800: Running mqtt_connack_timeout task with <Canceled> status
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [channel-bootstrap] - id=0xa44d200: channel 0xb5d01c70 shutdown with error 0.
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [channel] - id=0xb5d01c70: destroying channel.
[DEBUG] [2021-02-18T19:57:17Z] [b684fb40] [channel-bootstrap] - id=0xa44d200: releasing bootstrap reference
    connected_future.result()
  File "/usr/lib/python3.7/concurrent/futures/_base.py", line 432, in result
    return self.__get_result()
  File "/usr/lib/python3.7/concurrent/futures/_base.py", line 384, in __get_result
    raise self._exception
awscrt.exceptions.AwsCrtError: AwsCrtError(name='AWS_ERROR_MQTT_UNEXPECTED_HANGUP', message='The connection was closed unexpectedly.', code=5134)
[DEBUG] [2021-02-18T19:57:17Z] [b7b6bec0] [mqtt-client] - id=0xa450e40: user called disconnect.
[ERROR] [2021-02-18T19:57:17Z] [b7b6bec0] [mqtt-client] - id=0xa450e40: Connection is not open, and may not be closed
[DEBUG] [2021-02-18T19:57:17Z] [b7b6bec0] [mqtt-client] - id=0xa450e40: Last refcount on connection has been released, start destroying the connection.
[DEBUG] [2021-02-18T19:57:17Z] [b7b6bec0] [mqtt-client] - id=0xa450e40: Destroying connection
[DEBUG] [2021-02-18T19:57:17Z] [b7b6bec0] [mqtt-topic-tree] - tree=0xa450f94: Cleaning up topic tree
[DEBUG] [2021-02-18T19:57:17Z] [b7b6bec0] [mqtt-client] - client=0xa4ee030: Cleaning up MQTT client
[DEBUG] [2021-02-18T19:57:17Z] [b7b6bec0] [channel-bootstrap] - id=0xa44d200: releasing bootstrap reference
[DEBUG] [2021-02-18T19:57:17Z] [b7b6bec0] [channel-bootstrap] - id=0xa44d200: releasing bootstrap reference
[DEBUG] [2021-02-18T19:57:17Z] [b7b6bec0] [channel-bootstrap] - id=0xa44d200: destroying

我现在感觉很笨，对我来说错误是我没有在 IoT 控制台中激活证书。 这是愚蠢的，但可以帮助别人

@hackaprende感谢您分享您遇到问题的解决方案。

在这里发帖以防万一这有助于任何未来的搜索者，我也收到错误awscrt.exceptions.AwsCrtError: AWS_ERROR_MQTT_UNEXPECTED_HANGUP: The connection was closed unexpectedly.对我来说，事实证明我没有_激活_AWS IoT 事物证书。 创建它之后，还有另一个步骤来激活它。