Hi,
We are trying to build an internal AWS CloudWatch Driver that uses the AWS SDK Library. The new driver is only required to return the list of alarms that are currently present on the CloudWatch Alarms List. The following code should be retrieving the list of alarms:
However, we keep getting the following exception in the logs every time we try to retrieve the alarms.
Note that we use the following DLLs in the solution:
- AWSSDK.Core.dll
- AWSSDK.CloudWatch.dll
Amazon.Runtime.AmazonServiceException: A WebException with status ConnectFailure was thrown. —> System.Net.WebException: Unable to connect to the remote server —> System.Net.Sockets.SocketException: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 52.94.50.138:443
at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress)
at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Exception& exception)
— End of inner exception stack trace —
at System.Net.HttpWebRequest.GetRequestStream(TransportContext& context)
at System.Net.HttpWebRequest.GetRequestStream()
at Amazon.Runtime.Internal.HttpRequest.GetRequestContent()
at Amazon.Runtime.Internal.HttpHandler`1.InvokeSync(IExecutionContext executionContext)
at Amazon.Runtime.Internal.PipelineHandler.InvokeSync(IExecutionContext executionContext)
at Amazon.Runtime.Internal.Unmarshaller.InvokeSync(IExecutionContext executionContext)
at Amazon.Runtime.Internal.PipelineHandler.InvokeSync(IExecutionContext executionContext)
at Amazon.Runtime.Internal.ErrorHandler.InvokeSync(IExecutionContext executionContext)
— End of inner exception stack trace —
at Amazon.Runtime.Internal.WebExceptionHandler.HandleException(IExecutionContext executionContext, WebException exception)
at Amazon.Runtime.Internal.ExceptionHandler`1.Handle(IExecutionContext executionContext, Exception exception)
at Amazon.Runtime.Internal.ErrorHandler.ProcessException(IExecutionContext executionContext, Exception exception)
at Amazon.Runtime.Internal.ErrorHandler.InvokeSync(IExecutionContext executionContext)
at Amazon.Runtime.Internal.PipelineHandler.InvokeSync(IExecutionContext executionContext)
at Amazon.Runtime.Internal.CallbackHandler.InvokeSync(IExecutionContext executionContext)
at Amazon.Runtime.Internal.PipelineHandler.InvokeSync(IExecutionContext executionContext)
at Amazon.Runtime.Internal.Signer.InvokeSync(IExecutionContext executionContext)
at Amazon.Runtime.Internal.PipelineHandler.InvokeSync(IExecutionContext executionContext)
at Amazon.Runtime.Internal.EndpointDiscoveryHandler.InvokeSync(IExecutionContext executionContext)
at Amazon.Runtime.Internal.PipelineHandler.InvokeSync(IExecutionContext executionContext)
at Amazon.Runtime.Internal.CredentialsRetriever.InvokeSync(IExecutionContext executionContext)
at Amazon.Runtime.Internal.PipelineHandler.InvokeSync(IExecutionContext executionContext)
at Amazon.Runtime.Internal.RetryHandler.InvokeSync(IExecutionContext executionContext)
at Amazon.Runtime.Internal.PipelineHandler.InvokeSync(IExecutionContext executionContext)
at Amazon.Runtime.Internal.CallbackHandler.InvokeSync(IExecutionContext executionContext)
at Amazon.Runtime.Internal.PipelineHandler.InvokeSync(IExecutionContext executionContext)
at Amazon.Runtime.Internal.EndpointResolver.InvokeSync(IExecutionContext executionContext)
at Amazon.Runtime.Internal.PipelineHandler.InvokeSync(IExecutionContext executionContext)
at Amazon.Runtime.Internal.Marshaller.InvokeSync(IExecutionContext executionContext)
at Amazon.Runtime.Internal.PipelineHandler.InvokeSync(IExecutionContext executionContext)
at Amazon.Runtime.Internal.CallbackHandler.InvokeSync(IExecutionContext executionContext)
at Amazon.Runtime.Internal.PipelineHandler.InvokeSync(IExecutionContext executionContext)
at Amazon.Runtime.Internal.ErrorCallbackHandler.InvokeSync(IExecutionContext executionContext)
at Amazon.Runtime.Internal.PipelineHandler.InvokeSync(IExecutionContext executionContext)
at Amazon.Runtime.Internal.MetricsHandler.InvokeSync(IExecutionContext executionContext)
at Amazon.Runtime.Internal.RuntimePipeline.InvokeSync(IExecutionContext executionContext)
at Amazon.Runtime.AmazonServiceClient.Invoke[TResponse](AmazonWebServiceRequest request, InvokeOptionsBase options)
at Amazon.CloudWatch.AmazonCloudWatchClient.DescribeAlarms(DescribeAlarmsRequest request)
at Amazon.CloudWatch.AmazonCloudWatchClient.DescribeAlarms()
at QAction.Run(SLProtocolExt protocol)
Is this related to the security config of the DMA (TLS 1.2)?
Thanks,
Hi,
Since you are making your request directly through a QAction DataMiner settings shouldn’t affect that.
It seems that your request is timing out, try to increase ‘ReadWriteTimeout’ on your client config. Currently you are using all default settings as you don’t pass any ClientConfig object (pass when creating your client object).
I could run your code in a QAction without problem from my local DMA.
I’ve used AWSSDK.Core.3.7.2.10 and AWSSDK.CloudWatch.3.7.2.14. Can you check if you have the correct dlls on ProtocolScripts folder (make sure you don’t have those dlls in Files folder)? Otherwise not really sure what is happening there.
Looking at the stack trace, if the address below is the actual interface you have to poll, I’d suggest to check any ACL on the communication channel between DataMiner and the polled IP – I’d expect to poll a private IP in any case: is this feasible in your environment? Do you need to go via that IP address?
Hi Jorge,
Thanks for your help.
I configured the ReadWriteTimout to 45 seconds and I still receive the same exception! I also tried to set the “Timeout” property to the same amount of time but still having the same issue.
Not sure what else could be causing the issue. I tested the code in a Console Application running on the DMA and I get a response within a second or two!