I've built a Flex application which is calling coldfusion CFC through remote objects in order to retrieve data.
2 days ago, I've updated the server with coldfusion 9 and my issue is that I have sometime those kind of error messages :
[RPC Fault faultString="error" faultCode="Channel.Call.Failed" faultDetail="NetConnection.Call.Failed: HTTP: Failed"]
[RPC Fault faultString="error" faultCode="Channel.Call.Failed" faultDetail="NetConnection.Call.Failed: HTTP: Status 503"]
[RPC Fault faultString="error" faultCode="Channel.Call.Failed" faultDetail="NetConnection.Call.Failed: HTTP: Status 500"]
[RPC Fault faultString="error" faultCode="Channel.Call.Failed" faultDetail="NetConnection.Call.Failed: HTTP: Status 504"]
[RPC Fault faultString="Send failed" faultCode="Client.Error.MessageSend" faultDetail="Channel.Connect.Failed error NetConnection.Call.Failed: HTTP: Failed: url: 'http://servername/flex2gateway/'"]
It was also happening on Coldfusion 8 and even on one other sever with another application.
(but same logic Flex -> remote Objects -> CFC -> sql2005).
When we were still running CF8 I added this <add-no-cache-headers>false</add-no-cache-headers> to the service-config.xml file but with no success.
I do not know if it's related to this but I also sometimes have this error message :
[RPC Fault faultString="Channel disconnected" faultCode="Client.Error.DeliveryInDoubt" faultDetail="Channel disconnected before an acknowledgement was received"]
Most if time the application is running fine, but I want to avoid this errors.
For example yesterday I recieved +- 50 times the NetConnection.Call.Failed error and 20 times Channel disconnected error.
Do not hesitate to ask if I need to post CF9 settings summary or something else.
Thank you for your help.
did you manage to resolve this problem. I'm experiencing the exact same problems now.
Our application runs smoothly on CF8, but after running the application on a new server with CF9 we have the random netconnection failed errors.
btw I am facing a worst issue ..
is there a patch for CF9 or BlazeDS to fix this :
[RPC Fault faultString="Detected duplicate HTTP-based FlexSessions, generally due to the remote host disabling session cookies. Session cookies must be enabled to manage the client connection correctly." faultCode="Server.Processing.DuplicateSessionDetected" faultDetail="null"]
hi all, I managed to fix this. The best explanation is here. http://blog.crankybit.com/flex-remoting-over-ssl/
It turned out that I wasn't connecting on SSL because services-config wasn't configured for a secure channel. Once the services-config was updated ColdFusion needed to be restarted.
I do not know why this isn't better documented.
You must create a crossdomain.xml file. Solution is here: http://www.flexnedir.com/flex-ve-coldfusion-channel-connect-failed/
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