Random Net connection call failed errors

[aubweb]

Hi All,

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.

Aubry

[Dik1]

Hi Aubry,

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.

Best regards,

Dik

[aubweb]

Unfortunately no...

[Dik1]

That's a pity, but thanks for the reply.

Dik

[aubweb]

Any updates ?

[deborama]

I am also having this problem. why can't adobe document the setup better?  I figure it is just some sort of permission or encoding error ?

?

[aubweb]

I hope that someone will read us ...

it's like throwing a bottle with a message in the ocean...

Does someone will receive my message ? ...

[ilssac]

Received the message, but I know nothing about the issue, so I'm not sure what good it does ya.

[aubweb]

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"]

?

[deborama]

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.

Deb

[esrefatak]

You must create a crossdomain.xml file. Solution is here: http://www.flexnedir.com/flex-ve-coldfusion-channel-connect-failed/