Hi, It's been a while since I posted on the group, I've been lucky enough to not have many big problems while developing with Flex in the past 6 months!
But last week whilst testing a significant section of my flex application, it was discovered that the flash client was having problems receiving a result from the flash remoting gateway on certain occasions. This is a BIG problem, especially as I am coming to the end of the contract with my employer, and I'm trying to get the project wrapped up for next week! I am developing in Flex 1.5 (using remote objects to consume the Coldfusion CFCs), with Coldfusion MX 7.0.2 running in the back end, and MS SQL 2005 (although i dont think the databse is anything to do with the problem), on a Windows Server 2003 SP2 server. I have ruled out a number of issues that I believe could be the problem, including: Network connections (the flash client can communicate with the server no problem, initially!) Coldfusion (the CFC method is being invoked successfully, and returning the result to - I dump the result to a html log file) Flash Remoting Gateway (The log files confirm that the gateway completes sending the result back to the ) Flash Client (I have tried replicating the steps followed on a number of different client machines, all fail at the same point) When the Flex application initially loads, it invokes 23 methods in the Coldfusion CFC, which returns all the results with no problem. The user then adds some data to the form on the flash client (the Flex application). The form contains a combo box that the user selects a category from. When the category changes, a CFC method is invoked (one of the 23 that was invoked only moments earlier), which returns a Boolean value, to check if the category has any sub categories. >From time to time (and more often than not) when this method is invoked, the flash client just sits idle with the timer icon spinning around (it is waiting for a response from the flash remoting gateway). I have checked the flash remoting gateway log files, and the result is being returned by the gateway. It seems that the flash client is not receiving the response. There are many other sections in the application where flex/flash clients consume Coldfusion CFC's, again they can be temperamental and hang, waiting for a response indefinitely! I believe my Flex application is ok, as it successfully invokes the CFC method without any problems; it just seems to hang on certain occasions. Maybe the flash remoting gateway is not correctly configured? I also thought it might be a http connection issue with the server, but as far as i know, the CFCs are invoked, the result is sent back, and the http connection is closed. I also thought it might have been a session-based issue with the Coldfusion CFCs, but i think i have ruled that out. If anyone could help me I would be in serious debt to them! As I said I am coming to the end of this project and I don't need this problem right now. I have tired ruling out every possibility, but to no end can I find the source of the problem. Regards, Barry p.s. here is a dump of the flash remoting gateway log when the flex application is first loaded in the browser, and the result of the first CFC method invocation... 4/26 12:22:41 [INFO] RemoteObject_AMF: Creating Service for remoting.plants 4/26 12:22:41 [INFO] RemoteObject_AMF: Creating gateway connection for http://carndevserver:8500/flashservices/gateway 4/26 12:22:41 [INFO] RemoteObject_AMF: Successfully created Service 4/26 12:22:41 [INFO] RemoteObject_AMF: Creating Service for remoting.miscTables 4/26 12:22:41 [INFO] RemoteObject_AMF: Successfully created Service ERROR: ComboBox dataProvider must be instance of Array, ResultSet, or implement the DataProvider methods 4/26 12:22:42 [INFO] RemoteObject_AMF: Invoking rgetSoilTypes on remoting.miscTables 4/26 12:22:42 [INFO] RemoteObject_AMF: Invoking rgetDurabilities on remoting.miscTables 4/26 12:22:42 [INFO] RemoteObject_AMF: Invoking rgetGenusNames on remoting.miscTables 4/26 12:22:42 [INFO] RemoteObject_AMF: Invoking rgetSpeciesNames on remoting.miscTables 4/26 12:22:42 [INFO] RemoteObject_AMF: Invoking rgetCategories on remoting.miscTables 4/26 12:22:42 [INFO] RemoteObject_AMF: Invoking rgetColours on remoting.miscTables 4/26 12:22:42 [INFO] RemoteObject_AMF: Invoking rgetHardiness on remoting.miscTables 4/26 12:22:42 [INFO] RemoteObject_AMF: Invoking rgetComposts on remoting.miscTables 4/26 12:22:42 [INFO] RemoteObject_AMF: Invoking rgetGrowthHabits on remoting.miscTables 4/26 12:22:42 [INFO] RemoteObject_AMF: Invoking rgetToxicities on remoting.miscTables 4/26 12:22:42 [INFO] RemoteObject_AMF: Invoking rgetCommonNames on remoting.miscTables 4/26 12:22:42 [INFO] RemoteObject_AMF: Invoking rgetLightLevels on remoting.miscTables 4/26 12:22:42 [INFO] RemoteObject_AMF: Invoking rgetPositions on remoting.miscTables 4/26 12:22:42 [INFO] RemoteObject_AMF: Invoking rgetSeasons on remoting.miscTables 4/26 12:22:42 [INFO] RemoteObject_AMF: Invoking rgetNatureFeatures on remoting.miscTables 4/26 12:22:43 [INFO] RemoteObject_AMF: Invoking rgetFoliageTypes on remoting.miscTables 4/26 12:22:43 [INFO] RemoteObject_AMF: Invoking rgetFertilities on remoting.miscTables 4/26 12:22:43 [INFO] RemoteObject_AMF: Invoking rgetGrowthRates on remoting.miscTables 4/26 12:22:43 [INFO] RemoteObject_AMF: Invoking rgetMoistures on remoting.miscTables 4/26 12:22:43 [INFO] RemoteObject_AMF: Invoking rgetsoilpHs on remoting.miscTables 4/26 12:22:43 [INFO] RemoteObject_AMF: Invoking rgetSkillLevels on remoting.miscTables 4/26 12:22:43 [INFO] RemoteObject_AMF: Invoking rGetDurabilities on remoting.miscTables 4/26 12:22:43 [INFO] RemoteObject_AMF: Invoking rgetSoilTypes on remoting.miscTables WARNING: no result handler was set for a method that returned data. WARNING: The method just returned: [object Object] 4/26 12:22:45 [INFO] RemoteObject_AMF: remoting.miscTables.rgetSoilTypes() returned {_items: [{soilType: "Chalky", soilTypeDesc: "Soil with strong alkaline presence", soilTypeID: 20}, {soilType: "Clay", soilTypeDesc: "Clay soil ", soilTypeID: 12}, {soilType: "Fertile", soilTypeDesc: "Rich in nutrients", soilTypeID: 18}, {soilType: "Loamy", soilTypeDesc: "Almost normal soil, squarely between clay and sandy, crumbles easily in your hands.", soilTypeID: 21}, {soilType: "Peaty", soilTypeDesc: "Open light structure.", soilTypeID: 16}, {soilType: "Sandy", soilTypeDesc: "Sandy soil is very sandy", soilTypeID: 6}, {soilType: "Silty", soilTypeDesc: "Free draining soil.", soilTypeID: 17}], gateway_conn: {_config: {_debug: true, app_server: {_debug: true, amf: false, amfheaders: false, coldfusion: true, error: true, httpheaders: false, recordset: true, trace: true}, client: {_debug: true, http: true, recordset: true, rtmp: true, trace: true}, realtime_server: {_debug: true, trace: true}}, _headerAdded: true, _id: 0, _protocol: "http", contentType: "application/x-fcs", netDebugProxyFunctions: true}, mRecordsAvailable: 7, mTitles: ["soilTypeID", "soilType", "soilTypeDesc"], serverInfo: null, uniqueID: 0}
