It's a MSSQL DB, with MSSQL connection.
Note: I decided to try reinstalling Visual Cron 8.2.3 to see if having a completely clean install would help. Once I was running again, it worked... Once. after that, same error.
That was yesterday. Today I launch it to get the log output and... it works again. At least long enough for me to one of the tasks I've been needing to add. After that I tried adding another one, and we're back to the same error. I close the VC GUI, relaunch and try again, and now it works again (it got the sproc list instantly that time too). Several retries worked.
Then, after waiting a few minutes with the edit task panel sitting open, I tried refreshing sprocs again and it failed again. Same pattern, long pause, "Not Responding", and then finally the popup error "Command not understood. Consider upgrading Server." (with "Send failure" in popup header bar). Below is the error from the log, everything in between the last "Job completed" entry and the next "Job started" entry:
2/3/2017 5:35:09 PM Info JobAPI->Save->Saving Jobs (45) - in shut down: False
2/3/2017 5:35:23 PM Info Task Notification completed (Failure)->'Job Success' (358293)
2/3/2017 5:35:23 PM Err Task Notification failed with error:
2/3/2017 5:35:23 PM Debug RemoveTaskProcess-> Could not find TaskProcess (358293) Task: Job Success
2/3/2017 5:36:26 PM Debug Saving output files and clearing output memory.
2/3/2017 5:36:26 PM Debug Output stored in memory: 87
2/3/2017 5:36:26 PM Debug Calling CleanUp
2/3/2017 5:36:26 PM Debug Standard Output count: 45
2/3/2017 5:36:26 PM Debug Standard Output size: 0.00
2/3/2017 5:36:26 PM Debug Standard Error count: 42
2/3/2017 5:36:26 PM Debug Standard Error size: 0.00
2/3/2017 5:36:26 PM Debug Memory usage before cleanup: 83263488
2/3/2017 5:36:26 PM Debug Log was trimmed from: 1047 to 1000
2/3/2017 5:36:26 PM Debug RemoveConnection->Enter
2/3/2017 5:36:26 PM Debug RemoveConnection->ConnClass->Before disconnect (WCF)
2/3/2017 5:36:26 PM Debug RemoveConnection->ConnClass->After disconnect (WCF)
2/3/2017 5:36:26 PM Debug RemoveConnection->Connection removed from dictionary.
2/3/2017 5:36:26 PM Debug Before sending ClientConnection (Delete)
2/3/2017 5:36:26 PM Debug RemoveConnection->Connection: uuid:c4b47b35-fddc-4fe4-9099-b9b7b7498aff;id=5 was removed
2/3/2017 5:36:26 PM Debug clsCommClientThread->Disconnected->Connection removed: uuid:c4b47b35-fddc-4fe4-9099-b9b7b7498aff;id=5
2/3/2017 5:36:26 PM Debug ConnectionManager_ConnectionRemoved->Connection removed (Server Event): uuid:c4b47b35-fddc-4fe4-9099-b9b7b7498aff;id=5
2/3/2017 5:36:26 PM Err MessageSending (ToAll) error: System.ServiceModel.CommunicationObjectAbortedException: The communication object, System.ServiceModel.Channels.ServiceChannel, cannot be used for communication because it has been Aborted.
Server stack trace:
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object ins, Object outs, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
Exception rethrown at :
at CommServer.Classes.WCF.WCFConnection.NotifyError(Exception exception)
at CommServer.Classes.WCF.WCFConnection.Send(Message message)
at VisualCronService.clsCommClientThread.NFGCOCNOLLFCIDPMBNANLIOIFJENIMMDOPCO(Byte , MessageClass , String , Boolean ) in C:\sourcefiles\code\VisualCronService\Connection\clsCommClientThread.vb:line 107