I just wrote a sample test application that duplicates my problem. It is a quick-n-dirty windows form app that starts up 10 RemoteThread GThreads and adds them to the GApplication, and starts it.
The RemoteThread thread throws a CustomException only if its tracking number is 5. So ony 1 in 10 of the threads throws the exception. Both RemoteThread and CustomException are in their own DLL, RemoteThreadLib.dll that is separate from the main windows forms app.
Here's the code I'm using to create and start the GApplication:
GConnection conn = new GConnection(
txtHost.Text,
Int32.Parse(txtPort.Text),
txtUsername.Text,
txtPassword.Text);
GApplication app = new GApplication(conn);
app.Manifest.Add(new ModuleDependency(typeof(RemoteThread).Module));
for (int i = 1; i < 10; i++)
{
app.Threads.Add(new RemoteThread(i));
}
app.ThreadFinish += new GThreadFinish(OnThreadFinish);
app.ThreadFailed += new GThreadFailed(OnThreadFailed);
app.ApplicationFinish += new GApplicationFinish(OnApplicationFinish);
app.Start();
When I run this, I get a SerializationException, like what i was describing before.
The thread (TrckingNumber = 5) failed with exception message: System.Runtime.Serialization.SerializationException : Type is not resolved for member 'RemoteThreadLib.CustomException,RemoteThreadLib, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'.
at Alchemi.Executor.AppDomainExecutor.ExecuteThread (Byte[] thread)
at Alchemi.Executor.GExecutor.ExecuteThreadInAppDomain()
So it sounds like there is a problem discovering where the CustomException type is defined (in what DLL). So I copied the RemoteThreadLib.dll onto the manager (C:\Program Files\Alchemi\Manager\) and ran it again. No change, so the problem is not with the manager.
Then I copied RemoteThreadLib.dll onto each Executor (yeah it was a pain) into C:\Program Files\Alchemi\Executor\ and ran it again. This time it worked! The exception instead says:
The thread (TrackingNumber = 5) failed with exception message: RemoteThreadLib.CustomException: The TrackingNumber is 5!
at RemoteThreadLib.RemoteThread.Start()
at Alchemi.Executor.AppDomainExecutor.ExecuteThread (Byte[] thread)
at Alchemi.Executor.AppDomainExecutor.ExecuteThread(Byte[] thread)
at Alchemi.Executor.GExecutor.ExecuteThreadInAppDomain()
This is what I wanted to happen.
So, it appears that when Alchemi throws exceptions, it does not look at the modules that are loaded into memory (serialized over from the manager) as part of the GApplication's manifest. It only looks on disk to resolve the type.
Is this a bug? Or am I doing something wrong here.
I can zip up my sample project if anyone wants to try it out and see what I'm talking about. Email me if you want it.
Any help would be greatly appreciated. I've been beating my head against a wall with this because my engineering simulations will run for about 3 hours and then crash because of this -- it's pretty hard to debug something that only happens every 3-4 hours!
Anyway, thanks again, hope that some good can come of this.
-Matt
On 11/7/06, Jonathan Mitchem <
[EMAIL PROTECTED]> wrote:
I'll take a look at this tonight and get back to you.
JonathanOn 11/7/06, Matt Valerio < [EMAIL PROTECTED] > wrote:Hmm. I think so? I don't explicitly say that my exception implements ISerializable, but it derives from Exception which does. I do override GetObjectData.
Here's the code for my TaskNotCompletedException class:
[Serializable]
public class TaskNotCompletedException : Exception
{
#region Constructors
public TaskNotCompletedException()
: base()
{
}
public TaskNotCompletedException(string taskName)
: base()
{
this.TaskName = taskName;
}
public TaskNotCompletedException(string taskName, string message)
: base(message)
{
this.TaskName = taskName;
}
public TaskNotCompletedException(string taskName, string message, Exception innerException)
: base(message, innerException)
{
this.TaskName = taskName;
}
public TaskNotCompletedException(SerializationInfo info, StreamingContext context)
: base(info, context)
{
this.TaskName = info.GetString("TaskName");
}
#endregion
#region Property - TaskName
private string m_TaskName = "";
public string TaskName
{
get
{
return this.m_TaskName;
}
set
{
this.m_TaskName = value;
}
}
#endregion
public override void GetObjectData(SerializationInfo info, StreamingContext context)
{
base.GetObjectData(info, context);
info.AddValue("TaskName", this.TaskName);
}
public override string Message
{
get
{
String s = base.Message;
s += Environment.NewLine;
s += "TaskName: " + this.TaskName;
return s;
}
}
}
Am I still doing something wrong?
Thanks for your help,
-MattOn 11/7/06, Jonathan Mitchem <[EMAIL PROTECTED]> wrote:>From what it looks like to me, the exception is being thrown in the Executor whenever the thread is Start()ed.
You didn't mention it, but do you implement ISerializable?
JonathanOn 11/4/06, Matt Valerio <[EMAIL PROTECTED]> wrote:Has anyone else run into a problem like this?-------------------------------------------------------------------------
System.Runtime.Serialization.SerializationException: Type is not resolved for member ' Fsda.Tasks.TaskNotCompletedException,FSDA_Driver, Version=0.3.0.1, Culture=neutral, PublicKeyToken=null'.
at Alchemi.Executor.AppDomainExecutor.ExecuteThread(Byte[] thread)
at Alchemi.Executor.GExecutor.ExecuteThreadInAppDomain ()
Apparently there is an exception (TaskNotCompletedException, a custom exception that I wrote) that gets thrown from within my (class inherited from) GThread.
My TaskNotCompletedException is written correctly( I think), because it:
1) inherits from Exception
2) is marked as [Serializable]
3) provides all the same constructors as Exception, including the one with SerializationContext and SerializationInfo parameters
4) overrides GetObjectData
Did I miss something?
How can you find out on which computer the exception is being thrown (executor, manager, or client)?
Or is this SerializationException being thrown for another reason....
Any help would be greatly appreciated.
Thanks,
-Matt
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