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From "Kristofor Jacobson (JIRA)" <j...@apache.org>
Subject [jira] Issue Comment Edited: (AMQNET-64) occasional exception in ActiveMQ.Dispatcher.Dequeue() : millisecondsTimeout must be either non-negative and less than or equal to Int32.MaxValue or -1.
Date Fri, 26 Oct 2007 19:48:23 GMT

    [ https://issues.apache.org/activemq/browse/AMQNET-64?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_40514
] 

kjacobson edited comment on AMQNET-64 at 10/26/07 12:48 PM:
---------------------------------------------------------------------

This new test (found in the attached ConsumerTest.cs) reproduces the issue.

{code}
using System.Threading;
{code}

{code}
        [Test]
        public void TestNoTimeoutConsumer()
        {
            destinationType = DestinationType.Queue;
            // Launch a thread to perform IMessageConsumer.Receive().
            // If it doesn't fail in less than three seconds, no exception was thrown.
            Thread receiveThread = new Thread(doTestNoTimeoutConsumer);
            receiveThread.Start(Session.CreateConsumer((IQueue) Destination));
            if (receiveThread.Join(3000)) {
                Assert.Fail("IMessageConsumer.Receive() returned without blocking.  Test failed.");
            } else {
                // Kill the thread - otherwise it'll sit in Receive() until a message arrives.
                receiveThread.Interrupt();
            }
        }

        public void doTestNoTimeoutConsumer(Object parameter)
        {
            IMessageConsumer consumer = (IMessageConsumer ) parameter;
            try
            {
                consumer.Receive();
            } catch (ArgumentOutOfRangeException e) {
                // The test failed.  We will know because the timeout will expire inside TestNoTimeoutConsumer().
                Console.WriteLine("Test failed with exception: " + e.Message);
            } catch (ThreadInterruptedException e) {
                // The test succeeded!  We were still blocked when we were interrupted.
            } catch (Exception e) {
                // Some other exception occurred.
                Console.WriteLine("Test failed with exception: " + e.Message);
            }
        }
{code}

After implementing a fix to Dispatcher.cs that was basically the same as the one already posted
in the forum, the test passed.

      was (Author: kjacobson):
    This copy of ConsumerTest reproduces the issue.

After implementing a fix that was basically the same as the one already posted in the forum,
the test passed.
  
> occasional exception in ActiveMQ.Dispatcher.Dequeue() : millisecondsTimeout must be either
non-negative and less than or equal to Int32.MaxValue or -1.
> -------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: AMQNET-64
>                 URL: https://issues.apache.org/activemq/browse/AMQNET-64
>             Project: ActiveMQ .Net
>          Issue Type: Bug
>          Components: ActiveMQ Client
>         Environment: .NET 2.0, Windows 2000 Server under VMware, https://svn.apache.org/repos/asf/activemq/activemq-dotnet/trunk
@ 578465
>            Reporter: David Holroyd
>            Assignee: James Strachan
>         Attachments: ConsumerTest.cs, Dispatcher_timeout_cast-patch.diff
>
>
> I tried a lightly modified version of the example code from http://activemq.apache.org/nms/nms.html
and find that every few invocations of the test program, I see the following exception, rather
than the normal 'Received message' output:
> {noformat}
> Unhandled Exception: System.ArgumentOutOfRangeException: Number must be either non-negative
and less than or equal to Int32.MaxValue or -1.
> Parameter name: millisecondsTimeout
>    at System.Threading.WaitHandle.WaitOne(Int32 millisecondsTimeout, Boolean exitContext)
>    at ActiveMQ.Dispatcher.Dequeue(TimeSpan timeout)
>    at ActiveMQ.Dispatcher.Dequeue()
>    at ActiveMQ.MessageConsumer.Receive()
>    at Test.Bridge.Main(String[] args)
> {noformat}
> The code in question is,
> {code:title=Bridge.cs}
> namespace Test {
> 	using System;
> 	using NMS;
> 	using ActiveMQ;
> 	public class Bridge {
> 		public static void Main(string[] args) {
> 			IConnectionFactory factory = new ConnectionFactory(new Uri("tcp://192.168.9.162:61616"));
> 			using (IConnection connection = factory.CreateConnection())
> 			{
> 			    Console.WriteLine("Created a connection!");
> 			    
> 			    ISession session = connection.CreateSession();
> 			    
> 			    IDestination destination = session.GetQueue("FOO.BAR");
> 			    Console.WriteLine("Using destination: " + destination);
> 			    
> 			    // lets create a consumer and producer
> 			    IMessageConsumer consumer = session.CreateConsumer(destination);
> 			    
> 			    IMessageProducer producer = session.CreateProducer(destination);
> 			    producer.Persistent = true;
> 			    
> 			    // lets send a message
> 			    ITextMessage request = session.CreateTextMessage("Hello World!");
> 			    request.NMSCorrelationID = "abc";
> 			    request.Properties["NMSXGroupID"] = "cheese";
> 			    request.Properties["myHeader"] = "James";
> 			    
> 			    producer.Send(request);
> 			    
> 			    // lets consume a message
> 			    ITextMessage message = (ITextMessage) consumer.Receive();
> 			    if (message == null)
> 			    {
> 				Console.WriteLine("No message received!");
> 			    }
> 			    else
> 			    {
> 				Console.WriteLine("Received message with ID:   " + message.NMSMessageId);
> 				Console.WriteLine("Received message with text: " + message.Text);
> 			    }
> 			}
> 		}
> 	}
> }
> {code}
> The C# code is talking to ActiveMQ 4.1.1 running on the Linux host (I'm using NMS within
VMware).
> I'll try to nose around the code and work out what's happening, but this is the first
time I've ever worked with C#.

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