Connecting To A Private Remote MSMQ Queue

Question

I'm trying to connect to a remote private MSMQ queue using the path:

"FormatName:DIRECT=OS:remoteMachineName\Private$\MyQueue"

and I'm getting the following error:

"The specified format name does not support the requested operation. For example, a direct queue format name cannot be deleted."

I'm obviously doing something wrong. However this does work using a local queue.

I'm using Spring.Net's Messaging. Here's my config

<objects xmlns="http://www.springframework.net"&gt;
 <object id="myQueue" type="Spring.Messaging.Support.MessageQueueFactoryObject, Spring.Messaging">
  <property name="Path" value="FormatName:DIRECT=OS:remoteMachineName\Private$\MyQueue"/>
 </object>

 <object id="messageQueueTemplate" type="Spring.Messaging.Core.MessageQueueTemplate, Spring.Messaging">
  <property name="DefaultMessageQueueObjectName" value="myQueue"/>
 </object>

 <object id="messageGateway" type="My.MessageGateway, My.Assembly">
  <property name="MessageQueueTemplate" ref="messageQueueTemplate"/>
 </object>
</objects>

Answer 1

Is it even possible to connect remotely to a private queue? I thought that's what public queues were for. I could totally be missing something - I've only used private queues locally using WCF - definitely worth looking into WCF if this is a .NET project, as it hides alot of the MSMQ goo.

Here's info on public vs private queues: http://msdn.microsoft.com/en-us/library/ms706878(VS.85).aspx

Answer 2

Is this a transactional queue? Remote read from transactional queue is not possible. Maybe the spring framework try to check if this a transactional queue, and this is also an operation that is supported only on local queue.

The recommanded why to work with queues is to write to remote queue and read from local queue. In msmq 4.0 ( vista and windows 2008 ) remote transactional read is supported ( so I have heard).

Can you debbug the spring.net code and see the exact code when the process fail?

Answer 3

not true. http://infosysblogs.com/microsoft/2007/02/msmq_sending_message_to_remote.html

Answer 4

the first thing striking my eyes is the casing of your endpoint address. At least all other examples posted in this thread or here use different casing. Second you are not escaping the backslashes within the string. Instead of

"FormatName:DIRECT=OS:remoteMachineName\Private$\MyQueue"

try

"FormatName:Direct=OS:remoteMachineName\\private$\\MyQueue"

hth, Erich

Answer 5

The Microsoft Help documents state that private queues are only "available" from the local computer:

Public queues are replicated throughout the Message Queuing network and can potentially be accessed by all of the sites connected by the network.

Private queues are not published across the entire network. Instead they are available only on the local computer that contains them. Private queues can be accessed only by applications that know the full path name or label of the queue.

(from: http://msdn.microsoft.com/en-us/library/19ww660c(VS.71).aspx).

This is all a bit ambiguous really!

Another post on Stack Overflow references this article:

http://technet.microsoft.com/ja-jp/library/cc753440(WS.10).aspx

Which has a much more useful description of Public vs Private queues.