Biztalk Ordered Delivery failure?

Check out this page. It explains that if you have an orchestration that follows the singleton pattern to ensure only one instance of the orchestration exists, and you make sure you set the orchestration's receive port to ordered delivery, than you should get a valid end-to-end ordered delivery scenario To provide end-to-end ordered delivery the following conditions must be met: Messages must be received with an adapter that preserves the order of the messages when submitting them to BizTalk Server. In BizTalk Server 2006, examples of such adapters are MSMQ, MQSeries, and MSMQT.In addition, HTTP or SOAP adapters can be used to submit messages in order, but in that case the HTTP or SOAP client needs to enforce the order by submitting messages one at a time You must subscribe to these messages with a send port that has the Ordered Delivery option set to True If an orchestration is used to process the messages, only a single instance of the orchestration should be used, the orchestration should be configured to use a sequential convoy, and the Ordered Delivery property of the orchestration's receive port should be set to True.

Check out this page. It explains that if you have an orchestration that follows the singleton pattern to ensure only one instance of the orchestration exists, and you make sure you set the orchestration's receive port to ordered delivery, than you should get a valid end-to-end ordered delivery scenario To provide end-to-end ordered delivery the following conditions must be met: Messages must be received with an adapter that preserves the order of the messages when submitting them to BizTalk Server. In BizTalk Server 2006, examples of such adapters are MSMQ, MQSeries, and MSMQT.In addition, HTTP or SOAP adapters can be used to submit messages in order, but in that case the HTTP or SOAP client needs to enforce the order by submitting messages one at a time.

You must subscribe to these messages with a send port that has the Ordered Delivery option set to True. If an orchestration is used to process the messages, only a single instance of the orchestration should be used, the orchestration should be configured to use a sequential convoy, and the Ordered Delivery property of the orchestration's receive port should be set to True.

We use MQSeries adapter, ordered delivery is obviously on. The problem is, setting the ordered delivery of orchestrations won't do the job, because we use different orchestrations. I'm guessing it's just impossible like this, because not every orchestration will go equally fast, that's why I need a work arround.

– WtFudgE Jan 7 '10 at 10:40 1 The different orchestrations bit certainly makes it more challenging, especially if you need ordered delivery across them, but - and its hard to be certain without knowing the details and spending some time on the design - it may still be possible if you have one orchestration picking up all requests and then coordinating the work carefully *(by starting other processes and correlating responses, before processing further requests). As with any ordered delivery implementation, you will seriously hurt throughput and latency, of course, but I'm sure you've taking this into account. – Yossi Dahan Jan 7 '10 at 11:15 The main challenge, if you can design such a process, is maintenance.

– Yossi Dahan Jan 7 '10 at 11:15 We've used the singleton pattern in orchestrations to achieve this very successfully using HTTP sneds and receives. A word of caution. There is a check box on the send port to fail if an ordered message can't be delivered.

This will stop the whole train and will do even worse things if you don't have good error handling in the orchestration. Just think about if you want the whole train to stop on a failure or if you want the bad car kicked to the ditch. – ChrisLoris Jan 7 '10 at 13:46 +1 I belive that Yossi's answer is the best solution for the problem.

Ordered delivery with sequential convoy is the classic solution here, and if you must have multiple orchestrations than you will need some sort of 'Master' orchestration that manages things. It will be extra work, but there is no out of the box pattern to do what you want. – David Hall Jan 7 '107 at 12:16.

Im currently working on the exact same problem, would like to know how you ended up solving it..

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.