Single orchestration instance and Sequential convoy

Hi
I had read some Biztalk documents, I saw that talk about single orchestration instance and sequential convoy. But
I'm not sure with what situation use them?
1. What are scenarios use single orchestration?
2. What are scenarios use a sequential convoy?
Thanks in advance!

A single orchestration or a singleton provides you with a mechanism to control the throughput of message through the system. The behaviour of BizTalk is to trigger a thread for every message instance and when handling Message Batches, this is often not a
good thing as after debatching you land up with lots of messages, each of which trigger off an instance of the subscription.
A convoy is a more generalized pattern. If a convoy is deployed for the same message, it becomes a singleton. A convoy can be used to sequentially process different (but interlinked) messages. To take a very loose example, the entire process from order placement
to goods shipment to invoicing to payment can be implemented as a convoy with each different type of message being handled by one instance and being received from a single port. A convoy can also be used to implement the gather portion of the scatter-gather
pattern which is usefull when you want to aggregate the results of a batched processing, etc.
Regards.

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Sequential convoy issue

I have an issue with an orchestration.
I am using WCF-SQL receive adapter to poll some records. I splitted the message based on Richard Seroter’s blog (http://seroter.wordpress.com/2010/04/08/debatching-inbound-messages-from-biztalk-wcf-sql-adapter/).
Then I am trying to group the messages based on some field using sequential convoy pattern. I created a correlation set and initialized the correlation set on the first receive shape and then followed the correlation set in the second receive shape which is
in branch of a listen shape. I can see the promoted property and the value of the promoted property is exactly same for some messages.
So they are supposed to go to same orchestration. The problem is that the incoming splitted messages still activated new orchestration instances. The convoy is not working.
Any suggestions about what could be wrong?
Thanks,
David
David

It is possible that the messages are getting debatched at a speed which results in multiple messages with the same correlation pattern getting instantiated at the same time. So when BizTalk Checks for an existing subscription (for the convoy) it does not
find one and creates a new instance of the convoy.
To test this out, I'd suggest you first put in two distinct records. This should result in four distinct instances. Then you again insert records matching to two of previous and then a new one. You should see your convoy working and a new instance being
created of the new instance. If you do observe this pattern then you would be sure that the timing the messages are hitting the messagebox is causing the confusion.
What you might have to do is first implement a singleton, which will force BizTalk to process the messages sequentially and then pass it through to a convoy.
Regards.

Sequential Convoy and Long running transaction: Messages still referenced

Hi everyone<o:p></o:p>
Being a BizTalk developer since 2006, this thing still stumps me.<o:p></o:p>
I have a sequential convoy singleton orchestration that debatches messages using a rcvPipeline. The orchestration is needed in a FIFO scenario. In order to execute a rcvPipeline
within an orchestration I need to encapsulate it within an atomic transaction scope. <o:p></o:p>
In order to have an atomic scope the orchestration needs to be long running. I have also encapsulated the atomic transaction within a scope (using long running transactions) to have
exception handling.
<o:p></o:p>
Everything works fine except for one major detail:
When the orchestration executes the messages are still in the messagebox. I can even click on the orchestration instance in the MGMT console and look at the message! Tracking is disabled for the receive port as well as for the orchestration. Still, the messages
does not get cleaned up.
<o:p></o:p>
I have set my DTA-purge to 1 hour and it works fine, but the messages are still in the orchestration.<o:p></o:p>
My guess is that the long running transactions does not complete (although it looks like they should) and since the transaction is not completed the messages are not removed from
the message box.
So, to summarize: Is it possible to combine long running transactions and a singleton orchestration?
//Mikael Sand (MCTS, ICC 2011) -
Blog Logica Sweden

So after a day of looking for the solution it is quite clear that you are right in that the atomic transaction does not commit. I added a compensation block with trace info and it is never hit.
I also experimented with Isolation level on the atomic transaction and that did nothing.
Lastly I also made the sendport direct bound and also tried "specify later binding" to a physical port.
The messages are still being referenced by the orchestration! What can I do to make the atomic transation commit?
//Mikael Sand (MCTS, ICC 2011) -
Blog Logica Sweden

DEV and QA within single oracle instance

We need to have our DEV and QA in a single oracle instance. Scripts that refer to tables names in DEV will be copied over to QA for QA testing when unit testing in DEV has been completed. In DEV, we extract data from 5 source systems, one for each US state, which use the same application so the source table names are identical, and therefore in our staging area we have a schema per state such as TX, GA, MD and we extract data into staging tables that are identical to the source tables. Since we do cross state aggregation our scripts have to refer to TX.employee and GA.employee in the same sql statement.
What is the best design for this using SCHEMAS, VIRTUAL PRIVATE DATABASES, VIEWS , SYNONYMS etc?
Thanks in anticipation
Edited by: user4900730 on Mar 22, 2011 2:53 PM

user4900730 wrote:
Just for my knowledge, if I did find myself in this situation would VIRTUAL PRIVATE DATABASES make sense here?I suppose you could potentially use VPD. But that would create major problems if you ever wanted to make schema changes-- you couldn't add a new column to a table in DEV, for example, without that column also being available in QA. You couldn't have code in DEV that didn't exist in QA. I suppose you could get really fancy and use 11g's edition-based redefinition to have a dev edition and a qa edition but I'd hate to think how you'd promote code to prod in that sort of environment. Plus, editions is an enterprise feature (at least, I'm not sure if it's an extra-cost option) which would tend to be beyond the pocketbook of a company trying to save on licensing costs by combining dev & qa in a single non-VM server (let alone in the same instance).
You could potentially have your application use all dynamic SQL so that dev could use the DEV_TX schema while QA used the QA_TEX schema and it was just the TX schema in prod, but that obviously gets old really fast. You could create a single set of synonyms so that the TX_FOO synonym points to DEV_TX.FOO for the dev users and TEST_TX.FOO for the test users but then you'd have to remove the schema qualifiers from all your SQL statements.
In short, an application like you describe trying to share an instance would be a rather massive undertaking.
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Migrating cProject and cFolder into a single server instance

Hi,
Has anyone had the experience to migrate cProjects and cFolderon seperated server instances into a single server instance? How data migration can be performed assuming cProjects server will be upgraded to 4.5 and the cFolders content will be ported over? is this something do-able? Or it is easier to upgrade cFolder first and migrate the cProjects data over?
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Sequential convoy scinario ,example and steps

Hi all,
I Am trying to implement sequential convoy for my knowledge.
1-in which scenario I will use sequential convoy please give me an example(as i know that if we want to execute a process in predefined steps then we will follow sequential convoy).
2-how we will implement this in our application ? what are the steps..
Below are the steps which I am following for creating my test application
a) created 4 schema
     1-firstname schema (id,fname)
     2-lastname schema (id,lname)
     3-Property schema(id) for corelation
     4-output schema (id,fullname)
b)Orchestaion
i have created 3 message.
msgFname,msgLname,msgFullname.
in designing of orchestation
first draged a recive shape with activate ="true" and message type is "msgFname" initialize corelation here
draged a recive shape below the first recive shape with activate ="false" and message type is "msgLname" will following corelation here
will do mapping with final output msg (msgfullname).and will send final output.
while i m deploying application I m getting error
"in a sequential convoy the ports must be identical"
Please help me to overcome from this issue.
Thanks
Manoj Ruwali

Hi
Please check below few links about sequential convoy, I am sure they will be useful.
http://abdulrafaysbiztalk.wordpress.com/2009/11/07/enterprise-integration-pattern-part-5-aggregator-sequential-convoy/
http://msdn.microsoft.com/en-us/library/aa561843.aspx
http://msdn.microsoft.com/en-us/library/ms942189(v=bts.10).aspx
HTH,
Naushad Alam
When you see answers and helpful posts, please click Vote As Helpful, Propose As Answer, and/or
Mark As Answer
alamnaushad.wordpress.com
My new TechNet Wiki
"BizTalk Server: Performance Tuning & Optimization"

Single OIF instance as both SP and IdP

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I am running into errors and thought i would find out if this is even supported.
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Hi,
in a machine was removed the crs software.
I want to creata a single database instance on a single machine.
The SO is RH 5.5 and the db is 11.2.0.2.
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at oracle.ops.mgmt.has.HASContextNative.allocHASContext(Native Method)
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at oracle.ops.mgmt.has.HASContext.getInstance(HASContext.java:256)
at oracle.ops.mgmt.has.ClusterUtil.<init>(ClusterUtil.java:67)
at oracle.sysman.assistants.util.hasi.HAUtils.<init>(HAUtils.java:236)
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at oracle.sysman.assistants.util.NetworkUtils.getAllListeners(NetworkUtils.java:343)
at oracle.sysman.assistants.util.step.StepContext.<init>(StepContext.java:333)
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at oracle.sysman.assistants.dbca.ui.UIHost.<init>(UIHost.java:258)
at oracle.sysman.assistants.dbca.ui.InteractiveHost.<init>(InteractiveHost.java:54)
at oracle.sysman.assistants.dbca.Dbca.getHost(Dbca.java:164)
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at oracle.sysman.assistants.dbca.Dbca.main(Dbca.java:180)
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Edited by: Davy on Oct 25, 2010 6:08 AM

In 11gR2, you installed the grid infrastructure when you did your cluster install. This took care of CRS and ASM. Now you've removed CRS. If you're still using ASM, this would cause a problem because that still relies on the grid infrastructure.
is there more info you can provide on the steps you took to get where you are? It may be good to just reinstall the grid infrastructure before proceeding.
Dave<br>davelehr.com

Single SOA Suite Install with multiple oc4j instances and java processes

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### How is this Issue Impacting Your Business ###
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ANSWER
=======
You can create multiple domains in BPEL or create multiple systems/groups in ESB to group different projects.
MY REPLY:
=========
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Hi,
yes, on metalink you get in touch with real experts....
You have to install serveral application servers to get different ORACLE_HOMEs.
For each one, you can install a BPEL PM.
But: For each BPEL PM you need your own database instance, or you have to configure them as a clustered BPEL installation.... (but i do not know if this work with non RAC DBs)

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It a normal behavior and happens when your receive location is being triggered by messages and your service is down .The service will give a exception and you are getting suspended messages inside your BizTalk.
Better way is to have a sequential convoy working for your Scenario having delay shape .You can also have a loop shape which will be used to auto trigger the service after the delay time specified in delay shape.
Another approach is to use ping pong tool to validate the web service . What you need to do is to add the ping pong assembly in your Orchestration and send request to web service.
https://gallery.technet.microsoft.com/WebService-PingPong-f734800e
Thanks
Abhishek

Problem when handling multiple messages using sequential convoy

Hi Guys,
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Hi,
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Hi,
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Ensure that emctl is not running when you run any dcmctl commands! If you have already run any dcmctl commands with emctl running that can cause your problem - if so to fix it solution is really to re-install.

Single orchestration instance and Sequential convoy

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