I am working on Biztalk 2013 and new to biztalk.
I am wondering if I can track if my orchestration is started or not. Can I get an error message if my orchestration is not started.
I am reading a flat file from a shared folder scheduled for particular time. if in case the shared folder does not contain file then I want to notify an error that folder is empty and orchestration is not started.
I am looking for inbuilt mechansim
Please help.
What you would need to do is implement a watcher Orchestration pattern that subscribes to at least one message from the file you are receiving. For example, the first if you are debatching.
The watcher would basically be a Sequential Convoy that does no real processing.
You would set the Delay Shape to the maximum time to wait for a following file. If the Delay fires, you can send an alert, e-mail, Event Log, etc.
You could create a BAM tracking profile and have it send out an alert of if no files were received for a certain period from that port.
Related
Some resumable messages were terminated today by mistake. Is there a way to retrieve them?
Maybe, if the messages were being Tracked for some reason.
You should still see the Terminated Instances on the Terminated list in the Group Hub. If the messages were set for Tracking, you would be able to retrieve them there.
If not, your only option would be to restore the databases to a point before Terminate was issued.
I'm not sure if I'm doing this right.
Our orchestration looks like this:
ReceiveOrder
TryScope (Long Running)
AcknowledgementScope (Atomic)
ConstructOrderAckMessage
TransformOrderToAck (using a map)
SendOrderAckToMessageQueue
AtomicWebServiceScope
ImportOrderToDBExpression
Construct and send message to another process
CatchException
ConstructErrorExpression
HandleExceptionStartOrchestration
When we tested this with about 6000 orders, we noticed that all of them resulted in an acknowledgment message (SendOrderAckToMessageQueue). The acknowledgment is a simple XML based on a schema provided by the crew that sends the order to this orchestration.
However, not all of them got imported into the database (ImportOrderToDBExpression) (about 45). In fact, there are no errors or failures or suspended instances of any kind. There's nothing unusual about the orders that did not get imported. If it failed, it did so silently.
Please note, that the AcknowledgementScope portion is something added recently; prior to that all the orders got imported successfully.
Is this because I have the Scope set incorrectly in this orchestration? Where else could the problem be? Is there a better way to send acknowledgment in a fool proof way? Thanks for any advice.
You don't mention any Catch Blocks. Do you have Catch Blocks on all your Scopes?
If there is an Exception without a Catch Block or a Catch Block that does not log the Exception, it will appear to silently fail.
Yes, the main thing you are doing wrong is calling an external DLL to insert records into a database.
Unless that DLL is very well written to be multi-threading capable including limiting the number of concurrent connections and has good retry and error handling capabilities then it can encounter an error and silently fail.
Even if you do have errors being logged in the DLL to the Event Log, you then have to give permissions for the Application name that the DLL uses to write to the event logs, otherwise the DLL will fail in it's catch blocks trying to write to the event log.
What you should be doing is using a Send Port with the appropriate Adapter to send records to the database.
Also there are very few situations in which you need an atomic scope. With an atomic scope it is up to the developer to implement any rollback. Also you probably do not need a long running scope unless you expect your Orchestration to take a long while and that is should dehydrate while waiting for a response.
Sending the Acknowledgement after the BizTalk Orchestration has received the message is fine, as long as you can then somehow resume a failed message in BizTalk, so you need to have some sort of retry mechanism.
We have a solution that receives HIPAA X12 files using the Multiple schema, then splits them and sends them on to the orchestration. Occasionally the client will send a file with a structural error somewhere in the middle, and the message will be suspended, but only after it's already send a few of the sub-documents on to the orchestration. This is annoying...
What I'd like to do is validate the entire message and suspend it before disassembling it into multiple messages... I know I could do this if I switched to the Single schema, or set Preserve Interchange, but then I have to deal with the splitting somewhere else.
Suggestions? Thanks.
Check the Them->You tab of the Agreement under Local Host Settings.
The default option for Inbound batch processing option is to "suspend Transaction Sets (ST/SE) on error."
Change to "suspend Interchange on Error" and test to see if that satisfies your requirement.
That should work unless the Trading Partner sends files with multiple Interchanges.
I have a receive location in my BizTalk 2010 project, and sometimes that receive location will receive an empty file. The receive pipeline is PassThruReceive. We then have a Send Port that has a filter for that Receive Port Name. So all we are doing is moving the file from the receive location to the send location.
The issue that I'm running into is that in the event that we get an empty file in the receive location, my client wants the file to still be moved to the send port. I know that out of the box, the FILE adapter discards empty files and writes an event to the Event Log stating that it was deleted.
I have followed articles that show a custom FILE adapter accomplishing this task. I have had some success with this custom adapter. The file is picked up. Received by BizTalk and the Send Port successfully sends the file. However, even with this solution, I'm running into an issue in the receive side where the file is locked and cannot be deleted. I have followed various articles on this subject, and I get the same issue every time where the file is locked and can not be deleted.
My question is. Even though batchMessage.Message.BodyPart.Data.Close(); is being called, the stream is still locked. Is there any way for me to find where else BizTalk may be locking the file? Is there any other way of handling this?
One of the articles that I followed is located here: http://biztalkwithshashikant.blogspot.com/2011/04/processing-empty-files-in-biztalk.html
It seems to me that you are running into issues when running your custom FILE adapter multi-server. I bet you are running more than 1 server in the BizTalk Group?
I haven't done this myself, but I heard that getting an adapter to run smoothly multi-server is one of the hardest things to do in BizTalk. The trick is to find a way to be able to share the load between multiple instances of the same BizTalk host.
Do you still have the same problem when running the instance only on 1 server instead of 2?
in the custom pipeline component code method:
IBaseMessage Execute(IPipelineContext pContext, IBaseMessage pInMsg)
You should return pInMsg, not set to null, and the .BodyPart stream positioned at the end. If pInMsg is null BizTalk will discard the message silently. You don't need to close it but you do need to move it to the end to let BizTalk know you read and processed it all.
A way around this is to use the FTP adapter instead to pick up the files, the FTP adapter does not discard empty files.
It is quite possible that to system creating the files, it is still a file location, but also accessible via FTP.
Here is my scenario. BizTalk needs to transfer a file from a shared/central document library. First BizTalk receives an incoming message with a reference/path to this document in the library. Then it simply needs to read it out from this library and send it (potentially through different adapters). This is in essence, a scenario not so remote from the ClaimCheck EAI pattern.
Some ways to implement a claim check have been documented, noticeably BizTalk ESB Toolkit Claim Check, and BizTalk 2009: Dealing with Extremely Large Messages, Part I & Part II. These implementations do however take the assumption that the send pipeline can immediately read the stream that has been “checked in.”
That is not my case: the document will take some time before it is available in the shared library, and I cannot delay the initial received message. That leaves me with 2 options: either introduce some delay via an orchestration or ensure the send port will later on retry if the document is not there yet.
(A delay can only be introduced via an orchestration, there is no time-based subscriptions in BizTalk. Right?)
Since this a message-only flow I’d figure I could skip the orchestration. I have seen ways on how to have "Custom Retry Logic in Message Only Solution Using Pipeline" but what I need is not only a way to control the retry behavior (as performed by the adapter) but also to enforce it right from within the pipeline…
Every attempt I made so far just ended up with a suspended message that won’t be automatically retried even though the send adapter had retry configured… If this is indeed possible, then where/what should I do?
Oh right… and there is queuing… but unfortunately neither on premises nor in the cloud ;)
OK I may be pushing the limits… but just out of curiosity…
Many thanks for your help and suggestions!
I'm puzzled as to how this could be done without an Orch. The only way I can think of would be along the lines of:
The receive port for the initial messages just 'eats' the messages,
e.g. subscribing these messages to a dummy Send port with the Null Adapter,
ignoring them totally.
You monitor the Shared document library with a receive port, looking for any ? any new? document there.
Any located documents are subscribed by a send port and sent downstream.
An orchestration based approach would be along the lines of:
Orch is triggered by a receive of the Initial notification of an 'upcoming' new file to the library. If your initial notification is request response (e.g. exposed web service, you can immediately and synchronously issue the response)
Another receive port is used to do the monitoring of availability and retrieval of the file from shared library, correlating to the original notification message (e.g. by filename, or other key)
A mechanism to handle the retry if the document isn't available, and potentially an eventual timeout, e.g. if the document never makes it to the shared library.
And on success, a send port to then send the document downstream
Placing the delay shape in the Orch will offer more scalability than e.g. using Thread.Sleep() or similar in custom adapter or pipeline code, since BTS just calculates ad stamps the 'awaken' timestamp on the SQL record and can then dehydrate the orch, freeing up the thread.
The 'is the file there yet?' check can be done with a retry loop, delaying after each failed check, with a parallel branch with a timeout e.g. after an hour or so.
The polling interval can be controlled in the receive location, so I do not understand what you mean by there is no time based subscriptions in Biztalk. You also have a schedule window.
One way to introduce delay is to send that initial message to an internal webservice, which will simply post back the message to Biztalk after a specified time interval.
There are also loopback adapters, which simply post the message back into the messagebox. This can be ammended to add a delay.