Workflow Stops without error in background task statusready

Wed Mar 8 13:04:44 EST 2006

Hello All,
We are experiencing this same problem in our ITG and FQA environments as we are preparing to upgrade our Production to ECC 5.0.  We did not experience this type of hang up in the previous 4.6C (yes we are jumping 2 versions).  I have been following the string and checking all suggestions... Our wf-batch id is not locked, and our swu3 customization is fine (including RFC and all background jobs).  Our current instance of this has been hung for 2 hours, the flow is in a subflow of all background tasks and the first fork of 9 steps has completed, but the subflow has not moved on to the next fork of 6 similar tasks.  We cannot recreate the problem as it seems to be sporadic.... Some flows complete smoothly and other instances of the same flow will hang.  
Many Thanks,
Sherie

Sherie Munday
Workflow Developer/Analyst
Air Products & Chemicals, Inc. 

-----Original Message-----
From: sap-wug-bounces at mit.edu [mailto:sap-wug-bounces at mit.edu] On Behalf Of NICKLAS, Christian
Sent: Wednesday, March 08, 2006 11:24 AM
To: SAP Workflow Users' Group
Subject: AW: Workflow Stops without error in background task statusready

Hi All,

the error sometimes also occurs at the beginning of the process at the first background task - no parallel branch exists at this moment and no update is done in background!

Any ideas are welcome.
Thanks in advance

Christian 

-----Ursprüngliche Nachricht-----
Von: sap-wug-bounces at mit.edu [mailto:sap-wug-bounces at mit.edu] Im Auftrag von NICKLAS, Christian
Gesendet: Mittwoch, 8. März 2006 17:13
An: SAP Workflow Users' Group
Betreff: AW: Workflow Stops without error in background task statusready

HI Mike,
Hi All

yes there are some simultaneous forks in Definition. One in the main flow, and two in each subflows. After the deletion of the forks still the same problem.

But the lock can be the reason. In a dialog task I make at the end an update on a czustom-table. In the next task a background step updates the same database.
Can this be the program? Commit work is not set in the dialog or background task

Regards

Christian Nicklas 

-----Ursprüngliche Nachricht-----
Von: sap-wug-bounces at mit.edu [mailto:sap-wug-bounces at mit.edu] Im Auftrag von Mike Pokraka
Gesendet: Mittwoch, 8. März 2006 14:45
An: SAP Workflow Users' Group
Betreff: Re: Workflow Stops without error in background task statusready

Uh, hold on. You say RSWERRE restarts it. So in other words they SHOULD all restart themselves after a while (20 minutes)...  yes?

In that case might it be some kind of locking conflict? - pick your process apart for simultaneous forks or DB updates which might still be active or other similar things.
How is RSWERRE scheduled (SWWD)?

Failing that, OSS.

Cheers,
Mike

NICKLAS, Christian wrote:
> Hi all
> Hi Mike,
>
> that would be to easy ;-).
> It is a background task and background method - in SWI2_ADM1 there is 
> not entry. But ii SWIA it can be processed!
>
> So it is becoming more and more strange and that is the reason why I 
> cannot find a solution?
>
> But maybe I am on the correct way with report RSWWERRE? When I start 
> the report manually after 10 minutes when the workitem was created, 
> the flow continues.
>
> Anybody any ideas what the problem could be?
>
> Regards
>
>
> Christian Nicklas | Prof. Services SAP Workflow SER Solutions 
> Deutschland GmbH
>
>
> -----Ursprüngliche Nachricht-----
> Von: sap-wug-bounces at mit.edu [mailto:sap-wug-bounces at mit.edu] Im 
> Auftrag von Mike Pokraka
> Gesendet: Mittwoch, 8. März 2006 13:32
> An: SAP Workflow Users' Group
> Betreff: Re: AW: AW: Workflow Stops without error in background task 
> status ready
>
> Duh, must read posts more carefully. You mentioned SWIA before. That 
> makes the answer simple: it's not a background task.
>
> A task in READY status won't show an agent, as it can be with many people.
> Once someone executes it and changes status to STARTED, it will show 
> an agent.
>
> Check your agent assignments on the task. Check if they show up in
> SWI2_ADM1 (tasks without agents), would indicate it's being routed to 
> the wrong people / not a possible agent of the task.
>
> Note, a background task can be 'dialog' even though there isn't any 
> user interaction. What it means is that - with 'advance in dialog' set 
> - it executes under the userID of the previous task as opposed to WF-BATCH.
> This can be for authorization reasons or simply that you want the 
> 'last changed by' to reflect the user who made a decision.
>
> Cheers,
> Mike
>
> NICKLAS, Christian wrote:
>> Hi Mike,
>>
>> In SM13 and SM21 no entries are available.
>> After setting the WI into status error I get no hits in SWI2_DIAG to 
>> restart the process (when I set the whole WF into error I get a hit 
>> but not possible to restart the flow) Only thing what works is in 
>> transaction SWIA to execute without agent check (also here no agent 
>> is displayed in the column!)
>>
>> Regards
>> Christian
>>
>> Christian Nicklas | Prof. Services SAP Workflow SER Solutions 
>> Deutschland GmbH
>>
>>
>> -----Ursprüngliche Nachricht-----
>> Von: sap-wug-bounces at mit.edu [mailto:sap-wug-bounces at mit.edu] Im 
>> Auftrag von Mike Pokraka
>> Gesendet: Mittwoch, 8. März 2006 12:31
>> An: SAP Workflow Users' Group
>> Betreff: Re: AW: Workflow Stops without error in background task 
>> status ready
>>
>> Duh, ignore me, must read posts more carefully. You said there aren't 
>> any conditions.
>> Can you restart them as described? If so it would point towards a 
>> basisy problem. Else you can also check for update failures - SM13. 
>> System log
>> SM21 may also reveal some hints. Check around the time the task is 
>> created.
>>
>> Cheers,
>> Mike
>>
>> Mike Pokraka wrote:
>>> What about the conditions? SWI1_COND implies you have a condition on 
>>> the task. That does exactly what you describe - task won't start 
>>> until the condition is met.
>>>
>>> NICKLAS, Christian wrote:
>>>> Hi Mike
>>>>
>>>> thanks fort he hint. In SM58 everything is fine. For this 
>>>> background tasks no conditions are maintained. The SWU3 looks good 
>>>> for the runtime-environment.
>>>> But for me it seems that something is wrong with the runtime, 
>>>> because it happens very often that the Background-WI's stop in 
>>>> status ready.
>>>>
>>>> Regards
>>>> Christian
>>>>
>>>>
>>>>
>>>> -----Ursprüngliche Nachricht-----
>>>> Von: sap-wug-bounces at mit.edu [mailto:sap-wug-bounces at mit.edu] Im 
>>>> Auftrag von Mike Pokraka
>>>> Gesendet: Mittwoch, 8. März 2006 11:23
>>>> An: SAP Workflow Users' Group
>>>> Betreff: Re: Workflow Stops without error in background task status 
>>>> ready
>>>>
>>>> Hallo Christian,
>>>> Background tasks do not have agents, so what you are seeing in 
>>>> SWI1_COND is correct. Interesting you mention SWI1_COND - have you 
>>>> set a condition for the task? Is it fulfilled?
>>>> Conditional tasks are evaluated/executed by a background job, make 
>>>> sure it's scheduled and running.
>>>>
>>>> Also, have a look in SM58 for any problems.
>>>> Something else to try is set the task to error using SE37, FM 
>>>> SWW_WI_STATUS_CHANGE_NEW (I think... something like that), and try 
>>>> restart with SWI2_DIAG.
>>>>
>>>> MfG,
>>>> Mike
>>>>
>>>> NICKLAS, Christian wrote:
>>>>> Hi all,
>>>>>
>>>>>
>>>>>
>>>>> I have implemented a workflow running on ERP-Release ECC 5.0 
>>>>> (SAP_BASIS 640; Patch Level 0009; SAPKB64009; SAP Basis 
>>>>> Component).
>>>>>
>>>>> When testing the solution sometimes the workflow stops without any 
>>>>> error in background tasks. This happens in different background 
>>>>> tasks from time to time and in other runs it works.
>>>>>
>>>>> At the workflow log the status of the background task is in status 
>>>>> ready. The information at the task says "Execution will continue 
>>>>> in background" (Message no. SWF_RUN609).
>>>>>
>>>>> There is no error in the log. In ST22 no dump exists. Also the 
>>>>> administrative tasks (SWPR - Restart after error / SWPC - Restart 
>>>>> after
>>>>> SystemCrash) are not possible. SWU_OBUF also does not work.
>>>>>
>>>>>
>>>>>
>>>>> The only thing which I found was in transaction SWI1_COND. For the 
>>>>> task there is no agent available in the agent column (should be 
>>>>> workflow-system)?
>>>>>
>>>>> When I process and reactivate the workitem in transaction SWIA the 
>>>>> flow goes on. (WF_BATCH has SAP_ALL / SAP_NEW)
>>>>>
>>>>>
>>>>>
>>>>> Any ideas and help are appreciated.
>>>>>
>>>>>
>>>>>
>>>>> Christian Nicklas | Prof. Services SAP Workflow SER Solutions 
>>>>> Deutschland GmbH
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> SAP-WUG mailing list
>>>>> SAP-WUG at mit.edu
>>>>> http://mailman.mit.edu/mailman/listinfo/sap-wug
>>>>>
>>>>
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