[Fwd: Fwd: Re: Error WL 864: Background job SWWDHEX cannot be scheduled (err or 6)]
Michael Pokraka
workflow at quirky.me.uk
Mon Jul 14 06:14:31 EDT 2003
Hi,
I think Kjetil has my mail mixed up with yours. We have hundreds of deadlines,
and I have actually changed it to use periodic monitoring (to great benefit).
The learning curve for me was that the job frequency is NOT even remotely
accurate as an indicator for the amount of deadlines, table SWWWIDH is quite
useful to look at though - you may be surprised.
Thanks Kjetil for your input in any case - it was spot on.
Cheers
Mike
On Mon, Jul 14, 2003 at 11:19:43AM +0200, Kouw, FA - SPLTX wrote:
> Hello Kjetil,
>
> We do NOT have hundreds of deadlines each day (as I explained in my mail). So I think it's best to use non-scheduled deadline monitoring. Do you
> agree?
>
> Regards,
>
> Fred
>
> Kjetil Kilhavn wrote:
>
> > You say you have hundreds of deadlines each day. If I were you I would set
> > up automatic rescheduling somewhere between three minutes (maximum of 480
> > jobs per day) and ten minutes (maximum of 144 jobs per day). Since the job
> > will reschedule itself after it has finished you will never have two
> > instances running unless you set it up twice yourself.
> >
> > Kjetil Kilhavn
> >
> > "Kouw, FA - SPLTX"
> > <fa.kouw at td.klm.com> To: SAP-WUG at MITVMA.MIT.EDU
> > Sent by: SAP cc: (bcc: Kjetil Kilhavn)
> > Workflow Subject: [Fwd: Fwd: Re: Error WL 864: Background job SWWDHEX cannot be scheduled (err or 6)]
> > <Owner-SAP-WUG at MITVM
> > A.MIT.EDU>
> >
> > 11.07.2003 16:37
> > Please respond to
> > "SAP Workflow Users'
> > Group"
> >
> > Mike, Jocelyn,
> >
> > First of all, thanks for your input. I've not been able to respond due
> > to workload... I changed my e-mail adress so I'll have the opportunity
> > to view the postings more frequently.
> >
> > We are also on 4.6C, one client on the production system and the job is
> > scheduled 'as needed' (when a workitem with a deadline is created). We
> > do not have many workflows/workitems in which the deadlines are set, so
> > I think I should keep this as is.
> >
> > The problem didn't occur since I reported it on this maillist. If it
> > does I'll use your advise to (try to) solve it.
> >
> > Regards and thanks again,
> >
> > Fred Kouw
> >
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> > ----- Message from "Fred Lunaspa" <fredlunaspa at hotmail.com> on Fri, 11 Jul
> > 2003 16:29:27 +0200 -----
> >
> > To: fa.kouw at td.klm.com
> >
> > Subject: Fwd: Re: Error WL 864: Background job SWWDHEX cannot be
> > scheduled (err or 6)
> >
> > >From: "Dart, Jocelyn" <jocelyn.dart at sap.com>
> > >Reply-To: SAP Workflow Users' Group <SAP-WUG at MITVMA.MIT.EDU>
> > >To: SAP-WUG at MITVMA.MIT.EDU
> > >Subject: Re: Error WL 864: Background job SWWDHEX cannot be scheduled (err
> > >or 6)
> > >Date: Thu, 3 Jul 2003 09:14:16 +0200
> > >
> > >Yes ok Mike,
> > >The problem under individual-case monitoring the job is scheduled every
> > >time a work item with a deadline set on it is created - not just when
> > >deadlines are exceeded. So while your job will be rescheduled,
> > essentially
> > >you are just filling up your batch queue with redundant jobs. Your users
> > >may not notice until the batch queue gets clogged but your system
> > >administrators might not be so blasi.
> > >
> > >So the when you calculate the deadlines per minute - do it on the basis of
> > >the number of work items being created with deadline times set on them,
> > not
> > >on the number of work items with deadlines exceeded.
> > >
> > >Regards,
> > > Jocelyn Dart
> > >Consultant (SRM, EBP, Workflow)
> > >and co-author of the book
> > >"Practical Workflow for SAP"
> > >SAP Australia
> > >email: jocelyn.dart at sap.com
> > >phone: +61 412 390 267
> > >fax: +61 2 9935 4880
> > >
> > >
> > >
> > >
> > >-----Original Message-----
> > >From: Michael Pokraka [mailto:workflow at quirky.me.uk]
> > >Sent: Wednesday,2 July 2003 5:52 PM
> > >To: SAP-WUG at MITVMA.MIT.EDU
> > >Subject: Re: Error WL 864: Background job SWWDHEX cannot be scheduled (err
> > >or 6)
> > >
> > >
> > >Hi Jocelyn,
> > >Agreed, I also discovered something else: I used to use SM37 to see how
> > >often it runs - this is where I got my 20 times/day from.
> > >However I've since discovered at this site (4.6c) that there are hundreds
> > >of deadlines each day, and the job just keeps falling over but usually
> > gets
> > >rescheduled when a new deadline is created... thus nobody notices the
> > >problem, and I see no reason to schedule it regularly :)
> > >I'll change it to run scheduled and see if the problem goes away.
> > >
> > >Incidentally, the SAP docs recommend to "Only select permanent deadline
> > >monitoring if there are several deadlines to be monitored per minute."
> > >
> > >Thanks for your input,
> > >Cheers
> > >Mike
> > >
> > >On Tue, Jul 01, 2003 at 02:18:46AM +0200, Dart, Jocelyn wrote:
> > > > Hi Mike,
> > > > I don't think I'd make that assumption about "safeguarding against
> > >self-duplication" I doubt if the mechanism is that sophisticated as it was
> > >developed a while ago. The running on an "as-needed" basis sounds to me
> > >like a problem - in production it should really be running in periodic
> > mode
> > >not in individual case mode. Try chaning your config for deadline
> > >monitoring.
> > > > Regards,
> > > > Jocelyn Dart
> > > > Consultant (SRM, EBP, Workflow)
> > > > and co-author of the book
> > > > "Practical Workflow for SAP"
> > > > SAP Australia
> > > > email: jocelyn.dart at sap.com
> > > > phone: +61 412 390 267
> > > > fax: +61 2 9935 4880
> > > >
> > > >
> > > >
> > > >
> > > > -----Original Message-----
> > > > From: Michael Pokraka [mailto:workflow at quirky.me.uk]
> > > > Sent: Monday,30 June 2003 10:41 PM
> > > > To: SAP-WUG at MITVMA.MIT.EDU
> > > > Subject: Re: Error WL 864: Background job SWWDHEX cannot be scheduled
> > >(err or 6)
> > > >
> > > >
> > > > Hi Jocelyn,
> > > > The job runs on an as needed basis, currently it schedules itself
> > around
> > >20 times/day. I would imagine it should have safeguards against
> > >'self-duplication' - even if it only runs twice a day, it can still happen
> > >concurrently.
> > > >
> > > > Hold that thought, I've finally found relating entries in the system
> > >log:
> > > > EGZ BP_JOB_MODIFY: Job cannot be modified. Reason:
> > > > EGE > Job SWWDHEX is not in table TBTCO
> > > > EGC > Job SWWDHEX is currently locked
> > > > EGC > Job SWWDHEX is currently locked
> > > > EGC > Job SWWDHEX is currently locked
> > > >
> > > > Fred - I've also found an OSS note 69470 which deals with a concurrency
> > >issue between SWWDHEX and SAP_REORG_JOBS. In our case however the error
> > >happened at 8:30 and SAP_REORG_JOBS ran at 0:30. Back to the drawing
> > board.
> > > >
> > > > Cheers
> > > > Mike
> > > >
> > > > On Mon, Jun 30, 2003 at 06:54:37AM +0200, Dart, Jocelyn wrote:
> > > > > Mike, Have you checked the timings? Might be a time overlap issue if
> > a
> > >previously scheduled job is still active when you try to schedule the job
> > >again. You might need to adjust the job frequency.
> > > > > Regards,
> > > > > Jocelyn Dart
> > > > > Consultant (SRM, EBP, Workflow)
> > > > > and co-author of the book
> > > > > "Practical Workflow for SAP"
> > > > > SAP Australia
> > > > > email: jocelyn.dart at sap.com
> > > > > phone: +61 412 390 267
> > > > > fax: +61 2 9935 4880
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > -----Original Message-----
> > > > > From: Michael Pokraka [mailto:workflow at quirky.me.uk]
> > > > > Sent: Friday,27 June 2003 8:21 PM
> > > > > To: SAP-WUG at MITVMA.MIT.EDU
> > > > > Subject: Re: Error WL 864: Background job SWWDHEX cannot be scheduled
> > >(err or 6)
> > > > >
> > > > >
> > > > > FWIW, I'm also trying to track down the same error, single production
> > >client, happens once or twice a week - seemingly at random.
> > > > > I'll post if I find any answer.
> > > > > Cheers
> > > > > Mike
> > > > >
> > > > > On Fri, Jun 27, 2003 at 01:32:20AM +0200, Dart, Jocelyn wrote:
> > > > > > Hi Fred,
> > > > > > You wouldn't happen to be running workflow in multiple clients of
> > >that same system would you?
> > > > > > I've had this message when you try to schedule the job in one
> > client
> > >when its already been scheduled
> > > > > > in another client.
> > > > > > In which case the answer is to create your own job for each client,
> > >e.g. SWWERRExxx where xxx is the client number.
> > > > > > Regards,
> > > > > > Jocelyn Dart
> > > > > > Consultant (SRM, EBP, Workflow)
> > > > > > and co-author of the book
> > > > > > "Practical Workflow for SAP"
> > > > > > SAP Australia
> > > > > > email: jocelyn.dart at sap.com
> > > > > > phone: +61 412 390 267
> > > > > > fax: +61 2 9935 4880
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > -----Original Message-----
> > > > > > From: Fred Lunaspa [mailto:fredlunaspa at hotmail.com]
> > > > > > Sent: Friday,27 June 2003 12:57 AM
> > > > > > To: SAP-WUG at MITVMA.MIT.EDU
> > > > > > Subject: Re: Error WL 864: Background job SWWDHEX cannot be
> > >scheduled (error 6)
> > > > > >
> > > > > >
> > > > > > Thanks Namit !
> > > > > >
> > > > > > I rescheduled the background job (program RSWWDHEX) and restarted
> > >the
> > > > > > workflow (SWPR). All works well now. I've no idea why the job
> > >couldn't be
> > > > > > scheduled, no client copy of refresh was done at that time.
> > >Hopefully it
> > > > > > doesn't occur many times...
> > > > > >
> > > > > > Regards,
> > > > > >
> > > > > > Fred
> > > > > >
> > > > > > >From: Namit Bhargava <namit.bhargava at us.ibm.com>
> > > > > > >Reply-To: SAP Workflow Users' Group <SAP-WUG at MITVMA.MIT.EDU>
> > > > > > >To: SAP-WUG at MITVMA.MIT.EDU
> > > > > > >Subject: Re: Error WL 864: Background job SWWDHEX cannot be
> > >scheduled
> > > > > > >(error 6)
> > > > > > >Date: Thu, 26 Jun 2003 08:49:31 -0400
> > > > > > >
> > > > > > >Try rescheduling the background job (ask someone who has the
> > >required
> > > > > > >autho. BASIS Team) and then reprocess the workitem. This usually
> > >happens
> > > > > > >when a client copy is made or the system refreshed/rebooted.
> > > > > > >
> > > > > > >Thanks & regards,
> > > > > > >____________________________________________
> > > > > > >Namit Bhargava
> > > > > > >Sr. IT Specialist (EAI, SAP Workflow & ABAP)
> > > > > > >IBM Global Services - AMS/eBI
> > > > > > >
> > > > > > >Internet: namit.bhargava at us.ibm.com
> > > > > > >Telephone: Office (215) 832-1737 Cell (215) 668-6929
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > Fred Lunaspa
> > > > > > > <fredlunaspa at hotmai To:
> > > > > > >SAP-WUG at MITVMA.MIT.EDU
> > > > > > > l.com> cc:
> > > > > > > Sent by: SAP Subject: Error
> > >WL 864:
> > > > > > >Background job SWWDHEX cannot be scheduled (error 6)
> > > > > > > Workflow
> > > > > > > <Owner-SAP-WUG at MITV
> > > > > > > MA.MIT.EDU>
> > > > > > >
> > > > > > >
> > > > > > > 06/26/2003 08:43 AM
> > > > > > > Please respond to
> > > > > > > "SAP Workflow
> > > > > > > Users' Group"
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >Hello,
> > > > > > >
> > > > > > >One of our workflows ran into error. The error is:
> > > > > > >
> > > > > > >- Error WL 864: Background job SWWDHEX cannot be scheduled (error
> > >6)
> > > > > > >
> > > > > > >This means the deadline monitoring background job cannot be
> > >scheduled, but
> > > > > > >I
> > > > > > >wasn't able to figure out why. The workflow has been deactivated
> > >yesterday
> > > > > > >(this instance was created before yesterday, the instance ran into
> > >error
> > > > > > >this morning, thus 1 day after the workflow has been deactivated).
> > >Could
> > > > > > >the
> > > > > > >deactivation of the workflow be the reason the error occurred or
> > >must I
> > > > > > >find
> > > > > > >a solution elsewhere?
> > > > > > >
> > > > > > >Regards,
> > > > > > >
> > > > > > >Fred Kouw
> > > > > > >
> > > > > > >_________________________________________________________________
> > > > > > >MSN Zoeken, voor duidelijke zoekresultaten! http://search.msn.nl
> > > > > >
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> This e-mail and any attachment may contain confidential and privileged
> material intended for the addressee only. If you are not the addressee, you
> are notified that no part of the e-mail or any attachment may be disclosed,
> copied or distributed, and that any other action related to this e-mail or
> attachment is strictly prohibited, and may be unlawful. If you have received
> this e-mail by error, please notify the sender immediately by return e-mail,
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> subsidiaries and/or its employees shall not be liable for the incorrect or
> incomplete transmission of this e-mail or any attachments, nor responsible
> for any delay in receipt.
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