Process Chain excessive run time

Hi all
Would like to know if any of you have experienced what we are experiencing.
We have a process chain that runs every night.  It is running the same master data which usually only takes seconds.
However, on occassions, the same amount of data is taking over 18 hours to load.
When we look on monitor in the detail tab, it shows that it has only taken seconds but the header tab is showing 18 hours.  This then delays any other subsequent process chains from being kicked off.
We are investigating as to why this is happening but any comments would be appreciated.
thanks in advance
Sandra

Hi Sandra,
I can suggest you few things which may help u...
1) Increase the parallel processing during extraction
2) Selective loading.
3) Every job will be having a priority (A, B, C – A being the highest and C being the lowest), choose this based on your scenario.
4) Check with basis for the sizing of your server.
5) You can increase the number of background processes during data loads. This can be done by making dialog processes as Background processes.
For this you need basis inputs. (This is done in some profile settings by making the system behave differently during loads. (something like day mode/night mode))
6) There are some maintenance jobs that should run regularly in any SAP box to ensure proper functioning.
7) Use of start routines is preferred instead of update routines.
Assign points if these help u...
Regards,
KK.

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    S

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  • DSO activation in Process Chains - takes long time

    Dear All,
    We have included DSO activation in Process Chains. This process takes a long time to execute. We manually cancel the corresponding process in Process Overview and repeat it from chain. The chain runs daily and this issue also occurs on a daily basis.
    Does anyone one of you have an idea of how to deal with this performance issue?
    Regards.

    Figure out in which class does your process fall in:
    Class A- High Priority
    Class B- Medium Priority
    Class C- Least Priority
    Background processes
    Class A jobs
    The number of work processes reserved for job class A is a subset of the number of background processes.
    You should only reserve work processes for job class A if it makes sense within your system organization. Work processes reserved for class A jobs are no longer available for job classes B or C.
    Set parallel processing for a specific BW process in the (variant) maintenance of the process
    Call the function for setting the parallel processes.
    You can call the function in the process variant maintenance of a process chain or in the process maintenance. The function call varies for the different BW processes.
    For example, in the data transfer process you call the function with Goto-->  Background Manager Settings.
    The Settings for Parallel Processing dialog box appears
      Under Number of Processes, define the maximum number of work processes that should be used to process the BW process.
    If you enter 1, the BW process is processed serially.
    If you enter a number greater than 1, the BW process is processed in parallel
    In the Parallel Processing group frame, make the relevant settings for parallel processing in the background:
    Enter a job class for defining the job priority.
    The job priority defines how the jobs are distributed among the available background work processes
      In the group frame Parallel Processing, you can define whether parallel processing should take place in dialog work processes or in background work processes for the processes ODSACTIVAT, ODSSID and ODSREQUDEL for the DataStore object
    Transport:
    The entries in tables RSBATCHPARALLEL and RSBATCHSERVER are written on a transport request of the Change and Transport System.
    Edited by: ram.pch on Oct 7, 2011 9:55 PM

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